I think that we had all half expected to see some evidence of life and civilization on this strange world, some building or group of buildings, at least. But there was none such. Beneath us lay only a smooth black plain, extending from horizon to horizon, devoid of hill or stream or valley, in so far as we could see, unnaturally smooth and level. And as we dropped nearer, ever nearer, the surprise we felt rapidly intensified, until when at last we hung motionless a hundred feet above the surface of this world exclamations of utter astonishment broke from us. For seen thus near, the surface of this mighty planet was as utterly smooth and level as it had seemed from high above, a black, gleaming plain without an inch-high elevation or depression, an inconceivably strange smooth expanse of black metal, that stretched evenly away in every direction to the horizon, smoothly covering this colossal world.
We looked at each other, a little helplessly, then down again toward the smooth and gleaming surface below. In that surface was no visible opening, no sign of joint or crack, even, nothing but the smooth blank metal. Then with sudden resolution I thrust forward the levers in my hands, sent our cruiser racing low across the surface of the giant, metal sheathed planet, while we gazed intently across that surface in search of any sign that might explain the enigma of its existence. On we sped, while beneath us flashed back the smooth metal plain, mile after endless mile. Then, gazing ahead, my eyes suddenly narrowed and I raised a pointing hand. For there, far ahead, I had glimpsed an opening in the gleaming surface, a round black opening that was resolving itself into a vast circular pit as our cruiser raced on toward it.
Nearer and nearer we flashed toward it, with Sar Than and Jor Dahat beside me gazing forward, their interest as tense as my own. And now we saw that the pit was of gigantic size, its circular mouth all of five miles in diameter, and that from its center there drove up toward the zenith a flickering beam of pale and ghostlike white light, so pale as hardly to be visible, a livid white ray that stabbed straight up toward the fires of the nebula far above. We were very near to the pale beam, now, flashing above the huge pit straight toward it. I had a glimpse of the great pit's perpendicular black metal walls, dropping down for miles into depths inconceivable, of something in those dusky depths that burned like a great white star of light, and then Jor Dahat suddenly uttered a choking cry, flinging an arm out toward the livid ray before us.
"That ray!" he cried. "It's not light-it's force! The nebula-stop the ship!"
At that cry my hand flew out to the levers, but a moment too late. For before I could throw them back, could slow or stay our progress, we had raced straight into the great pale beam. The next moment there came a terrific crash, as though we had collided with a solid wall; our ship rocked drunkenly in midair for a single instant, and then was whirling crazily downward into the depths of the mighty pit below us.
III
My only memory now of that mad plunge downward is of the pilot room spinning about me, and of the whistling roar of winds outside caused by the speed of our fall. The shock of our collision had apparently silenced our generators, and it was moments before I could struggle up to the controls and make an effort to start them. I jerked open the switches and there came a hum of power from beneath; but the next moment with a jarring, grinding shock our cruiser had met the great pit's floor, flinging us once more to the floor.
For a moment we lay motionless there, and in that moment I became aware of sounds outside, soft rustling sounds that were hardly audible, as of soft-footed creatures moving about. The second shock had again silenced the vibration-mechanism, which I had started the moment before our crash, but I had no doubt that it was only that last-minute action on my part that had slowed our fall enough to save our ship and ourselves from annihilation. Now, staggering to my feet, I reached for the switch of the pilot room's little emergency door, sending it sliding back, admitting a rush of warm, fresh air, and then with my two companions behind me stared dazedly forth.
Our battered cruiser was resting now on the great pit's floor, a vast circular plain of smooth metal five miles in diameter, enclosed on all sides by vertical cliffs of gleaming metal that loomed for miles above us. A dusky twilight reigned here at the great shaft's bottom, but we saw now that that bottom was covered with countless great machines, enigmatic, shining mechanisms that covered the pit's floor completely except for a round clearing at its center, at the edge of which our cruiser rested. From each of the massed machines around us ran a slender tube-connection, and all of these tubes, thousands in number, combined to form a thick black metal cable which led into a huge object at the clearing's center. This was a giant squat cylinder of metal, its height no more than fifty feet but its diameter a full thousand, into the side of which the thick black cable led and whose upper surface shone with a vast brilliant white light that half dispelled the shadows here at the vast pit's bottom. It was from this brilliant upper surface of the cylinder that there sprang upward the great livid ray, a flickering beam of pale light that stabbed straight up toward the glowing fires of the nebula far above.
It was not on the great cylinder or on the massed machines around us, though, that our eyes first rested, but on the shapes, the creatures, who had gathered about our cruiser and stood before us. They were creatures of surpassing strangeness and horror, even to ourselves, unlike in form as we were. Each of them was simply a shapeless mass of plastic white flesh, several feet in thickness, a formless thing of pale flesh without limbs or features of any kind, the only distinguishing mark being a round black spot on the body or mass of each. A dozen or more of them had gathered before us, a dozen shapeless masses of flesh resting on the smooth metal floor there, each with the black spot on his body turned up toward us like some strange eye, which, we knew instinctively, it in reality was.
As we watched them in horror, we saw one of them suddenly move toward us across the smooth metal. A limbless mass of flesh, he glided across the level floor as a snake might glide, the flesh of him flexing and twisting to bear him smoothly forward. Just beneath us he stopped, and there was a moment of tense silence while the whole scene impressed itself indelibly on my brain-the vast, metal-walled pit, the great ghostly ray that clove up through its shadowy dusk toward the nebula far above, the weird white masses of flesh before us. Then up from the creature below us there shot a long, slender arm, an arm that formed itself out of the flesh of his-body-like the pseudopod of a jellyfish, reaching swiftly upward toward us.
That sight was enough to break the spell of horror that had held us, and with a strangled cry I fell back from the door, reached toward the controls to send our ship slanting up out of this place of horror. But as I did so there came a shout from my two companions, and I whirled around to see a half-dozen pseudopod arms reach in through the open door, and then by that grip six or more of the weird creatures had drawn themselves up into the pilot room, and were upon us.
I felt cold, boneless arms twine swiftly around my neck and body, struck out in blind rage against the twisting masses of flesh that held me, and then felt my arms gripped also, felt myself being carried toward the door. The next moment I had been swung smoothly down to the metal floor below and released there, standing panting with my two companions while our strange captors surveyed us. Several of them held in pseudopod arms little square boxes of metal which they held toward us, and one of them, as if for an object lesson, turned his toward a little pile of metal bars not far away, and touched a switch in its handle. Instantly a narrow little jet of what resembled thick blue smoke sprang out of the thing toward the pile of bars, and as it touched them I saw them instantly crumbling and disintegrating like sugar in water, disappearing entirely in a moment. The meaning of the action was plain enough, and with a half-dozen of the deadly things trained full upon us we gave up all thoughts of a dash back to the cruiser.