Astounding Stories, April, 1931 Part 40

I stepped confidently out of the jungle into the clearing below the splendid opalescent fall of fire--and threw myself backward in trembling panic. A flaming crimson ray cut hissing into the towering mushrooms above my head.

Mildred's confidence that the crabs would all gather at the ringing of the gong had been mistaken. The two guards had been waiting at the foot of the ladder, their flaming heat-rays ready for use.

As I dived back into the jungle, I heard two quick reports of the rifle. I scrambled awkwardly to my feet, beneath the heavy pack. Ray stood alert beside me, the smoking rifle in his hand. The giant crabs had collapsed by the foot of the ladder, in grotesque and hideous metal-bound heaps of red sh.e.l.l and twisted limb. Blood was oozing from a ragged hole in the head of each.

"Glad they were here," Ray muttered. "I wanted to try the gun out on 'em. They're soft enough beneath the sh.e.l.l; the bullet tears 'em up inside. Let's get a move on!"

He sprang past the revolting carca.s.ses. I followed, holding my nose against their nauseating, charnel-house odor. We scrambled up the metal ladder.

As we climbed, I could hear the haunting melody of Mildred's wordless song coming faint across the distance. Once I glanced back for a moment, and glimpsed her tiny white figure above the black water, with the thousands of green antennae rising in a luminous forest about her.

We reached the top of the cliff, where the opalescent river plunged down in the flaming fall. Ray chose convenient boulders for shelter and quickly we flung ourselves flat. Ray replaced the fired cartridges in the rifle and leveled it across the rock before him. I unslung the binoculars and focussed them.

"Watch 'em close," Ray muttered. "And tell me when to shoot."

The black lake lay below us, with the weird city of sapphire cylinders on its floor. I got the gla.s.ses upon Mildred's white form. Soon she dived from the turquoise pedestal, swam swiftly ash.o.r.e and vanished in the vivid fungous jungle. The wavering green antennae vanished below the water; I watched the crabs swimming away. Some of them climbed out of the water and lumbered off in various directions.

In fifteen minutes the slender white form of Mildred appeared at the foot of the ladder. She sprang over the dead crabs and scrambled nimbly up. Soon she was halfway up the face of the cliff, and there had been no sign of discovery. My hopes ran high.

I was sweeping the whole plain with the binoculars, while Ray peered through the telescopic sights of the rifle. Suddenly I saw a giant crab pause as he lumbered along the edge of the black lake. He rose upright; his shining green antennae wavered. Then I saw him reaching with a k.n.o.bbed claw for a slender silver tube slung to his harness.

"Quick! The one by the lake! To the right of that ca.n.a.l!"

I pointed quickly. Ray swung his gun about, aimed. A broad red beam flashed from the tube the thing carried, and fell upon the cliff. The report of Ray's rifle rang thunderously in my ears. The red ray was snapped off abruptly, and the giant crab rolled over into the black water of the lake. Half a dozen of the huge crabs were in sight. They all took alarm, probably having seen the flash of the red ray. They raised grotesque heads, twisted stalked eyes and waved green antennae.

Some of them began to raise the metal tubes of the heat-ray.

"Let's get all there are in sight!" Ray muttered.

He began firing regularly, with deliberate precision. A few times he had to take two shots, but ordinarily one was enough to bring down a giant crab in a writhing red ma.s.s. Three times a red ray flashed out, once at the girl clambering up the ladder, twice at our position above the precipice. But the intense color of the ray announced its source, and Ray stopped each before it could be focussed to do damage.

I looked over at Mildred and saw that she was still climbing bravely, a little over a hundred feet below.

Then the great red crabs began to climb out of the water, heat-ray tubes grasped in their claws. Ray fired as fast as he could load and aim. Still he shot with deliberate care, and almost every shot was effective.

Intense, ruby-red rays flashed up from the lake sh.o.r.e. Twice, one of them beat scorchingly upon us for a moment. Once a rock beside us was fused and cracked with the heat. But Ray fired rapidly, and the rays winked out as fast as they were born.

He was powder-stained, black and grimy. The heat-ray had singed his clothing. He was dripping perspiration. The gun was so hot that he could hardly handle it. But still the angry bark of the rifle rang out, almost with a deliberate rhythm. Ray was a fine shot in his youth on his father's Arizona ranch, but his best shooting, I think, was done from above that cascade of liquid fire, at the hordes of monster scarlet crabs.

Mildred scrambled over the edge, unharmed. Her breast was heaving, but her face was bright with joy.

"You are wonderful!" she gasped to Ray.

We seized the packs and beat a hurried retreat. A crimson forest of the heat-rays flashed up behind us, and flamed upon the black walls and roof of the cavern until glistening lava became incandescent, cracked and fused.

We were below the line of the rays. Quickly we made the bend in the cavern and followed at a halting run up the path beside the shimmering river of opalescent light. Before us the torrent of fire fell in a magnificent flaming arc from the roof.

We rounded the pool of lambent milk of flame, pa.s.sed the roaring torrent of coruscating liquid radiance and reached the ladder in the square, metal shaft. "If we can get to the top before they can get up here, we're safe," Ray said. "If we don't, this shaft will be a chimney of fire."

In the haste of desperation, we attacked the thousand-foot climb. I went first, Mildred below me, and Ray, with the rifle, in the rear.

Our heavy packs were a terrible impediment, but we dared not attempt to go on without them. The metal rungs were four feet apart; it was no easy task to scramble from one to the next, again and again, for hundreds of times.

It must have taken us an hour to make it. We should have been caught long before we reached the top, but the giant crabs were slow in their lumbering movements. Despite their evident intelligence, they seemed to lack anything like our railways and automobiles.

The cold gray light of the polar sky came about us; a dull, purple-blue square grew larger above. I clambered over the last rung, flung myself across the top of the metal shaft. Looking down at the tiny fleck of white light so far below, I saw a bit of red move in it.

"A crab!" I shouted. "Hurry!"

Mildred was just below me. I took her pack and helped her over the edge.

Red flame flared up the shaft.

We reached over, seized Ray's arms and fairly jerked him out of the ruby ray.

The bitterly cold wind struck our hot, perspiring bodies as we scrambled down the rungs outside the square metal shaft. Mildred shivered in her thin attire.

"Out of the frying pan into the ice box!" Ray jested grimly as we dropped, to the frozen plain.

Quickly we tore open our packs. Ray and I s.n.a.t.c.hed out clothing and wrapped up the trembling girl. In a few minutes we had her snugly dressed in the fur garments that had been Major Meriden's. Then we got into the quilted garments we had made for ourselves.

The intensely red heat-beam still flared up the shaft. Ray looked at it in satisfaction.

"They'll have it so hot they can't get up it for some time yet," he remarked hopefully.

We shouldered our packs and set out over the wilderness of snow, turning our backs upon the metal-bound lake of fire, with the tall cone of iridescent flame rising in its center.

The deep, purple-blue sky was clear, and, for a rarity, there was not much wind. I doubt that the temperature was twenty below. But it was a violent change from the warm cavern. Mildred was blue and shivering.

In two hours the metal rim below the great white cone had vanished behind the black ice-crags. We pa.s.sed near the wreck of Major Meriden's plane and reached our last camp, where we had left the tent sledge, primus stove, and most of our instruments. The tent was still stretched, though banked with snow. We got Mildred inside, chafed her hands, and soon had her comfortable.

Then Ray went out and soon returned with a sealed tin of oil from the wrecked plane, with which he lit the primus stove. Soon the tent was warm. We melted snow and cooked thick red soup. After the girl had made a meal of the scalding soup, with the little golden cakes, she professed to be feeling as well as ever.

"We can fix our plane!" Ray said. "There's a perfectly good prop on Meriden's plane!"

We went back to the wreck, found the tools, and removed an undamaged propeller. This we packed on the sledge, with a good supply of fuel for the stove.

"I'm sure we're safe now, so far as the crab-things go," he said. "I don't fancy they'd get around very well in the snow."

In an hour we broke camp, and made ten miles of the distance back to the plane before we stopped. We were anxious about Mildred, but she seemed to stand the journey admirably; she is a marvelous physical specimen. She seemed running over with gay vivacity of spirit; she asked innumerable questions of the world which she had known only at second-hand from her mother's words.