Doctor Who_ The Sensorites Part 1

DOCTOR WHO.

THE SENSORITES.

by NIGEL ROBINSON.

Prologue.

Out in the still and infinite blackness of uncharted s.p.a.ce, hundreds of light years from its planet of origin, the s.p.a.cecraft hung, caught like a fly in a gigantic spider's web. Here in the outermost reaches of the galaxy few stars shone; what little illumination there was came from the bright yellow world around which the ship moved in perpetual orbit, and that planet's mother star.If there had been human eyes to watch, they would have recognised the ship as an interplanetary survey vessel, one of many sent out from its home planet in the early years of the twenty-eighth century to search for new sources of minerals to replace those long since squandered on Earth. Nearly a fifth of a mile in length and with its dull grey hull studded with innumerable scars, the result of thousands of meteor storms encountered in its four year journey, its survey had been almost complete when it entered this region of the galaxy; and now here it remained, a ghost-like satellite in the planet's otherwise moonless sky.Along the cold and empty corridors of the ship all was still, save for the occasional tinkling of an on-board computer and the steady rhythmic pulse of the life support system. Otherwise a ghastly silence reigned, as impenetrable as stone and as quiet as the dark and lonely grave.The crew's quarters, the recreational areas, even the power rooms and laboratories were also empty and shrouded in semi-darkness. All unnecessary power had long since been reduced automatically to a minimum: where there were no living creatures there was also no need for light.Upon the flight deck, once the hub of all activity on board the s.p.a.ceship, the same all pervasive stillness was supreme. By the navigation and command consoles, their forms half-hidden in the baleful light of the scanners, sat two motionless figures - a man and a woman. Dressed in the same one-piece military grey tunics, they were slumped over their respective control boards, their ashen faces totally oblivious of their surroundings, or of the digital read-outs displayed on the computer screens above their heads.A single blinking light on a control console indicated that the ship was in flight, continuing its interminable and purposeless...o...b..t of the yellow planet. But there was no one on board the ship able to acknowledge its futile warning, nor to take any action to alter the s.p.a.ceship's course.To all intents and purposes, it was a ship of dead men, going nowhere.

Strangers in s.p.a.ceIn the dazzling expansive surroundings of a control room which boasted instruments no one on twenty-eighth century Earth could even have dreamed of, the four people around the central control console seemed strangely out of place. As out of place, in fact, as the antique bric-a-brac which crowded the room.The youngest of the four was a teenager, dressed in the style of clothes common to Earth in the 1960s. No longer a girl, and not yet quite a woman, her closely cropped hair framed a face of almost Asiatic prettiness, and her dark almond eyes belied an intelligence far beyond her tender years. Her companions were all turned intently towards the flickering instrumentation on one of the six control panels of the central console. She, however, looked enquiringly at the puzzled face of the silver-haired old man, from whose side she seldom strayed and whom she trusted implicitly.'What is it, Grandfather? What's happened to the TARDIS?' she asked, her tone wavering as she tried hard to conceal the inexplicable sense of unease she felt within herself.The old man looked up. 'I really don't know, my child, I really don't know,' he said, tapping the fingers of his blue-veined hands together as was his habit when faced with a vexing problem.He wore a long Edwardian frock coat, checked trousers, a crisp wing-collar shirt and a meticulously tied cravat. He seemed every bit the image of a well-bred English gentleman of leisure rather than the captain of a highly advanced time and s.p.a.ce machine.Turning to his other companions he drew their attention to the tall gla.s.s column which now rested motionless in the centre of the hexagonal control console. 'All indications are that the TARDIS has materialised. But that' - and here he pointed to one persistently flashing light on the control board - 'says we are still moving. Now, what do you make of that, hmm?'The third member of the TARDIS crew spoke up, a tall tidy woman in her late twenties, with a stern purposeful face which nevertheless possessed a melancholy beauty. Like Susan she too dressed in the fashion of late twentieth-century Earth, though her more conservative clothes reflected her maturer years. 'Perhaps we've landed inside something?' she suggested. 'Perhaps that's why we appear to be moving? What do you think, Ian?''You could be right, Barbara,' agreed the stocky well-built young man beside her. He spoke to the old man: 'Try the scanner again, Doctor; let's see what's outside.'The Doctor activated a switch and the four travellers looked up at the scanner screen, set high in one of the roundelled walls of the control room. The picture on the screen was nothing but a blanket of random flashes and lines.'Covered with static,' observed the Doctor.'That could be caused by a strong magnetic field,' Ian ventured.'Yes. Or an unsuppressed motor,' agreed his older companion.'Can we go outside, Grandfather?' asked Susan.The Doctor allowed himself a small smile, recognising in his granddaughter the same insatiable curiosity which had caused them to begin their travels so very long ago. He nodded his a.s.sent: 'I shan't be satisfied till we've solved this little mystery.'By his side, Barbara sighed. 'I don't know why we bother to leave the TARDIS sometimes,' she said gloomily.'You're still thinking about your experiences with the Aztecs,' remarked the Doctor.Barbara's mouth formed a rueful half-smile. 'No, I've got over that now,' she said, recalling a previous adventure in fifteenth-century Mexico. There she had unsuccessfully attempted to put to an end the Aztecs' barbaric practice of human sacrifice. The Doctor had watched her struggle with wry admiration, knowing all the time that no mortal man could ever halt the irreversible tide of history. The Aztecs had practised human sacrifice and nothing that Barbara or even he - travellers out of time - could do would ever alter that immutable historical fact. The Doctor had long ago come to terms with the futility of attempting to change history, but Barbara could never stand back and watch her fellow creatures suffer. Cold scientific observation was all very well, but it meant nothing if not tempered with human compa.s.sion and love.But she would eventually accept the strictures placed on travellers in the fourth dimension, thought the Doctor. Yes, Barbara and Ian would learn from their fellow travellers, just as he and Susan would learn from them.The Doctor paused for a moment to recall his first meeting with Ian and Barbara. Teachers at Coal Hill School in the London of 1963 and curious about the background of their most baffling pupil, they had followed Susan one foggy night to an old sc.r.a.pyard in a shadowy road called Totters Lane. There they had finally met the girl's grandfather and guardian - an intellectual giant known only as the Doctor, an alien cut off from his home planet by a million light years in s.p.a.ce and thousands of years in time. And there too they had stumbled across the secret of the TARDIS - a craft of infinite size, capable of crossing the dimensions of time and s.p.a.ce, and housed in the impossible confines of a battered old police telephone box.Originally unwilling fellow travellers, Ian and Barbara had grown fond of their alien companions, as had the Doctor and Susan of them. And though at times the two teachers -Barbara especially - thought longingly of returning to their own planet, their journeys through time and s.p.a.ce still inspired in them a great pioneering spirit; what had started so long ago as a mild curiosity in a junkyard had now turned into quite an exciting adventure.The Doctor applied himself once more to the problem in hand. With an experience born of countless journeys, his eyes dashed quickly over the dials and digital displays on the console. Satisfied with the read-outs from the TARDIS computer, he turned to his granddaughter. 'Open the doors, Susan,' he commanded.'You've checked everything then, Doctor?' asked Ian.'Of course I have, Chesterton,' he replied peevishly. 'Plenty of oxygen and the temperature's quite normal.''So there's just the unknown then,' said Barbara.'Precisely!'Susan operated a small control on the console. With a gentle hum the great double doors opened. All four travellers felt the same thrill of antic.i.p.ation they always felt upon entering a new world. What would lay waiting for them beyond the doors?The police box exterior of the TARDIS had materialised inside a long shadowy corridor. But for the large circular doors which periodically interrupted the ridged aluminium panelling of the walls, the time-machine might just as easily have landed in an underground tunnel: everywhere there was the same claustrophobic sense of doom and menace. Indeed, the air seemed as stale and musty as the air of any tunnel could. There was no sound to be heard.'You were right, Barbara,' said Ian; 'we have landed inside something.''It's a s.p.a.ceship!' exclaimed the Doctor triumphantly, satisfied now that the mystery of the TARDIS's apparent motion had been explained. 'Close the doors, Susan,' he said to his granddaughter, and then addressed his other companions: 'Let us be careful: there seems to have been some sort of catastrophe here.'With the TARDIS doors securely locked, the crew ventured cautiously down the s.p.a.cecraft's grey corridor. The design of the ship seemed to be solely functional and was devoid of any decoration or colour. Whoever the ship's crew might be, thought Barbara, they must be very dreary - or extremely dedicated. But as she walked down the long pa.s.sageway, almost wading though the oppressive silence, she began to wonder if the ship was inhabited at all; perhaps it had been abandoned years ago, left to drift through all eternity like a Maty Celeste of s.p.a.ce?The Doctor had considered it wise to keep to one corridor, rather than pursue any of the connecting pa.s.sageways or doors, and after some minutes the four friends came upon what they took to be the s.p.a.ceship's main flight deck. Here the gloom was dispersed somewhat by the illuminated screens set around the walls, and the view of a bright yellow planet through the observation port. Several banks of computers lined the walls and they chattered away spasmodically to each other. But other than that the place was dead: no movement, no life, nothing.It was Ian who first saw the two bodies. Rushing over to the man, he raised his head from where it had slumped onto the control panel, and felt for a pulse. Nothing. Shaking his head, he returned to the others, one heavy word on his lips: 'Dead.''Look, this one's a girl,' cried Susan, going over to the body at the navigation console.Barbara quickly joined her and, like Ian, checked for signs of life. 'I'm afraid she's the same,' she sighed. 'What could have happened to them? I can't see a wound or anything.''Suffocation, Doctor?' ventured Ian.'I never make uninformed guesses, my friend,' said the Doctor, tapping his coat lapels, 'but that's certainly one possibility.' He looked down at the dead girl's face. Her fair hair was piled in disarray on top of her head, but there was still a prim beauty about her. 'Such a great tragedy. She's only a few years older than Susan.'While her companions had been examining the bodies, Susan had stood back, feeling once again that strange sense of unease she had experienced before in the TARDIS. It wasn't the fact that these two young astronauts were dead; she had seen death before, in many gruesome forms. But this was something different, inexplicable. It was as if a thousand voices were shouting in her head, telling her to get off this ship of dead men while she still had the chance. 'Grandfather, let's get back to the TARDIS. Please . . .' Her voice trembled.'Why, my child?' asked the Doctor, looking up from the dead girl's face.'I ... I don't know. I've got a ... feeling . . . about this. . .'Barbara moved closer to her erstwhile pupil. 'Yes, I can feel something too . . .'Hardly a great respecter of female intuition, even Ian had to admit that there was something distinctly unnerving about this dark and silent ship. 'You mean whatever killed them could kill us too?'Even if Barbara and Susan could have explained their irrational fears the Doctor left them no time to answer. In an attempt to determine the cause of death, he had been examining the young girl and pointed out to Ian the watch she was wearing. 'Chesterton, do you notice anything unusual about this watch?' he asked.Ian shook his head in bewilderment.The Doctor continued: 'It isn't working. Now, this model is one of the old automatic types: it depends on the movement of the wrist to recharge the spring inside every twenty-four hours.'Ian looked at the time displayed on the watch. 'And it's stopped at three o'clock,' he observed.'Then if we say that it's just stopped, that would mean that the last movement of this poor child's wrist would be twenty-four hours ago.''That's all very well, Doctor,' Barbara said practically, 'but it still doesn't tell us anything about how they died.'The Doctor shrugged his shoulders. It was his habit to seek out every possible piece of information. But even he had to admit that in this particular case his findings had helped very little.Susan had meanwhile moved over to the dead man and idly lifted his wrist to look at his watch. Suddenly she let out a little scream of shock, dropping the man's limp arm. 'Grandfather! He's warm!'Barbara rushed over. 'Then this one's just died!''But look at his watch, Barbara,' said Ian. 'It's stopped at three o'clock too.''It doesn't make sense, does it?' said the Doctor, evaluating the situation. 'But all the facts are here before us: the watches stopped at least twenty-four hours ago, but we know that this poor fellow's just died. Now, why should that be, hmm?'He looked challengingly at his companions, who returned his look with blank faces. Here was another mystery for the Doctor to solve, another solution to seek out, but. . . Like his three friends before him, the Doctor felt the icy hand of uncertain fear touch him. Perhaps it might be better to let the dead rest in peace . . . He shook his head: 'I think it would be wise if we returned to the Ship, and leave these people. There's nothing we can do for them.'Ian, Barbara and Susan breathed an almost audible communal sigh of relief. At last they would leave this place of irrational fear and unknown menace and return to the bright security of the TARDIS.'We can't even bury them,' sighed Barbara.'Come along then, let's get back to the TARDIS,' the Doctor urged.The four walked slowly back to the entrance to the corridor. Allowing themselves one last look at the sad scene on the flight deck they turned - to see the dead man fall forward onto his control panel, and to hear him give out a long groan of anguish.Ian bounded over to him, shaking by the shoulders what had but a minute ago been a corpse. Now the man's eyelids were fluttering, and his gaunt swarthy features were contorted in pain.'His heart had stopped beating, Doctor!' Ian protested. 'He was dead!'Not only was he now alive but his parched lips were also moving. Ian bent down to him in an attempt to hear the words he was struggling to say. With one painful move of his arm, the once-dead man indicated a shelving unit at the far end of the flight deck.Ian went over to the unit. 'What is it? What do you want?' he asked as he searched the contents of the shelves. His hands alighted on a small box-like device. 'Is this what you want?'From the man's lips came a croak of affirmation. Ian rushed back to him, and he grabbed the device with a surprising vigour, clutching it almost possessively to his chest.Within a matter of seconds, the colour had returned to the man's deathly pale complexion, and he was able to sit upright in his chair. He rubbed his eyes in an attempt to refocus his vision and then handed the box over to Barbara and nodded towards his colleague. 'Place this against Carol's chest,' he said, his voice still barely more than a whisper.Barbara looked down at him with pity. 'I'm sorry, Carol's dead.''Please do as I ask!'Resigned, Barbara did as instructed. As with the man it took but a few seconds for the girl to revive and sit up. She looked around her in confusion until Barbara's friendly smiling face allayed her fears.'But you were both dead,' Ian maintained. 'What was in that box?''It's a heart resuscitator,' the man explained to the baffled schoolteacher. His voice was rapidly becoming steadier and stronger. 'When you found us we were in a very long sleep. Most of our vital functions had been suspended - but we weren't dead.'With a little help from Barbara the girl called Carol came over to the man who introduced himself to the time-travellers. 'My name is Maitland. This is Carol Richmond, my co-astronaut.''We're pleased to meet you,' said Ian and introduced his party to the astronauts.'Tell me, young man,' began the Doctor, 'are you from Earth?'Maitland nodded.'How's it looking then?' asked Barbara cheerily, suddenly realising that Maitland and Carol were the first near-contemporaries she and Ian had met since they began their travels with the Doctor.'There's still too much air traffic,' Carol replied wryly.'They got it off the roads then, did they?' was Ian's rejoinder. Like Barbara he had quickly warmed to the two astronauts. 'We come from London,' he offered. 'Tell me, is Big Ben still on time?''Big Ben? What's that?' asked Carol.'It's a clock near Westminster Abbey,' Barbara explained.Maitland attempted to enlighten her. 'The whole lower half of London is now called Central City,' he said. 'There hasn't been a London for over four hundred years.'Barbara and Ian exchanged a look of astonishment as Maitland continued: 'This is the twenty-eighth century. Which century do you come from? The twenty-first perhaps?'Before the development of hyper s.p.a.ce travel, it had become customary to put astronauts in cryogenic suspension, so that they would sleep the long journey to their destination. With the establishment of hyper s.p.a.ce travel it was becoming increasingly common for astronauts to actually overtake s.p.a.ceships which might have left Earth generations before using conventional power sources. Maitland had quite naturally a.s.sumed that the Doctor's party were astronauts from an early age who had been reawakened from their suspended animation and come aboard his ship.Carol interrupted Ian and Barbara's hesitant explanations. 'Captain Maitland, these people must leave us immediately.' There was a quiet determination in her voice of which both Barbara and Ian were acutely aware.'Yes,' agreed Maitland, 'you can't stay here.''Why not?' protested Ian. 'There are so many things we want to learn.''No. There's danger here. You must go.' The tone was final.'Danger?' asked Barbara, her senses alerted. 'What sort of danger?'Maitland shook his head. 'It's better you don't know what happened to us . . .''But we might be able to help,' she insisted.The Doctor had been listening to this conversation with increasing interest and interrupted his companion. 'No, Barbara, I learnt not to meddle in other people's lives years ago,' he chided her.Ian instantly snorted with disbelief, as though Attila the Hun had just declared that all he wanted to do was stay at home and look after the children. The Doctor did not fail to notice this.'Now, don't be absurd!' he snapped. 'There's not an ounce of curiosity in me, my dear boy!' Ignoring Ian and Barbara's chuckles of derision, he asked Maitland, 'Tell me - why are you in danger?'There was something in the Doctor's eager searching eyes which made Maitland realise the utter futility of dissuading the old man now that his curiosity had been aroused.'Very well, I'll try to explain,' he said and pointed to the view port near the navigation console. Framed in the port was a bright yellow planet. 'Out there is what we call the Sense-Sphere. Its inhabitants - the Sensorites - have always prevented us from leaving this area of s.p.a.ce.''You mean that they have some sort of power over your s.p.a.cecraft, keeping it in orbit around their planet?' asked the Doctor.'It's not quite that simple.They not only control our craft, they also have some sort of influence over us.''Hypnosis?'Maitland shook his head and the Doctor pressed him further.'They have some sort of control over our brains,' Maitland said. 'These Sensorites are hostile but in the strangest possible way: they won't let us leave this area of s.p.a.ce, but neither do they attempt to kill us.''What had happened when we found you then?' asked Susan.'The same thing that's happened many times before,' said Carol. 'The Sensorites had put us into a deep sleep, which gives the appearance of death. . . And yet they've never tried to destroy us.''On the contrary,' continued Maitland, 'we have very hazy memories of them actually returning to our ship from time to time to feed us.''But they've never communicated with you?' asked the Doctor.Maitland shook his head again.'It just doesn't add up,' said Ian.'Yes. And that is why you must go at once. Otherwise the Sensorites might try and prevent you from leaving too. You must not delay any longer.'While Maitland had been speaking Barbara had noticed a faint acrid smell in the air. Now it was stronger. 'I can smell something burning,' she said to Susan.'Now you mention it, so can I,' the girl agreed.Neither the Doctor and Ian nor the two astronauts paid the girls much attention. The Doctor, for one, was far more interested in Maitland and Carol's seeming reluctance to talk about the Sensorites. Was there something they were hiding from him?'Surely there must be something we can do for you?' asked Ian.The Captain shook his head despairingly 'No. No one can help us. . .''Couldn't we take them with us in the TARDIS, Grandfather?' asked Susan.'No. We cannot leave this ship,' said Carol. 'You see, there's . . . there's John to think about. . .''John?' The Doctor was immediately intrigued by this new addition to the crew, and by the tremor he detected in Carol's voice when she spoke the name. 'And who might John be, hmm?''He's our mineralogist . . .' Carol said. She felt herself suddenly very close to tears.Barbara interrupted the Doctor's questioning. 'There is something burning!' she insisted, her concern growing.Ian sniffed at the air. 'I think you're right, Barbara. Maitland, you wouldn't have a short circuit, would you?''No, that's impossible.'Barbara moved over to the open door and beckoned Ian to follow her down the corridor. 'It seems to be coming from down here. Let's take a look.'Relatively unconcerned with what was in all probability an overloaded junction box, the Doctor resumed his conversation with Maitland. He still insisted upon the immediate departure of the TARDIS crew.'There does seem to be nothing else I can do for you here,' the Doctor admitted, casting a pitying look at Maitland and Carol. There was undoubtedly something they were concealing from him, but he could tell from their determined faces that they would not allow him to help them. Well, if that was their wish, so be it. He made up his mind: 'Goodbye, my friends. Come along, Susan.'He took his granddaughter's hand and for the second time they sadly took their leave of the flight deck. As they left, Maitland and Carol exchanged looks of relief and regret.As the Doctor and Susan walked down the corridor which led to the TARDIS they caught up with Ian and Barbara. 'It's stronger down here, Doctor,' Barbara called out from the gloom in which the time-machine had materialised.'Perhaps it's coming from inside the TARDIS,' the Doctor suggested.Susan took out her key to open the door. Suddenly she started. 'Grandfather, look!'The Doctor followed Susan's pointing finger. On the left-hand door of the police telephone box, where there should have been the TARDIS lock, was now nothing but a large hole and a patch of charred woodwork. A few wisps of smoke still hung around the s.p.a.ce.'Good grief!' cried the Doctor indignantly. 'They've taken the lock!''No, Grandfather, don't you see?' Susan's voice was now almost hysterical. 'It's not just the lock - it's the whole opening mechanism. The doors are permanently locked!''Permanently?' repeated Ian, a hint of panic in his voice. 'There must be a way in,' he insisted. 'Can't we break down the door?''And disturb the field dimensions inside the TARDIS?' said the Doctor, outraged at the very idea. 'We dare not! We have been most effectively shut out!''The Sensorites?' asked Barbara.'Who else?''But why? What do they want from us?''I don't know,' admitted the Doctor. 'And for that matter why have they kept those two astronauts in captivity?''Grandfather . . .' began Susan. 'What's that? Can't you feel it too?'At first she had thought it was her imagination, but even as she spoke her companions could also detect a faint vibration in the floor of the s.p.a.ceship. It rapidly grew stronger, louder, shaking the floor beneath their feet and the walls all around them; shaking the travellers like dice in a can; shaking the entire world. It seemed that the whole s.p.a.ceship was about to fall apart.'What is it? What's happening?' cried Ian, his teeth chattering helplessly together. Barbara held her hands over her mouth, fearful that the stomach-churning vibration would make her vomit.'Back to the flight deck! Quickly!' commanded the Doctor.As the four time-travellers stumbled back down the corridor, hopelessly attempting to keep their balance in this madness, the frightening reality of their situation crashed down on each of them.They were marooned, separated from the safety of the TARDIS, alone in the unimaginable emptiness of s.p.a.ce.Totally helpless, they were at the unrelenting mercy of unseen foes who lurked in the shadows. Unseen foes who could invade the inviolable sanct.i.ty of the TARDIS. Unseen foes who seemed intent to tear apart this s.p.a.ceship as a child would an unwanted toy.Helpless. Alone. Afraid.The Sensorites were in control.

War of NervesThe Doctor's party burst onto the flight deck and onto a scene of barely supressed hysteria. Maitland and Carol were in a state of semi-shock, almost unable to move, and seemingly powerless to operate the ship's controls.They sat trembling at their consoles, their hands pressed to their temples as though to shut out the mind-jarring vibration all around them. Carol was moaning over and over to herself: 'Get back . . . get away ...'The Doctor grabbed Maitland by the shoulders and shook him vigorously. 'What is it, man?' he demanded. 'Can't you control your own ship?'Maitland looked at the Doctor in despair. 'It ... it's no use,' he stammered, 'I. . . I'm powerless. The Sensorites are stronger than I am.'Recognising that Maitland could be of no help to them, the Doctor pushed him aside and took charge in the midst of the chaos. A glance at the control panels told him that the ship was veering wildly off its predetermined course.'Which is your parallel thrust?' he demanded of the terrified captain. Maitland gestured to a bank of levers to the left of the control panel, and the Doctor immediately initialled a series of delicate adjustments to the orbital balance. Addressing Ian who had joined the whimpering Carol by the navigation console, he snapped, 'Velocity, Chesterton. Check it!''It's not registering, Doctor!' he said through clenched teeth.Maitland looked at the Doctor in wild-eyed terror: 'To try and control the s.p.a.ceship is suicide, I tell you!''Oh, do go away!' The Doctor dismissed him and then reconsidered: 'Which are the stabilisers? Think, man!'Maitland pointed a quivering finger to the controls. With a preciseness all the more remarkable in the circ.u.mstances the Doctor eased the stabilisers into place.Almost as quickly as it had begun the shuddering of the ship ceased and relative peace returned once more to the flight deck.'There!' beamed the Doctor, smug satisfaction filling his face. 'All systems are steady. The ship was spinning about on its axis,' he explained.But they were far from safe. As soon as one horrifying fate was averted, a new danger threatened. Turning to the observation port, they saw the yellow orb of the Sense-Sphere appearing brighter and larger than before. The s.p.a.ceship was on a collision course, heading straight for the planet!'Where are your deflection beams, Maitland?' asked the Doctor.'There,' he replied, indicating a series of red b.u.t.tons on a white panel. 'But it's useless, I tell you . . . useless . . .' he repeated.'Pschaw!' The Doctor made obvious his contempt for Maitland's defeatism. 'I'll see about that! Velocity reading, please.'Happy to have something to take her mind off the surrounding chaos, Carol replied, 'Mach three . . . and increasing.'The Sense-Sphere now filled the entire view port. It was Ian's turn to panic. 'We're only nineteen miles to the nearest point of impact!' he cried.'Barbara!' cried Susan, automatically clutching her teacher's arm. 'We're going to crash!'Calm among the pandemonium, the Doctor barked out his orders as he adjusted the ship's controls. 'Check course now!''We're lifting slightly,' said Ian. 'But the velocity's still increasing.''Check reverse thrust to starboard-now!''Doctor!' screamed Carol, 'we're increasing to mach four. We're still going down! We're heading for point of impact!'The Doctor turned to Maitland. 'Boost the engines,' he ordered. 'Engage forward thrust.'The captain looked blankly at the old man. He was totally immobile in his terror.'Oh, for heaven's sake, man!' cried the Doctor. He pushed past Maitland again and pulled down the main booster lever in front of him.Instantly the view of the Sense-Sphere dropped from the observation port, as the s.p.a.ceship responded to the Doctor's adjustments and shot out of its collision course.In the general sigh of relief, Maitland sat alone, his face covered in a cold sweat. Like a man possessed he looked at the main booster lever which he had failed to engage and then back at his trembling hands.'Why couldn't I do it?' he asked despairingly. 'Why couldn't I do it?'A little while later everything had returned to its semblance of normality and the s.p.a.ceship had resumed its usual orbit of the Sense-Sphere. Barbara and Susan had left the flight deck to prepare a meal from the s.p.a.cecraft's supply of iron and protein concentrates, while the Doctor a.s.sessed the situation to an audience of Ian, Carol and a still shaken Captain Maitland.'You know,' said the Doctor, 'these Sensorites weren't trying to kill us at all. I think what we've just undergone was an exercise in fear and power. They have incredible mental facilities - we've all experienced how they can control our minds.''Yes,' agreed Carol, 'but for some reason your minds aren't as open to them as ours are.''And you, my dear, found a way to resist them,' he reminded her. 'Whereas our friend Maitland's power to resist them was taken from him.''I was afraid,' Maitland said simply. 'All my training and I was so afraid I couldn't even move.' He was totally, utterly despondent.Ian laid a rea.s.suring hand on his shoulder. 'No, you weren't,' he said kindly. 'They just made you feel hopeless.''Quite right, Chesterton,' the Doctor said. 'You know, it's all quite extraordinary. These Sensorites are dangerous and cunning, certainly, but that's not all. They can control, they can frighten - but they don't attempt to kill. Furthermore, they feed you and keep you alive up here in that death-like trance. Now, why are you so important to them, hmm?'Maitland and Carol exchanged blank looks. There was no imaginable reason for the Sensorites' apparent desire to keep them prisoner in eternal orbit around the Sense-Sphere. If they posed a threat to the aliens surely it would be better to kill them, rather than take all this trouble to keep them alive and healthy? And why had they so efficiently marooned the Doctor and his friends? Did the Sensorites have some terrible unknown plans for them?'Has either of you ever seen or met these creatures?' asked the Doctor.Carol nodded sadly. 'John has . . .''Ah yes, your mineralogist,' said the Doctor, 'I'd like to have a talk with him.''I'm afraid that's quite out of the question,' snapped Maitland, suddenly on the defensive.The Doctor raised an enquiring eyebrow. 'Really? And why not?' he asked, aware of the raw nerve he had touched in both Maitland and Carol.Maitland dismissed the Doctor's insistent questioning with a shrug of the shoulders. 'I - I don't want to talk about it . . .' he said lamely.The Doctor looked curiously at the two astronauts who avoided his gaze. A sixth sense was buzzing in his mind. At last he had found the key which might begin to unlock this mystery.That key was John.Barbara and Susan stood alone in the gloom of a small pa.s.sageway, unsure of which way to turn. They had come to a dead end and were faced with a choice of two doors to take. Barbara secretly suspected that they had taken a wrong turning, but said nothing to Susan. To be lost in this maze of half-lit corridors was not something to be desired: it was hardly worth alarming Susan.She indicated the right-hand door. 'Let's try this one. I'm sure Carol said that the ship's galley was this way - though I really can't imagine a kitchen on board a ship like this . . .''Oh, it won't be anything like you've seen,' Susan said cheerily. 'Just stocks of iron and protein pills - and recycled water,' she added mischievously.Barbara made a face of mock horror and disgust, and pressed her hand on the touch-sensitive panel by the door. The large circular door opened, sliding soundlessly upwards.As she and Susan pa.s.sed through the doorway they failed to notice a dark form detach itself from the shadows at the far end of the room. Slowly, relentlessly, it shuffled after them.'Hey, this is brilliant!' Susan exclaimed upon entering the room. 'It's a library!' She indicated the rows of shelves containing microfilm and log books, and the study desks, each with its own microfiche reader.'I don't think we should stay here,' Barbara advised. 'Let's get back to the others.' She was now certain that they had indeed lost their way, and in the dimmed lighting of the ship's interior that odd sense of unease she had felt before was returning.There was something not quite right here. The rhythmic pulse of the life support system sounded strange, as if another noise had been added to it, a harsh, irregular sound, almost like...She nearly jumped out of her skin when Susan clicked on the microreader. The harsh light from it threw three grotesque moving shadows on the wall.Three.Susan was absorbed in reading the microfiche entries. 'Barbara, look at this - it's a log of the ships's journey. The last entry seems to have been made over a year ago. They dropped most of the crew off at s.p.a.ce Station Two-Alpha-Five and were on their way home when -' The grim realisation suddenly struck her: 'Barbara, they've been asleep for thirteen months!'But Barbara was in no mood to listen as she silently drew Susan's attention to the doorway and the lumbering shape which stood before them.Silhouetted against the light it stood motionless, challenging Barbara and Susan. As it staggered slowly towards the two terrified girls the light from the microreader cast a macabre light on its face, revealing a shock of white hair and two unblinking white eyes staring out from a deeply lined and careworn face.Susan clutched Barbara in terror: 'What is it, Barbara?What is it?Back on the flight deck the Doctor and Ian continued their relentless questioning of Maitland and Carol about the third member of their crew.'Don't you see?' argued Ian, infuriated at the astronauts' apparent unwillingness to understand. 'John might be able to give us some valuable information about the Sensorites.''I told you - you can't see him.' Carol's steely defiance was matched by Maitland who answered the Doctor and Ian's questions with an impa.s.sive, emotionless stare.The situation was hopeless, thought Ian. Maitland and Carol were locked in a conspiracy of silence. In an attempt to break the tension he asked casually, 'What's keeping Barbara and Susan? I'm starving.'That seemingly careless remark suddenly galvanised the two astronauts into action. Maitland sped over to the main exit door through which Barbara and Susan had gone in search of the ship's galley. Hoping against all odds, he waved his hand over the opening mechanism.Locked.He turned despairingly to Carol. 'We should have warned them!''The door must have been locked from the other side,' she said and then addressed the Doctor and Ian: 'Quickly -they're in danger. We must get in from the other door.' She ushered Maitland and the bewildered time-travellers to a secondary exit door at the far end of the flight deck. That too was now locked.The Doctor grabbed Maitland. 'What is it, man? What is going on behind that door?' he demanded, his concern for Susan's safety evident in his voice.'It's no use,' Maitland said, all hope gone. 'There's nothing we can do for them. We can't get off the flight deck . . .''Who's done this?' asked Ian, pointing at the two locked doors. A dreadful fear crept over him as he asked, 'Are there Sensorites in there?'It was a man, gaunt and emaciated, looking more dead than alive, but a man nevertheless. His wide, maniacally staring eyes bulged out of their sockets as he stumbled remorselessly towards Barbara and Susan.The girls were cowering in a darkened corner of the library, scared out of their wits. As he drew nearer to them he held out his arms, almost in a gesture of supplication. Suddenly he stumbled and fell to his knees at the girls' feet.Seizing this opportunity, Barbara and Susan took flight, rushing past the man, out of the library and into the pa.s.sage outside. But to their horror the exit from the pa.s.sage had now been locked. As they struggled to pull open the door, which opened outwards, they were aware of the crazed man following them once more, his breathing harsher this time, and his footsteps sounding somehow even more menacing. . .He was within almost a foot of them when he suddenly pressed his hands to his throbbing temples and let a cry of anguish escape from his dried and cracked lips. And then, to Barbara and Susan's utter astonishment, he turned around and rushed wailing down the corridor.While the Doctor and Ian were busy attempting to override the locking mechanism of the flight deck's main exit door, Maitland and Carol were standing some way back, engaged in a fierce but whispered argument.'We've been over this a hundred times before, Carol,' Maitland hissed. 'We must not go after John.''But the other times the Sensorites made the decision for us,' countered Carol. 'The Doctor and the others have shown us that we can resist them. It's only fear that makes us weak.''Carol, it's too dangerous,' Maitland pleaded. He remembered all too well his own fear when the Sensorites took control of the ship.'What you mean is, I mustn't go in there,' accused Carol 'You're afraid for me . . .'Maitland's voice was suddenly tender and sympathetic. 'I know how much John meant to you, Carol.'Carol sighed, pained by the memory. 'The last time I saw him he didn't even know my name . . . But I must see him and find out. Besides, there's Barbara and Susan to think about.''Maitland!' called Ian, angered at his and Carol's lack of a.s.sistance. 'Help us get through this door!'Finally swayed not by Ian's anger but by Carol's sad determination Maitland shook himself into action. 'Yes . . . we have some cutting equipment here - I'll get it rigged up and cut through this lock.''Well, get on with it then!'His attempt to open the door finally having met with failure, Ian walked over to Carol. 'Tell me,' he said, 'what is it you're afraid of?'Carol turned away, not wanting Ian to see the tears which were welling up in her eyes. 'John is in there,' she said. 'He and I were going to get married when we got back to the Earth. But we arrived here and . . . and the Sensorites affected him far more than Captain Maitland and myself. I ... I had to sit here helplessly and watch him get worse and worse ... It was terrible . . .''So they've taken over his mind,' Ian said gently. 'What's it done to him?''He'll be frightened of strangers. He may become violent . . .'Barbara and Susan cautiously ventured down the pa.s.sageway, looking warily around for any sign of their pursuer. But he seemed to have vanished, disappeared once more into the dark shadows which had so effectively concealed him.Suddenly the lights were switched on, temporarily blinding the girls whose eyes were unaccustomed to such cutting brilliance on board this gloomy s.p.a.ceship. They steeled themselves for an attack.It was an attack which never came. Before them, now fully visible in the harsh glare, was the madman, who once again fell down at Barbara's feet and emitted a long sorrowful moan.Susan looked down at him in disbelief. 'He's crying,' she said.'Who - who are you?' the man asked, his tear-stained face looking up into Barbara's eyes. 'You're like my sisters . . . Have you come to help me?' His voice was plaintive, like a little lost child's.Barbara bent down on one knee and held the man's hand in hers. In the light and close up he didn't look so terrifying after all, she thought; in fact, he looked more like a frightened little boy.'Are you one of the crew of the s.p.a.ceship?' she asked, noticing for the first time his grey uniform. 'Do you want us to help you?'The man nodded frantically, tears of delight and relief streaming down his face. 'John,' he said. 'My name is John.''Don't be afraid, John, we'll take care of you,' Barbara promised him, cradling his sobbing head in her arms. She suddenly looked for all the world like a teacher, comforting nothing more than a bullied child at Coal Hill School.'Can't you work any faster?' demanded the Doctor, irritated and impatient. 'My granddaughter's in there!'Maitland had opened up a storage locker and taken out a small cutting tool, in appearance much like a pencil torch. He was now applying its thin laser beam around the locking mechanism of the main door. But the process was painfully slow. As the Doctor and Ian stood by helplessly they had more than enough time to think of the terrible things which might be happening to Barbara and Susan on the other side of the door.'We should be through the lock very shortly,' Maitland told them from his crouched position by the door. Suddenly he stopped and looked up. His eyes met Carol's and a glimmer of fear and recognition pa.s.sed between them.'What is it now!' cried the Doctor, totally at odds with Maitland. 'Do get on with it!'Maitland waved for the Doctor to be silent. 'Listen,' he whispered. 'Can't you hear it?'Impressed by the urgency in his voice the Doctor and Ian stood to attention. Yes, there was something: a quiet hiss at first but now growing louder and louder into a high-pitched whine, like finger nails being drawn repeatedly across a blackboard. It came from the sub-s.p.a.ce audio receivers by the command console.Carol was the first to speak and there was no mistaking the nervous apprehension in her voice. 'It's the Sensorites,' she said. 'That interference is caused by the machines which carry them through s.p.a.ce . . .'Fighting the fear already mounting within him, Maitland abruptly took charge of the situation. 'Carol, get back to your instruments,' he ordered. 'Doctor, will you take the controller's seat?'As the Doctor hurriedly complied, Ian moved over to the observation window. Moving rapidly towards the s.p.a.ceship were two tiny pin-p.r.i.c.ks of light.'Are those the Sensorites?' he asked. Maitland nodded. 'But they must be miles away,' Ian continued.'It won't take them long to get here,' remarked the captain wryly. 'The Sensorite travel-machines move at unbelievable speeds.'Ian turned to the Doctor for confirmation. The old man nodded. 'Remember, Chesterton, they've been here once already. They took the TARDIS lock.''You mean, you think they took it back down to their planet?''Yes. And now they're coming back. With what orders, I wonder? To take over our minds? Or to kill us?''We're not going to be destroyed,' Maitland said wearily. 'If they intended that they could have done it many times before.''If that collision course was their idea of a joke I'd hate to be one of their enemies,' Ian added bitterly.Carol turned to him from her position at the navigation console. 'They weren't really trying to crash us, Ian. They just keep on playing this horrible game of nerves, breaking our will to resist. . .''But there must be something we can do!' he insisted. 'We can't just sit around and wait for them to arrive!''That's all we can do!' Carol retorted.'But surely we can take steps to protect ourselves?'The Doctor joined in the argument. 'My dear Chesterton, it's our minds they take over. So we have to a.s.sume that the brain is all-important. Now, let our intelligence be our own defence - and attack!'Ian was about to counter with his own arguments, but stopped dead. The high-pitched whine from the Sensorites' travel-machines which had reached an almost unbearable crescendo had stopped. The flight deck was plunged into a sudden eerie silence.Ian looked at his three companions. Maitland and Carol were staring past him, looking with stunned recognition at the observation port behind him. Even the Doctor's face betrayed an unaccustomed and uncomfortable expression of fear.Slowly Ian turned around to see what the others were staring at in the port.White and ghost-like against the blackness of s.p.a.ce a figure floated by the s.p.a.ceship. The creature's lack of any apparent s.p.a.cesuit or breathing apparatus made it seem almost super-naturally impervious to the sub-zero temperature outside, or the lack of air. The long elegant fingers of its outstretched hands guided it slowly along the outside hull of the ship, while its bulbous head searched this way and that for entry.Sensing the humans on the flight deck it tilted its head towards them, allowing them to look into an alien face which returned their gaze with cold, unblinking eyes. It regarded them curiously, observing them as one would specimens in a zoo. As the creature continued its steady appraising stare, the Doctor, Ian, Maitland and Carol all felt a thrill of spine-chilling terror.The Sensorites had arrived.

The Dreams of AvariceThe Doctor glared at the alien being in the observation port with arrogant defiance, as though he were engaged in a ma.s.sive battle of wills. Without taking his eyes off the creature he reached out for Ian's trembling arm.'Steady, Chesterton,' he said. 'The calmer you are, the stronger you will be.'Ian indicated Maitland who sat transfixed by his console. He waved a hand in front of his face, but the captain's unblinking eyes did not register the schoolteacher's presence: all they seemed to see was the alien at the window, gazing in at them.The Doctor nodded his head: 'Fear, my boy - that's what it is. It's loosened his mind: it gives the Sensorites the power to control it.'Turning away from the alien in the observation port, he went over to the captain and fixed him with an almost hypnotic stare. 'Maitland, can you hear me?' he said. 'There's work to be done. I need you!'Such was the power in the Doctor's call to his sense of duty that Maitland began to stir. The Doctor continued his appeal 'There's a door to be opened! Remember? Danger on the other side!'Suddenly aware of his obligations to those on board his ship, Maitland snapped out of his trance-like state. 'Yes, of course,' he said. 'We must save the girls!'As Maitland applied himself once more to the task of breaking through the locked door, the Doctor turned back to the observation port and smiled smugly to himself. His suspicions had been confirmed: now that the fear had been broken, the Sensorite was nowhere to be seen.Feeling ineffectual beside Maitland, with nothing to do but stand and wait, Ian was quickly becoming impatient with the captain's slow progress. It seemed to be taking forever for him to make even the slightest impression on the lock, during which time any manner of thing could be happening to Barbara and Susan.He voiced his fears to the Doctor who wagged an admonishing finger at him. 'Don't you think I'm not concerned too, Chesterton?' he asked. 'But we must contain our emotions. Otherwise, they confuse the brain and leave it wide open to the Sensorites. Look at poor Maitland: fear and inertia have left him vulnerable.'Carol who had been trying unsucessfully to override the locking mechanism of the door from the control panels, suddenly stood stock-still. So abrupt was her action that the other three turned to look at her. She pointed to a diagrammatic map of the ship displayed on a screen before her; a green light was blinking in one section of the plan.'The Sensorites have come aboard,' she explained slowly.'What!' bellowed Ian. Was nothing secure on this ship of incompetents? 'How the h.e.l.l did they get in?''Through the loading bay,' Carol said. 'They have some way of overriding our security systems . . .''Then Barbara and Susan are in even greater danger!' cried Ian, a note of hysteria creeping into his voice. He turned back to Maitland. 'For G.o.d's sake, man, can't you work any faster?''I'm working as fast as I can!' he snapped back. 'It's a very slow process!'The Doctor hurried over to the two men in an attempt to quell the enmity developing between them. Fear and panic were beginning to take hold of them again: fear for themselves; fear for Barbara and Susan; fear of whatever lay behind the locked door. If they allowed that fear to gain the upper hand the Sensorites would have won.Ian began to pound uselessly on the door, calling out Barbara and Susan's names.Barbara looked imploringly into John's tear-stained face. 'All we want you to do is open the door,' she pleaded. 'No!' John was adamant. 'I'll protect you.' This is madness, thought Barbara. It was as if John, having at last found someone he could trust, stubbornly wanted to keep them with him forever. Or was that all there was to it. . .?Susan continued the argument: 'But please, John: our friends are out there.''No - no, they're not. They're dead-all dead,' the deranged astronaut claimed, like a sulky child telling the most terrible lies to keep his new-found friends with him.'But we were with them just a while ago,' Barbara insisted, and then stopped as John doubled up in pain and fell to the floor, his hands clutching at his temples.She was instantly at his side. 'What is it, John?' she asked.But John did not hear her. Instead he looked up, past her and Susan, a glazed look of terror in his eyes. 'Frighten them?' he asked some invisible presence. 'No, I can't do that. Nononono . . .'he sobbed.Barbara tried to comfort him and cast a questioning look at Susan, who was kneeling down beside them. 'Somebody's talking to him - inside his head,' she explained.John continued his tortured conversation with the unheard voice: 'No, don't force me ... I won't do it. . .' His knuckles turned white as he pressed ever harder at his head, trying to shut out the dreaded insistent voice which had haunted him for so long. As he did so, Barbara held him tightly in her arms, mentally willing him to win his struggle.Slowly his sobbing subsided and he looked up into Barbara's eyes. 'They wanted me to frighten you - but I wouldn't,' he boasted. 'I didn't give way.'Barbara stroked his hand gratefully. 'We're not afraid, John,' she told him, 'not now that we have you to protect us.''Barbara's right,' Susan rea.s.sured him. 'We'll look after each other. That's what friends are for.''Friends?' asked John, and Barbara and Susan nodded. 'Friends . . .' he repeated the word so contentedly that Susan half-expected him to put his thumb in his mouth and suck it. Then he sat bolt upright and shouted out an oath of defiance to his unseen a.s.sailants. 'No! They are my friends!'Not far from the cabin in which Barbara, Susan and John huddled, a pair of alien figures walked slowly and purposefully through the ship's interconnecting pa.s.sageways.Occasionally they stopped and looked around, as if trying to sense the location of the two girls and their tormented charge. After a brief pause they would resume their steady pace.So synchronised were their silent footsteps that one would have been forgiven for thinking, in the half-light, that they were robots rather than creatures of flesh and blood. They moved remorselessly down the corridors, their eyes fixed straight ahead, apparently unaware of anything but their quarry.Throughout their progress they did not exchange one single word with each other.'Barbara, I've got an idea.'Barbara looked enquiringly at her former pupil who had been pacing about the cabin for some time, increasingly disturbed by the power which the Sensorites seemed able to exercise over John's mind.'John's quiet now,' she said, 'but we can't be sure that the Sensorites won't make him help them - and attack us. Look, if they can use their brains, why can't we use ours?''To defend John, you mean?' Barbara asked, looking down pityingly at him. He was crouched in a corner of the room, rocking to and fro with his hands clasped firmly around his knees.'And ourselves,' Susan stressed. 'Grandfather and I were once on a planet called Esto. The plants there used thought transference to communicate amongst themselves. If you stood in between two of them they sent up a sort of screeching noise. Grandfather said it was because they were aware of another intelligent mind.''Breaking in on their conversation?' asked Barbara. 'And blocking it?''Exactly!' I thought that if we both tried together, our combined thoughts might be enough to -''The Sensorites!' cried John, his face suddenly tense again and his eyes wild with terror. 'They're near us now!''This is our chance!' urged Susan. 'We must both think of the same thing at the same time.''Think what?' asked Barbara. ' "We defy you." Something like that?''Yes! We must concentrate very hard. Ready?'Barbara nodded: 'All right then: when I count to five. One. . .'(In the pa.s.sageway outside the Sensorites stopped, and nodded at each other in silent agreement. . .)'. . . Two. . .'(One of the aliens took from a side pouch a strange multi-wired device. It looked rather like a small tennis racquet and seemed to be made out of ivory. He held it up at arm's length and pointed it at the locked door leading to the cabin . . .)'. . . Three. . .'(The device began to hum slightly, as it emitted a beam of invisible energy . . .)'. . . Four. . .'(Slowly the cabin door began to open . . .)'. . . Five. Now, Susan, now!'We defy you. We defy you. We defy you!(In the pa.s.sageway the two Sensorites crumpled to the floor, unable to withstand Barbara and Susan's combined act of mental resistance. They writhed in agony, holding their heads as though they were about to burst. Like fish out of water their limbs jerked this way and that as they lost all control over their environment.)We defy you. We defy you. We defy you!Exhausted with her mental struggle Susan fainted into Barbara's arms, who lowered her to the ground. After a few minutes Barbara turned around to see the door of the cabin open wide - to reveal an anxious Ian and Maitiand who had broken through the main door and had at last found their companions.The tension finally broken, Barbara rushed sobbing into Ian's arms.Some time later and reunited with the Doctor and Carol, Barbara and Susan were recovering in the crew lounge just off the flight deck. Maitiand and Ian had taken John to his former quarters where he was now sleeping peacefully. When the two men returned to the flight deck it was to a council of war.The Doctor was looking thoughtfully at his granddaughter who was stretched out on a sofa sipping at a drink of protein concentrate.'It might be possible for Susan's thoughts to reach out to the Sensorites,' he surmised.'So we really can resist and fight them?' asked Carol.'And communicate with them!' added the Doctor pertinently.'I heard hundreds of voices in my head, Grandfather,' Susan said, gently ma.s.saging her forehead.'And that was a very dangerous thing to do,' chided the old man. 'Because you were strong-willed and without fear they couldn't harm you. Whereas our friend John. . . How is he?' he asked as Ian and Maitland walked onto the flight deck.'He's resting now, but he looks so old,' answered Maitland. 'Did you know his hair was almost completely white?'The Doctor raised himself to his full height and glared down at Maitland with a look usually reserved for fools and pompous officials. 'There's nothing wrong with that,' he declared, stroking his own silver mane.'In a man of thirty, Doctor?' Maitland threw up his hands in despair. 'What have the Sensorites done to him? What do they want from us?''Doctor,' began Ian, 'John muttered something to me just before he pa.s.sed out: it sounded like "the dreams of avarice".' The Doctor shrugged his shoulders, unable to guess the significance of the remark, and urged Ian to continue. 'On Earth we have a saying: "rich beyond the dreams of avarice" . . .' Ian warmed to his theme. 'John was the ship's mineralogist, wasn't he? I think he discovered something the Sensorites wanted kept secret. That's why he's had the worst of it: the Sensorites silenced him and kept Carol and Maitland prisoners above their planet.''I see . . . and now they're trying to do the same to us by taking the lock of the TARDIS . . .' The Doctor studied Ian with reluctant admiration, and rubbed his hands with glee. 'Chesterton, my boy, I do believe you've hit on the answer!'Not far away in another part of the ship, the two Sensorites had now recovered from their mental attack. They talked to each other in hushed voices. One of them held a white disc to his forehead.'I have communicated with the First Elder,' he said. 'He says he is interested in the human voice which said "we defy you".''These Earth-creatures which are newly arrived seem to possess more intelligence than the others. We cannot control their minds as easily . . .'His companion hesitated a moment, using the ivory disc to communicate with his home planet thousands of miles away. Then he continued: 'It is because they have less fear of us. We are to stay here and watch and listen to them closely. If they try to attack us with force we are to summon our Warriors - and destroy them.'On the flight deck the time-travellers and Maitland and Carol were gathered around a spectograph which was located in a small alcove near the navigation console. It was here, Carol explained, that John was first attacked by the Sensorites while he was making a routine survey of the Sense-Sphere.With his gla.s.ses perched on his beak-like nose, the Doctor studied the read-outs from the spectrograph: long strips of light sensitive paper patterned with vertical bands of colour. By examining the colour and width of the bands, which were caused by the radioactive emissions of certain minerals, it was possible to determine the exact geological composition of any planet. Unable to spot anything out of the ordinary, he pa.s.sed the print-out over to Ian who looked at it closely before reaching the same conclusion: the Sense-Sphere was a perfectly ordinary planet, circling a perfectly ordinary star. He handed the results back to the Doctor.'It's no use,' Maitland told them. 'I studied the readings whenever I could, but there didn't seem to be anything which could be of any importance. The Sense-Sphere is a completely average planet with a slightly larger land ma.s.s than usual-but that's all.''Yes, yes, I suppose you're right. You know I was so sure . . .' sighed the Doctor, thoughtfully rubbing his chin. Finally he admitted defeat and tossed the graph onto an adjacent work table. As it fell his eyes caught the bands of colour at a different angle. He immediately s.n.a.t.c.hed the read-out back and excitedly showed it to the others.'Look! I knew it was there all the time! But it's all diffused and mixed up with the other elements!' He pointed enthusiastically at several thin bands on the graph: 'There -and there-and there!''But what is it, Doctor?' asked Ian.'Molybdenum!'Barbara looked blankly at the old man and pressed for a further explanation.'It's used as an alloy in steel,' Maitland said. 'It's able to withstand extremely high temperatures. It's a major part of all our s.p.a.cecraft: most of the galaxy's s.p.a.ce fleets would be useless without it.''Precisely!' exclaimed the Doctor. 'Iron melts at 1539 degrees Centigrade-but molybdenum melts at 2622 degrees Centigrade. It's the perfect alloy for travel in hyper s.p.a.ce. In terms of usage it's one of the most precious minerals in the galaxy. No wonder John was excited: that planet down there must be full of it. It's a veritable gold mine!'('They know too much.' 'Agreed. We must strike now.')The attacks which they had experienced before were nothing compared to what hit Maitland and Carol as the Doctor spoke those words, and in so doing finally revealed the secret of the Sensorites.The strength of this offence was almost tangible: the astronauts collapsed onto the floor, their faces wracked with unbearable pain and horror. The Doctor and Susan bent over their jerking bodies, powerless to protect the astronauts from a force which seemed to be almost physical rather than mental.Carol screamed out in agony as the Sensorites took possession of the fear already within her mind and magnified it a thousand fold; Maitland flailed about like a helpless child, scared half to death.Ian looked down grimly at the two pitiful victims of the Sensorites' power. He was sick and tired of just sitting around, doing nothing, waiting for the Sensorites to take over their minds one by one. Leaving the Doctor and Susan to offer what comfort they could to the astronauts, he grabbed Barbara's arm and headed for the exit: 'Come on, Barbara. Let's find them.' It was time to face their fear.The most basic fear of all is the fear of the unknown, and as Ian and Barbara walked down the dim pa.s.sageways and half-lit corridors of the ship, past the all-enveloping inky black shadows, they relived all their childhood fears. Once again they were little children, climbing the stairs in the dark, not knowing what manner of unearthly horror awaited them at the top.The slightest sound they heard was amplified, perverted and transformed into the malevolent hissing of a goblin, or the mocking laughter of a devil. Behind every half-opened door an evil spirit was lurking, and the bogey-man made ready to leap out at them from any darkened corner.But these evil spirits and bogey-men were hideously -cruelly - real, and as they made their slow and careful way they were grateful for the other's hand in theirs.Ian paused by a closed door and listened. Nothing. Cautiously he pushed it open and peered through into an adjoining room. It seemed to be some sort of rest area. Motioning Barbara to follow, he led the way through the room until they came to a door at the far end.It was slightly ajar.'Where do you suppose this leads?' whispered Barbara.'Let's find out.' Ian noticed Barbara's trembling lips. 'You needn't come if you don't want to,' he said.'Nonsense,' she replied, smiling for his benefit. She knew that Ian was just as terrified as she was, but there was no going back for either of them. Whatever lay in that terrible s.p.a.ce beyond the door had to be faced; and they needed each other now as never before.The door swung open easily and the teachers pa.s.sed into the room beyond.It seemed to be a storage area, piled high with crates and boxes, and lined with aisles of shelves containing discarded equipment: perfect cover for hidden enemies.Suddenly Ian felt Barbara's free hand grab his arm, her nails almost digging into his flesh. She nodded over to the far corner of the room.There, standing just out of the shadows, waiting patiently for Ian and Barbara, were two unearthly creatures.They had found the Sensorites.

The Unwilling WarriorsIn appearance the Sensorites were exactly the same. To Ian and Barbara they seemed no less than a set of ghastly twins.Their bone-white heads were bulbous, with an enlarged cranium tapering down to a small v-shaped chin covered with wisps of snow-white whiskers. These rose on either side of their jaws to end just above their tiny cat-like ears which were covered with a fibrous membrane. Along their temples were two ice-blue veins which pulsed rhythmically as the Sensorites regarded the humans before them with an almost Oriental inscrutability.Their eyes were their most disquieting feature. Small, dark and lidless, they betrayed no emotion whatsoever, making it impossible for Ian and Barbara to know their thoughts or intentions. They were surmounted on prominent cheekbones which, together with their whiskers, gave the Sensorites an aged, wizened appeara