Wandl the Invader Part 11

"There might be a way of sighting them," Drac put in.

"I'll try the Zed-ray," I suggested. "Drac and I have it corrected.

But I doubt if it would penetrate the sort of invisibility this enemy would use."

Grantline nodded. "Or the Benson curve-light. You think the ship went behind the Moon? Or landed on the Moon?"

"It could have done either. Has Waters still got contact with the Earth? Have they seen it?"

"No."

I made a sudden decision. It would take us two hours at least to make a careful scanning with the Zed-ray; and to take an elaborate series of spectro-heliographs of the Moon's surface, which might show the enemy vessel if it had landed there, was a laborious process.

After brief thought, I discarded the idea. "We'll go to the helio room," I told Grantline. "I'm going to try the Benson curve-light."

Grantline and I left the turret, heading along the catwalk under the gla.s.site dome toward the helio cubby where the rotund, middle-aged Waters was in charge. It made my heart sink to think of the helio room. Snap should have been there.

We crossed the transverse catwalk. The superstructure roof was under us. Farther down, the narrow decks showed with Grantline's men grouped at the firing ports, where his weapons were mounted and ready. As I saw those grouped men loitering on the deck, waiting for me to give them a sighting, I prayed I could do so; and yet there was the shuddering fear that the first blast would bring death to Anita.

Waters met us at the door of his cubby. His face was red; he mopped the perspiration from his bald head. "I'm so glad you came! Will you want the Benson-light? I say, I've lost connection with the Earth. I had the Washington transmitter. Five minutes ago they sent me a flash of the Mars and Venus news. They both sent ships, out."

He gasped for breath, then added in a rush: "Both the Mars and Venus ships were destroyed and the enemy escaped!"

Grantline and I gasped with horror.

"Destroyed?" I said. "How?"

Waters did not know. The news came; then, immediately after, the Washington transmitter changed its wavelength and he lost connection.

"But why, in heaven's name, man, didn't you ring and tell us?"

Grantline demanded. "Destroyed--only that! Just destroyed."

"I was afraid to leave my instruments," Waters said. "How could I tell? I might be able to renew connections with Washington any minute.

Come on in. Do you want to try the Benson curve-light, Mr. Haljan?"

"Yes," I said. "I do." We entered the dim helio cubby. "See here, Waters, what about the projectile that ascended from Earth last night?

Did the Washington observatory report what happened to it?"

"No, not a word. They lost it, evidently."

Our 'scopes on the _Cometara_ had not been able to locate the projectile. The large instruments of Earth had lost it. Was that because, with tremendous velocity, it had sped directly for the new planet out beyond Mars?

Or, with some form of invisibility, might it be close to us now, just as the lurking ship might be somewhere around here?

From the little circular helio cubby, perched here under the dome like an eagle's nest, I could see down all the length of the ship, and out the side ports of the dome to the blazing firmament. The Sun, Moon and Earth and all the starfield were silently turning as Drac swung us upon our new course.

Waters bent over the projector of the Benson curve-light, making connections. The cubby was silent and dim, with only a tiny spotlight where Waters was working, and a glow upon his table where his recent messages from Earth were filed. Grantline and I glanced at them.

Panic in Greater New York, Grebhar, and Ferrok-Shahn. The three strange beams which the enemy had planted on Earth, Venus and Mars still remained unchanged. I could see them now plainly from the helio cubby windows, great shafts of radiance sweeping the firmament.

Waters straightened from his task. "That will do it, Mr. Haljan." He met me in the center of the cubby. "When you locate the enemy, do you think they'll destroy us as they did those other ships?"

Grantline laughed grimly. "Maybe so, Waters. But let's hope not."

Fat little Waters was anything but a coward, but being closed up here all these hours with a stream of dire messages from Earth had shaken him.

"What I mean, Mr. Grantline, is that prudence is sometimes better than reckless valor. The _Cometara_ is no warship. If Earth had sent an international patrol vessel...."

Grantline did not answer. He joined me at the Benson projector. "Can we operate it from here, Gregg, or will you mount it in the bow?"

"From here. Drac's swinging. When he's on the course I gave him, I can throw the Benson-ray through the bow dome-port. Waters, you're all done in. Go below and sleep awhile."

But he stood his ground. "No, sir; I don't want to sleep."

"We've had ours," said Grantline. "We'll call you if anything shows up."

We sent Waters away. "Ready, Gregg?"

"Yes. I've got the range."

The coils hummed and heated with the current, and in a moment the Benson curve-beam leaped from the projector.

The Benson curve-light was similar to an ordinary white searchlight beam, except that its path, instead of being straight could be bent at will into various curves--hyperbola, parabola, and for its extreme curve, the segment of an ellipse--gradually straightening as it left its source. It was effective for police work, with hand torches for seeing around opaque obstructions. It had also another advantage, especially when used at long range: the enemy, when gazing back at its source, would under normal circ.u.mstances conceive it to be a straight beam and thus be misled as to the location of its source. Or even realizing it to be curved, one had no means of judging the angle of the curve.

A narrow white stream of light, it flung through our window-oval, forward under the dome and through the bow dome bullseye, into s.p.a.ce.

I saw the men on the deck spring into sudden alertness with the realization we were using it. The bow lookout on the forward observation bridge crouched at his 'scope-finder to help us search.

From the control turret came an audiphone buzz, and Drac's voice: "Am I headed right? The swing is almost completed."

"Finish the job and don't bother me now."

I bent over the field-mirror of the projector. On its glowing ten-inch grid the shifting image of my range was visible, a curving, brilliant limb of the Moon, with the sunlight on the jagged mountain peaks; everywhere else was the black firmament and the blazing dots of stars.

Grantline crouched beside me. "I'll work the amplifiers. Going to spread it much, Gregg?"

"Yes. A full spread first. We're in no mood for a detailed narrow search."

I gradually widened the light. Three feet here at its source, it spread in a great widening arc. With the naked eye we could see its white radiance, fan-shaped as an edge of it fell upon the Moon. And though optically it was not apparent, the elliptical curve of it was rounding the Moon, disclosing the hidden starfield to our instruments.

"Nothing yet?" I murmured.

"No."

"I'll try a narrower spread and less curve."

Grantline was searching the magnified images on the series of amplifier grids. There was nothing. For an hour we worked; then suddenly Grantline cried: "Gregg! Wait! Hold it!"

I tensed, stricken. I held the angle and the spread of light steady.

"Two seconds of arc, east; try that. The d.a.m.ned thing is shifting." He gripped me. "It's at the eastern edge of the field; it shifts off. It must be in rapid motion."