Standing at the controls, his tireless metal figure erect as he gazed out into the vast blackness of cosmic space that lay before us, Korus Kan turned from that gaze toward me as I stepped inside the pilot room. Silently I stepped over beside him, and silently, as was our wont, we contemplated the great panorama before us. A stupendous vault of sheer utter darkness it stretched about us, darkness broken only by the misty light of the great universes of thronging suns that floated here and there in this vast void through which we were racing. Behind us our own galaxy lay, just another of those dim glows; for hours had passed since we had launched out into outer space from its edge, and in those hours our awful speed had carried us on through the void through thousands of light-years of space.
But though in those hours of flight our own universe had dwindled to a mere mist of light, those other misty patches that were the universes ahead had hardly grown at all in size or intensity of light, making us realize that even the vast expanse of space through which our ship had already flashed was but a fraction of the gulf that lay between us and the great Andromeda universe. Before us the soft glow that was that universe seemed a little brighter, a little larger, but even so I knew that more than a score of days must elapse before even our ship's tremendous velocity would bring us to it. And even were we able to secure the help we needed, it would still be many days before we could flash back to our own galaxy, and in those days, I well knew, the serpent-invaders would be completing their last plans, tightening their grip on all the suns and worlds of the Cancer cluster, and preparing the way for the vast hordes that soon would cross the void to pour down on that cluster, spreading resistlessly from it across all our galaxy.
It was with heavy heart that I gazed ahead, knowing these things, but my gloomy thoughts were suddenly interrupted by an exclamation from Korus Kan, who had been peering intently forward into the tenebrous void, and who now pointed ahead, toward the right.
"That flicker of light," he said: "you see it?"
I bent forward, gazing to where he was pointing in the heavens before us, and then at last made out in the blackness, not far to the right of the glowing Andromeda universe, another patch of light of equal size, but one whose light was so dim as only to be seen with straining eyes. A mere dim flicker of light it was, in that crowding darkness, but as I gazed at it the nature of it suddenly came clearly to my mind, and I uttered a low exclamation myself.
"The universe of the serpent-creatures." I said. "It's the dying universe from which they came to invade our own."
He nodded. "Yes. It's nearer the Andromeda universe than our own, too."
I saw that he was right, and that the two universes, that of Andromeda and this dim, dying one, lay comparatively close to each other, and at almost equal distances from our own, the two forming the base of a long, narrow triangle of which our own universe was the apex. Together we gazed toward that dim flicker of light, in a thoughtful silence. We knew, even as we gazed, what great preparations were going on in that dying universe for the conquest of our own galaxy, what mighty efforts the serpent-races there were making, to complete their vast fleet and the strange, huge weapon which the records we had captured had mentioned, so that they could flash through the void to pour down on our galaxy. The knowledge held us wrapped in thought as our great ship raced on, still holding to its tremendous utmost velocity, rocking and swaying a little as it plunged through the vast ether-currents which swirled about us here in outer space.
Gradually, as we two stood in silence with our great craft speeding on, I became aware that during the last few minutes the air inside the pilot room had become perceptibly warmer, and that its warmth was still increasing. I glanced at the dial that registered the output of our heat-generators, but it was steady at its accustomed position; yet with each moment the warmth was increasing, until within a few minutes more the heat about us had become decidedly uncomfortable. Korus Kan, too, had noticed it, and had now swung backward the control of the heat-generators; yet still the warmth increased, the heated air in the pilot room rapidly becoming unbearable. I turned to the Antarian, fully alarmed now, but as I did so the door snapped open and Jhul Din burst up into the pilot room.
"What's happening to the ship?" he cried. "Its inner walls are getting almost too hot to touch."
In stunned surprise we gazed at each other, our heating-mechanisms turned completely off now, yet the inside-temperature dial's arrow was still moving steadily forward! The thing was beyond all reason, we knew, and for an instant we stood in amazement, the heat increasing still about us. Then suddenly Jhul Din pointed upward toward the massed dials above the controls, his arm quivering.
"Look!" he cried. "The outside-temperature dial." Swiftly we raised our own eyes toward it, the dial upon which was shown the temperature outside the ship. It should have shown absolute zero, we knew, as always in the infinite cold of empty space. But now it did not, and our eyes widened as we stared at it, in utter astonishment and fear. For it registered a temperature of thousands of degrees in the empty void about us.
"Heat!" I cried. "Heat in empty outer space. It's unthinkable."
Unthinkable it was; yet, even as we stood and stared, the arrow on the outside-temperature was still creeping steadily forward, showing a swiftly increasing heat outside, while the air inside had become all but unbreathable, parching to the lungs. At the same moment a faint light began to appear about us, a dim red glow that was intensifying with each moment that we raced onward, and as we wheeled toward the windows we saw, in the blackness of space before us, a great, faintly glowing region of red light ahead, stretching across the heaven before us. Ever stronger that crimson glow was growing as we raced on, the heat about us mounting with it, and from beneath came the cries of fear of our crew as they too glimpsed the awful region of heat and light through which we now were racing.
I knew that not much longer could the heat about us increase thus if our ship and ourselves were to survive, yet steadily the arrows on the temperature-dials were moving forward, and as more and more of the awful heat outside penetrated through the insulation of our heat-resistant walls I felt my brain turning dizzily, saw big Jhul Din stagger and sway against the wall, and saw Korus Kan, the heat penetrating through his metal body even more than through our own, slumping sidewise across the controls as he was overcome by it, only half conscious. I sprang to his side, despite my own dizziness and parching throat and lungs, grasped the controls and held our ship straight onward, since all about us the vast glow of crimson light and heat stretched, encircling us and beating upon us as we flashed onward. No flame there was, nor incandescent gas, nor solid burning matter of any kind, nothing but a titanic region of brilliant crimson light, without visible source of any kind, glowing with terrific heat there in the emptiness of outer space.
* * *
The glow about us was becoming more brilliant with each moment that we raced on, and as the heat outside and inside increased still more I saw Jhul Din fling open the pilot room's door in a vain search for cooler air; heard from beneath a rumbling, ominous thumping and cracking, as our heat-seared walls began to warp in the terrible temperature to which they were being subjected. Far ahead in the awful region of heat and light through which we were speeding I glimpsed now a deeper spot of crimson light in the great red glow, and as we raced on toward it I saw that it was the center of all the great outpouring of red light and of heat, since it was all but blinding in its brilliance, while our dials showed a temperature mounting each moment that we neared it.
"It's the center of the whole thing!" cried Jhul Din, staggering toward me and then slumping down to the floor, overcome. "Keep the ship clear of it!" he shouted, collapsing as he did so, while beside me I saw Korus Kan, completely unconscious, neither the great crustacean Spican nor the metal-bodied Antarian possessing my own resistance to the heat that now was smothering us, though I too knew that not much longer could I hold to the controls.
Hold to them I did, though, but half conscious now myself; then as there flamed dead ahead the heart of the whole great inferno, a blazing area of brilliant crimson light that dazzled me, its terrific heat pouring full down upon our plunging ship, I swung the controls sidewise, swerving our craft to the left and around the great heat-region's fiery heart. Along its side we flashed, our ship plunging and reeling now as it shot through ether-currents that must have been of unparalleled size and speed, but even in that darkness that was stealing over my senses I could see that in that hell of light and heat to our right there was still no core of matter, nothing but light and heat and space. Full beside us it flamed as we shot past it, our rocking ship's sides still grating and cracking terribly beneath the heat that beat upon them, racing past that awful glare of crimson light and heat that was like a colossal forge at which some mighty workman beat out flaming suns, blazing in terrific intensity and dimensions there in the void between universes.
On we raced, while I strove with all my waning strength to hold the ship, bucking and swaying as it was, clear of the fiery inferno to our right, and then it was dropping behind, the brilliant crimson light and terrible heat about us lessening a little as we shot by it. Moments more and it had dwindled to a deeper spot of light in the great red-glowing region to our rear, and then as we flashed still onward at our utmost speed the last of the light and heat about us were passing; so that a moment later, with heat-mechanisms again switched on, we were flashing again through the cold black void as before. With the passing of the overpowering heat the cracking of the ship's sides had ceased, and Korus Kan and Jhul Din were staggering to their feet, consciousness returning with the cooler air. Together we stared back, to where only a swiftly vanishing little glow of faint red light in the darkness behind gave evidence of the hell of heat and light through which we had just come.
"Heat and light in the void of outer space!" I cried. "The thing's impossible-and yet we came through it."
Korus Kan had been gazing back with us, but now he turned at my exclamation, shook his head. "Not impossible," he said quickly. "That heat and that light we came through were not generated like the usual heat and light of burning suns-they were generated in empty space by the ether itself!" And as we stared blankly at him he quickly explained himself. "You know that heat and light are but vibrations of the ether of various frequencies, just as are radio-active or chemical rays, and the electro-magnetic waves we use for speech and signaling. Highest of all in frequency are those electro-magnetic waves; next in order of frequency come heat waves; next the red light vibrations, and down the various colors of light to the lower-frequency violet light vibrations; and below these, lowest of all, the radio-active or chemical rays. Well, our scientists have long known that various of these ether-vibrations have been set up in the ether of outside space by the collision of great ether-currents. By those collisions are formed sometimes electro-magnetic vibrations, interfering with our speech-vibrations as static, or sometimes light-vibrations, glowing without visible source in the heavens and known to us as the zodiacal light. Here in the void, though, where mighty currents of size and speed inconceivable must collide, the vibrations set up were in the frequency-range of heat and of the lower adjoining frequency, that of red light; so that that region we came through is one where the immense ether-currents that we plunged through collide and set up a ceaseless outpouring of heat and light waves there in the ether, in empty space itself."
I shook my head. "It seems plausible," I said, "yet the reality of it-that titanic region of awful heat and light-"
"It seems strange enough." he admitted, "but it's really no stranger than if it had been a great region of static, or-"
A sharp cry from the Spican stabbed through our talk. "The walls!" he shouted. "They're beginning to glow-look-"
Startled, we swung about, and then the blood drove from my heart at the strangeness and awfulness of what we saw; for, engrossed in our talk, we had not noticed that all in the pilot room about us, walls and floor and mechanism and controls, was beginning to shine out with a strange, flickering luminosity, a misty, fluorescent light that with each moment was waxing in intensity, a quivering, unfamiliar light that seemed to glow from all in our ship, as it raced swaying on, though outside was nothing but the same blackness of space as before! Even as we stared about us, astounded, our own bodies, and especially the metal body of Korus Kan, had begun to radiate the same lambent light, and then, with a sudden great leap of my heart, I saw that the edges and corners of the walls about us were smoothing and rounding a little, crumbling and disappearing a little as though slowly disintegrating. At the same moment a strange tingling shook through every atom of my body, a quivering force that flooded through me with increasing intensity.
Horror-stricken we stood, until from one of the levers beside me an inch of the handle fell off, a little piece of metal that rattled to the floor and that was crumbling slowly, disintegrating, even as did the lever from which it had crumbled off. Then Korus Kan was leaping toward me, across the glowing pilot room.
"Swerve the ship's course!" he cried, wildly. "We've run into another great region of vibrations-radio-active vibrations that will crumble the ship and all in it to pieces in a few more moments!"
I grasped the shining levers, swung them sharply sidewise, sent our craft flashing off at a broad angle to its previous course, but still about us the glowing light waxed and deepened, and I felt an infinite nausea overcoming me as through my body surged the floods of radio-active vibrations from the ether about us that had caused all matter in our ship to radiate that misty light. With each moment the shining walls about us seemed crumbling faster, and I knew that moments more would see the ship's end unless soon we escaped from the great trap of disintegrating death into which we had ventured. I felt, too, that not for long could we ourselves stand the impact of these disintegrating vibrations, felt the tingling that shook my own glowing flesh increasing in intensity, while all about us, now, tiny bits of metal were falling from crumbling walls and ceiling and machinery.
Still grasping the controls, though, I held the ship to a course aslant from our previous one, while my two companions tensed with me over them, gazing ahead, while from beneath again came wild cries of alarm as those of our crew, who had already run the gantlet of the enemies' death-beams and of the great heat-region, saw the new peril that encompassed us. There came, too, from somewhere in the ship, a great thump and clang of metal as some one of our mechanisms there broke loose from its crumbling base, but still we flung onward through the void, rocking and twisting, and in a moment the terrible tenseness that gripped us lessened a little as we saw that the glowing of the walls about us, and of our own bodies, was beginning to wane, as we drew out of the zone of deadly force. A few more moments of onward flight and they had vanished altogether, and then I brought the ship back to its course, heading once more toward the misty light-patch of the Andromeda universe, while I drew a long breath of relief.
* * *
There was a silence of moments before Jhul Din, first of us, found his voice. "Heat regions and radio-active force regions!" he exclaimed. "If more of them lie between us and the Andromeda universe, what's our chance of getting there?"
Korus Kan shook his head. "We'll get there," he said, "but we'll have to keep close watch every moment of our flight-there's no way of telling how thickly scattered these great vibration-regions may lie in space about us."
A moment more and Jhul Din left us, passing down into the ship's body to ascertain what damage had been wrought by the great zone of radio-active force, though we knew that we had escaped from it before it could seriously damage the ship. And as I now relinquished the controls to Korus Kan, pausing with him a moment to look out again with some fearfulness into the black void through which we were racing, it was with a full realization, at last, of the tremendous perils and unguessed circumstances that might lie in the vast spaces through which we must yet flash. Yet as my eyes fell again on the misty-glowing circle of the Andromeda universe, and the sinister, dimly flickering mass of the dying universe of the serpent-people, to its right, I felt my determination steeling again within me.
It was the sight of those two far patches of light ahead, I think, that held us all to our purpose in the hours, the days, that followed. Long, strange days they were, when with no sun whatever near us we could measure time only by the great abysses of space through which our ship was steadily flashing, computing from those distances and from our unvarying velocity the passing of the hours. But with each day, with each hour, we were racing countless billions of miles nearer toward the Andromeda universe, and toward the goal of our tremendous journey. On and on we plunged, our prow turned ever toward that misty circle of light ahead, that was largening and brightening with each hour that we sped toward it.
Thrice, in those following days, we glimpsed great regions of heat and crimson light like that through which we first had plunged, and each time we were able to swerve away from them and detour around them in time, and so escaped a renewal of our first dread experience of them. More than once, too, our instruments gave us warning of zones of radio-active or electrical force near us, and these we gave even a wider berth than the heat-regions, for these we feared most of all, I think. Ether-currents and vast ether-maelstroms were about us, too, we knew, but the tremendous speed of our craft brought us flashing through those where a slower-moving ship would have perished.
As it was, one danger that had menaced us always in navigation inside the galaxy, the presence of meteors and meteor-swarms, was lacking in our flight. Yet I think that almost we would have welcomed their presence about us, for all their danger, if only for the knowledge that some other matter besides our ship moved and existed in the mighty void around us. It was our ship's isolation, the knowledge that all about it for countless billions upon billions of miles, thousands upon tens of thousands of light-years, there stretched only the awful regions of empty space, an ocean of lightless space in which the galaxies of flaring suns here and there were but tiny islands, that oppressed us most. Far behind lay our own galaxy, and far ahead the Andromeda universe; and between universe and universe, an infinitesimally tiny speck there in the mighty void, our ship raced on and on.
But as we added day after measured day to our flight, as we flashed nearer and nearer toward the Andromeda universe, it slowly began to change before us, to wax from a little patch of glowing light to a larger and brighter patch, and then to a great oval of light that flamed brilliant in the blackness of space before us, and finally to a vast disk-shaped mass of stars like our own universe. The disk mass lay in space with edge toward us, and seen thus, the light of its countless thronging stars was fused almost into a single waxing glow, but as we swept nearer and nearer that glow began to resolve itself into the light of the myriad massed suns of which it was composed. So brightly flamed those gathering suns in the heavens before us that only with an effort could we make out, far toward the right, the still faint glow of the dying universe of the serpent-people, as near to us almost as that of Andromeda, yet infinitely dim and dead in comparison with it.
* * *
Steadily we flashed on, day following day, until when a score of them had passed we computed ourselves as having traversed two-thirds of our journey, and could see that ever more swiftly the great universe of stars ahead was widening across the heavens. On that twentieth day I spent hours with Jhul Din in our regular inspection of the ship's mechanism, passing with him through the long room where our engineers, depleted in number by the death-beam that had sliced through our ship, tended carefully the mighty generators. Then the Spican and I passed out of the room, and were proceeding down the long corridor that led toward the pilot room when there came suddenly from it, ahead of us, a sharp cry.
We stopped short a moment, then raced down the corridor and burst up into the pilot room, where Korus Kan turned swiftly from the controls toward us.
"Ships are approaching from ahead." he cried, pointing up toward the big space-chart.
We looked, and saw that even as he had said there moved upon that chart a half-hundred black dots, in close formation, creeping steadily downward across the blank chart to meet the upward-creeping dot that was our ship. In silent amazement we watched, as our craft raced on, and then saw that as we neared them the fifty ships ahead were slowly halting, and then beginning to move back toward the Andromeda universe in the same direction as ourselves. They were allowing us to slowly overtake them, obviously intending to race beside us at the same speed as ourselves, toward the Andromeda universe. And as they made that move Jhul Din uttered an exclamation.
"They must be ships from the Andromeda universe itself." he cried. "They've learned of our approach by space-charts of some kind-have come out to meet us."
My heart leapt at the thought, for if it were so it would mean the first success of our mission across the void. Silently we watched, as our ship's single dot on the chart raced closer and closer toward the half-hundred dots above it, they moving now at a speed almost equal to our own. Within moments we would be able to glimpse them, we knew, and gazed tensely into the blackness of space ahead, toward the Andromeda universe's flaring suns, as our craft raced on. Moments were passing, tense moments of silence and watchfulness, and then far ahead we glimpsed in the void, hardly to be seen against the great glow of the Andromeda universe, a little mass of light-points that steadily were largening as we gradually overtook them.
A full fifty of them in sight, they were flashing on in a close formation, allowing us to overhaul them, changing from mere light-points into dark, vaguely glimpsed shapes as we drove nearer toward them. Then at last we had reached them, were driving in among them as they moved now at the same speed as ourselves, could see their shapes more clearly as long and oval, their front ends white-lit transparent-walled rooms like our own. Nearer we were flashing to those before us and about us, and then in those white-lit control rooms I glimpsed their occupants, slender, writhing pale shapes at sight of which I cried aloud.
"Serpent-ships!" I cried. "Serpent-ships from the dying universe ahead! Those back in our galaxy from whom we escaped have warned them of our coming, by the means of etheric communication their records mentioned-they know our mission and they've come out to intercept us here in space."
Even as I cried out, Korus Kan's hands flashed out to the controls, but he was an instant too late. For at that same moment the ships just before us had turned and circled in one swift movement, and were rushing straight back toward us. I had a flashing glimpse of their white-lit prows racing toward us through the intense darkness, and saw with photographic clearness the slender serpent-shapes in those brilliantly lit pilot rooms, and then the foremost ship loomed suddenly enormous as it flashed straight toward us. With a sharp cry Korus Kan drove the controls sidewise to swerve our ship, but before we could avoid the onrushing craft ahead it was upon us and with a terrific, thunderous shock had crashed straight into our own racing ship.