The moment that followed, as our ships slowed and hung motionless, with doom ahead and doom behind, was one in which the death that we had dared a score of times since reaching the comet loomed full before us. The cube-ships that barred the way ahead, the thousands racing toward us from behind-these were like death's great jaws closing upon us, and for an instant I felt myself surrendering to utter despair. But then, as my eyes dropped downward, toward the ring of outer smaller disk-worlds over which we had been flashing and above which we now hung, a flicker of hope shot through me and I turned swiftly to the speech-instrument.
"Down to those worlds below!" I cried. "There's a chance that we can hide on one of them until we can get out of the comet!"
Instantly, spurred to greater swiftness by our desperate situation, our half-dozen cruisers were slanting sharply down toward one of those revolving disk-worlds. The surface of that world leapt up with terrific speed toward us as we shot recklessly downward, and I sighted cities of pits and streets and mechanisms like that of the central world upon it, cities though that did not cover all its surface as in the central world, but were scattered about it, the rest of the disk-world's surface being a tumbled mass of mighty mountains and chasmed valleys, all of barren dark rock. It was down toward one of these tremendous chasms, near the disk-world's outer edge, that we were heading, every feature of that world's surface lying plain beneath us in the strange white light that bathed all these revolving worlds. Downward into that awful chasm our cruisers shot, and as they did so I glimpsed, high above, a swarm of tiny dark cube-shapes that had halted their pursuit of us, were circling about and dropping lower as though to discover our whereabouts!
Our lives depended on finding some place of hiding in this tremendous-walled chasm, I knew, and as we arrowed down, into its depths, white-lit by the same strange illumination, I gazed swiftly about for some place of concealment. A moment the search seemed hopeless, there being nothing but the chasm's narrow floor of barren rock, its towering jagged rock sides, and then as we shot along its length I sighted a great crack or crevice in one of them, a long, crack-like opening that was large enough to admit our cruisers, and behind which could be glimpsed the dark depths of some great cavernous hollow in the rock.
"Through that crack!" I ordered swiftly, saw Jurt Tul's cruiser move quickly toward it, scraping against the crack's jagged edges as it pushed through into the dark cavern behind. Another of our cruisers followed, and then the rest, one by one, until my own was scraping inside, just as I saw the cube-ships high above dropping toward us, splitting into divisions of a dozen ships each which were slanting down over all the surface of this world in search of us, one of them heading straight toward the great chasm!
As it slanted down toward us I gazed about me, saw that our six cruisers were hanging in a dark, cavernous abyss that seemed to extend far down into the depths of this disk-world. A rocky shelf just inside the crack-opening, though, seemed large enough for us to rest our ships upon; so instantly we brought them to rest there, cutting off the generators whose humming might betray us. Then, as our space-doors opened with a slight inward hiss from the higher-pressure air of the disk's atmosphere, I stepped quickly out, found Jurt Tul and the other cruiser captains beside me, and then we had all suddenly crouched down inside the great crack's edge as a score of the great cube-ships shot down into the white-lit chasm outside.
Peering out from the cavern's dark depths we saw those cubes hanging there, then moving slowly along the chasm's length as though in search of us. Down its length they disappeared and we breathed easier for a moment; then they reappeared, coming to rest on the chasm's floor directly beneath the opening in which we crouched, scarce a half-hundred feet below us. Tensely we watched, saw the doors were opening in those cubes' sides, creatures emerging, the comet-creatures of these strange worlds. And at sight of those creatures even our tense situation could not suppress our gasps. For they were-liquid-creatures! Creatures whose bodies were liquid instead of solid, creatures that were each but a pool of thick black liquid, flowing viscously about, in each of which pools floated two round, white blank disks, great white pupilless eyes.
We saw them flowing forth from out their cubes, saw some whose viscous bodies held what seemed tools or weapons, saw the floating eyes turned this way and that about the chasm, as though in search of us. Then a score of the strange creatures did an incomprehensible thing; they flowed together into a single liquid mass, a great black pool in which floated all their eyes, their liquid bodies mingling together! A moment they remained thus, then had separated, each from the others, and were returning to their cubes.
"Conversing!" whispered Jurt Tul beside me. "It's their method of conversing, of exchanging thoughts-to mingle their liquid bodies one with another!"
I knew the amphibian was right, and shuddered involuntarily at the thing we had seen. The cubes' doors had closed now, and the cubes were lifting upward from the chasm's floor. One, more suspicious apparently than the rest, hovered a moment outside the crack within which we crouched, and we shrank back, suddenly tense, but after a moment's inspection it too had driven up after the others, which passed from sight high above, searching slowly across the disk-world's surface in a strange formation as though following some discussed plan. We breathed easier, then, standing erect, and I turned quickly to Jurt Tul.
"Our only chance is to get out of the comet and wait for the five thousand Patrol cruisers that were to come after us," I told him. "But we can't leave the comet with Gor Han and Najus Nar prisoned in it!"
The great amphibian shook his head. "We could venture back to the comet-city on the central world to attempt to find them," he said, "but in this brilliant white light we'd be seen and destroyed at once."
I was silent, for I knew that it was so, and broodingly I considered that light, whose white illumination filled all the great chasm outside, beating faintly even into the cavern, yet seeming to have no visible source whatever. And then, even as I gazed upon it, that light died! It seemed to gray, to darken, and then had vanished altogether, within a moment, while at the same moment there beat faintly through the air from far away a great clanging note like that of a giant gong. The chasm outside, the world and worlds about us, lay now in dusk, their only illumination the lurid, dark crimson light of the comet's glowing coma, a red dusk that gave to the barren rocky world about us an inconceivably weird appearance.
"That gong!" Jurt Tul was saying. "You heard it? It sounded when the light died-it means that these comet-creatures maintain and regulate their own day and night!"
"That white light," I said; "you mean that it's made by them, turned off for their night?"
He nodded quickly. "It must be. They can use the coma's great electrical energy to produce that light at will, just as they use that energy for their crimson bolts. They must turn if off and on at regular intervals, to produce their day and night, their activity-periods and rest-periods."
"But then we can venture back to the comet-city-back to the central world for Gor Han and Najus Nar!" I exclaimed, and he nodded.
"Yes, but we'd best wait longer, since now the cube-ships' search will be going on, even in this dusk, and we'd have small chance of escaping them."
* * *
For all my impatience I saw the wisdom of Jurt Tul's suggestion and so composed myself to a longer period of waiting. So hour followed hour while we crouched there in the great crack in the chasm's wall. Far above we could see the crimson coma, against which there came and went now and then divisions of cube-ships, still searching for the fugitives who had escaped them. My thoughts turned to Gor Han and to Najus Nar, prisoned in the comet-city, and then to our own predicament. But hours remained now in which the comet might be turned aside, and unless we could escape from it, could meet the five thousand cruisers that were racing toward it from the galaxy and lead them inside, no power in all space and time could turn the comet aside from the galaxy. And I could not, would not, attempt to escape from the comet without having first learned the fate, at least, of Gor Han and Najur Nar.
At last I stood upright, turned to Jurt Tul. "The cube-ships above seem to have slackened their search," I told him, "and now's the time for our venture. We've had hours now of this dusk, and the light of their day may be turned on at any time."
He nodded, then pointed out that his cruiser had been damaged somewhat in the battle over the central world. So that it might not delay us we transferred his crew from it to the others, Jurt Tul entering my own cruiser with me, while the damaged one we left there on the cavern's shelf. Then, after we had closed our space-doors, our cruisers moved gently out of the narrow opening, rising swiftly up over the disk-world from the chasm's depths. That disk-world's surface lay beneath us, now, illumined by the coma's far crimson glow alone, a lurid luminescence that picked out streaks and veins of metal here and there in the jagged rock. It was plain, indeed, that these worlds were meteoric in nature, and had been formed and set spinning in this orderly fashion by the comet-creatures themselves.
For the time, though, we heeded not these things, intent on the scene ahead as our five cruisers shot silently through the lurid dusk toward the central world. Far away, now and then, against the coma's baleful glow, we caught sight of cube-ships moving still restlessly about in search of us, and once a party of these seemed to take up our course, to follow us. These, though, veered away in the dusk behind us, and then in a moment more we had passed above that ring of outer disk-worlds, and Jurt Tul and I, gazing forward from the control room, could make out the great, motionless mass of the central world beneath us, the world that was our goal. No light gleamed upon its darkened surface, lying in a weird picture there in the coma's crimson dusk. As we shot down toward it I saw vaguely in that dusk the great, massed machines here and there, the smooth streets, the enigmatic pits about them, and then the great clearing at the flat world's center.
"That clearing!" I whispered to Jurt Tul. "It was near it that Gor Han's and Najus Nar's ships fell-we'll land near it."
Our cruisers now were arrowing smoothly down toward one of the broader streets some distance from the clearing, since we could see now that on all the world below there moved only an occasional dark liquid-creature, the throngs we had seen before having unaccountably disappeared. Here and there above it moved a cube-ship, but none of these glimpsed us through the dusk, and in a moment more our cruisers had landed gently upon one of the smooth streets. There Jurt Tul and I swiftly stepped forth, for we had decided that we two alone could explore the comet-city more silently than a larger party. At once the cruisers swept back to wait for us in the dusk above, ready to make an attempt to escape from the comet should we be discovered. Then the amphibian and I moved swiftly along that silent street toward the great central plaza.
On each side of us loomed great massed machines at which we merely glanced as we hurried on. As we passed one of the pits that had puzzled me, though, I stepped to its edge, gazed down, then shrank back in horror! For in that shallow, smooth-walled pit there lay what seemed a great pool of thick black liquid unguessably deep, a pool formed by the liquid bodies of hundreds, perhaps thousands, of the liquid comet-creatures that had poured into it! I could glimpse the white eyes floating in it, here and there, but there was no other sign of life or movement in the mass, and as I saw that and thought of the rows upon rows of other similar pits that extended across the comet-city, I understood, and turned swiftly to Jurt Tul.
"Sleeping!" I exclaimed. "In their night, their rest-period, they must all pour into these pits together-mingling their liquid bodies!"
Swiftly we shrank back from the great pit, moved on toward the clearing. Massed machines, grim and gleaming and towering, loomed all about us, half seen in the crimson dusk, and we passed scores of the great, liquid-filled pits in which slept the comet-creatures, but there was no sign of our two friends. Had they been destroyed? Dread filled me, dread intensified because I realized that soon the cornet-creatures would be ending their night, and turning on their white light of day, discovering us there on their world. Then, abruptly, Jurt Tul jerked me back from my forward stride, crouching silently with me upon the street, behind a mass of great mechanisms. For out of the darkness to our right had come the sound of something moving, something approaching us! Silently, tensely, we crouched there, and saw a dark shape moving stealthily down one of the branching streets toward us. It had turned from us, toward the great clearing ahead, when unexpectedly, as we crouched, my arm had brushed against the great machine beside us and touched something that moved beneath the touch, with a loud metallic clicking. Instantly that dark shape ahead had turned, and then was leaping straight toward us!
Before we could rise to meet it the rush of it had borne us downward, and as it did so I realized with a wild thrill that it was not a liquid-creature but a great and warm and fur-covered being, many-limbed, that had attacked us! Even as that fact penetrated into my brain our struggle had abruptly ceased, and we were staggering erect, Jurt Tul and I grasping the other.
"Gor Han!" I exclaimed. "It's you!"
The great Betelgeusan's fur-covered body and strange features were clearly visible to us now as he grasped our own hands, his eyes wide.
"Khel Ken! Jurt Tul!" he whispered. "I thought you destroyed in the battle!"
"We hid-escaped," I explained to him swiftly. "But you, Gor Han-how have you escaped? — and where's Najus Nar?"
He was silent a moment, then suddenly dragged us down into the deeper shadow of the great machines beside us. There, with the lurid light of the coma on his strange features, he spoke swiftly.
"Najus Nar is-living," he said, "but I will tell you what came upon us. You saw our ships fall in the battle over the city here, crashing down into it. At once these liquid comet-creatures were upon us, most of our crews having been killed in the crash, and but a few were left; but these being injured, too, they annihilated them with crimson bolts before we realized it, leaving but Najus Nar and myself, whom they wished, apparently, to question. Us they secured by metal bonds to one of the great machines, then came to us with little metal models, made of what seemed plastic gleaming metal, which could change instantaneously through a myriad different forms at their operation, and which they used for a rough communication with us. And through these and the things they explained to us, we learned, Najus Nar and I, something of the purpose and the past of these comet-creatures.
"Eons they had dwelt upon the central worlds of this giant comet that roamed the outer void, shaping those worlds to their will as it flashed on. They had used the coma's electrical energy for their own weapons, and had used it to produce light-vibrations, a white light which they turned on and off for their day and night. The coma's energy, indeed, was the source of all their world's activities, but as their giant comet plunged on through space, that energy, ever shot backward in the tail that drove the comet on, was dissipated faster and faster, the coma waning and dying as all comets wane and die in time. But one thing could save them: to absorb into the coma vast quantities of matter, which would be converted instantly into electrical energy to replenish the coma. Not far from the great comet at that time loomed a vast universe of suns, and if the comet were to crash through the universe its suns and worlds would replenish their waning coma and save their comet from death. They needed but to change the comet's course, to send it toward the universe instead of passing it, and to do this they set up a great comet-control.
"This comet-control was set on the top of a truncated pyramid in a clearing at the central world's center. It was a great horizontal disk, set parallel to their disk world, with a pointer that could be moved at will around the disk-dial. The position of the pointer, by means of great projectors to which it was connected, controlled the position of the comet's tail. If the pointer was at the dial's rear the tail would be shot forth from the great coma's rear also, driving it forward through space. If they turned the pointer to the left the tail would shoot from the coma's left, driving the comet to the right. They could thus, by means of the comet-control and the great projectors which controlled the tail's position, drive the comet in any direction at will. The only thing they could not do with it was to reverse the comet-control, to shoot out a new tail opposite to the old one, since the momentum or pressure of the new one would crush and annihilate the coma and its worlds between their great pressures. They could drive the comet to right or left at will, though, which was all that they needed, since now they drove it toward the universe of suns near them.
"Onward the giant comet drove to that universe, and soon crashed through it, its suns and worlds being sucked into the gigantic coma and annihilated there, converted instantly into electrical energy which restored the waning coma's glory. So onward through space with renewed power it flashed, through the great void between the galaxies, until ages later when its coma was again waning they drove it toward another universe, crashed through it likewise. And so through the eons, as ever the comet's glory, the coma's power, has waned, they have driven it through another universe, destroying that universe to restore it. On though the limitless void of outer space they have driven it, a cosmic vampire looting the life of universes to restore its own! And now, when the comet's glory has again waned, they have turned it toward our own galaxy, to destroy it as they have done countless others. And within less than a scant half-dozen hours now the comet will have thundered so close to our galaxy that no power in existence can turn it aside!
"All this we heard from the comet-creatures' communication with us, and then they proposed that we cast in our lot with them, forgetting our doomed universe, and help them build great cruisers and force-beam apparatus like those with which we had fought them. I refused, of course, not wishing to live under any conditions after our galaxy's death, but to my horror Najus Nar accepted the proposal! He joined them, not listening to my frantic words, and went away with them, leaving me in despair. Then when the gong sounded across their worlds that marked the end of the white light and the beginning of this night, I began to work frantically with the metal bonds that held me to the great machine, twisting and untwisting them until at last, but minutes ago, I managed to break them. They had counted on the bonds holding me, and had left no guard over me, so at once I started off toward the central clearing, toward the great comet-control, for a desperate last attempt at turning the comet aside with it. I heard you crouching there, thought you comet-creatures and sprang at you, and the rest you know."
* * *
When Gor Han's deep whisper had ceased we were silent a moment, and surely never did stranger trio crouch in stranger place than we three, earth-man and amphibian Aldebaranian and great fur-clad Betelgeusan, there in the crimson dusk of the comet-city, all about us the pits that held its countless liquid-creatures and above us the glowing red coma which encompassed this world and was driving on toward our galaxy's doom. At last I broke the silence.
"Najus Nar with the comet-creatures!" I whispered. "It's impossible! In all its record there have been no traitors in the Interstellar Patrol!"
Gor Han looked steadily, compassionately, at me. "It is so, Khel Ken," he said. "I would not believe it had I not seen it myself."
"Najus Nar!" I repeated, again, then gathered myself. "There's but one thing to do," I said swiftly, "and that's for us three to make the attempt you planned, Gor Han, to get to the comet-control in the clearing and turn it, then destroy it before they can turn it back!"
We rose, paused. "There are comet-guards at the pyramid's base and summit, I know," said Gor Han, "but if we can overcome them before this night-period ends we'll succeed!"
Swiftly we moved forward, now, down the street through the dusk toward the great clearing. Mighty machines looming in the red dusk on each side of us, dark pits yawning between them in which the comet-hordes lay silent, glowing crimson coma that swung above-these made an inconceivably weird scene about us through which we three, a weird and dissimilar enough trio in that lurid dusk, moved rapidly on. Once we saw a few of the liquid-creatures flowing across one of the streets ahead, shrank back until they had disappeared, then moved swiftly on. One or two cube-ships slid by above, too, but these did not spy us, and in a few minutes more we had emerged from the mass of machines and pits into the great flat-floored circular plaza at the city's center, the truncated pyramid rising vaguely from it in the crimson dusk.
"The guards!" whispered Gor Han. "There at the pyramid's base!"
I gazed, saw that a great notched stair or flight of narrow steps ran up the pyramid's side, and that at its foot were some four dark liquid-shapes, lying motionless, but with weapons of some sort, bolt-containers I did not doubt, held in the grasp of their viscous fluid bodies. A moment we hesitated, then crept out across the clearing toward them. They seemed not aware of our approach, and still nearer we crept stealthily, approaching them from a side, until just when we were within feet of them, one seemed to flow swiftly toward us for an instant, then back, at the same time training his deadly weapon upon us! Before he could loose the crashing bolts from it, though, we had sprung upon them!
The combat that followed at the pyramid's base was the most horrible, I think, that ever I engaged in. I had grasped at the body of one of the things but instantly felt the viscous liquid body withdraw from my grasp, flow away from me, while I struggled in vain for some hold upon it. Then I glimpsed Gor Han with his four great arms gripping one of the viscous things and hurling it against the pyramid's side before it could evade his grasp, shattering it into liquid black splashes there. The thing I struggled with had gripped me in turn, now, and was like fluid steel in the strength with which it held me. I felt a powerful viscous arm tightening about my neck, while others pinioned my arms, felt that grasp tightening, strangling me, and then it was abruptly torn from me as Gor Han lifted and flung it likewise! I rose, staggering, to see that of the four comet-creatures only black splashes here and there about us remained, Gor Han and Jurt Tul having annihilated them with their mighty limbs.
"Up to the pyramid's summit!" I choked, stumbling toward the stair's base. "We've a chance to win yet!"
The others were rushing toward the stair with me, and then suddenly, as we set foot upon it, we stopped short. For in the air about us, sounding out across all the central world and the worlds about it, had clanged the note of a mighty gong! I heard Gor Han and Jurt Tul cry out at that sound, but in the next instant brilliant white light had sprung into being about us, the light of the comet-creatures' day suddenly turned on, bathing all things in their world in its revealing glare! And as we staggered there almost blinded by that brilliance, from the streets about us comet-creatures were flowing into the great clearing, liquid black comet-creatures in countless hordes from the pits of the mighty city. Even as they poured into the clearing they saw us, those on the pyramid's summit had also glimpsed us, and then from above and from all about the comet-creatures in countless thousands were rushing upon us!