On-on-the hours that followed, while we drove through the awful void with the serpent-ships behind closing slowly and inexorably in upon us, live in my memory only as a strange period of ceaseless, rushing flight, with our eyes always upon the space-chart and upon the brilliant disk-mass of light ahead. Twice we flashed through the outskirts of great heat-regions glowing there in the void, and once past the edge of one of the deadly areas of radio-active vibrations, but ever after passing them our ship swung back toward the universe ahead. That universe, as we hummed on hour upon hour, was changing from a glowing disk of light into a great mass of individual points of light, into a gigantic mass of stars that loomed in greater radiant splendor before us with each passing hour. Green and red and yellow and blue suns we could glimpse among its thronging thousands, and others still white-hot with youth, shining with ever greater brilliance as we drove through the void toward them.
Before us the great universe lay in all its true gigantic glory, when we had covered two-thirds of the distance to it, but by that time our eyes were not upon it at all, but upon the space-chart and the black void behind us; since in the intervening hours the serpent-ships had crept ever closer toward us, their swarm on the space-chart less than an inch behind our racing ship-dot. Even that little gap, in the hours that followed, was lessening, closing, while we three in the pilot room watched it in tense silence. At last, with the blazing mass of suns of the Andromeda universe stretched across the heavens but a dozen hours ahead, we saw that the serpent-swarm on the chart was all but touching our single ship-dot, saw that the end at last was at hand.
"They'll overhaul us in less than an hour." exclaimed Jhul Din. "We'll never even reach the Andromeda universe."
To his outburst we made no answer, gazing in silence up at the big space-chart, watching doom creep upon us. The serpent-swarm had crept still farther upon us until its foremost dots seemed touching our own ship-dot, its foremost racing craft in reach of our own. Then, gazing through the rear distance-windows that projected from the pilot room's sides, the big Spican uttered a low exclamation, pointing mutely backward as we turned toward him. And as we gazed we saw, far behind us there in the lightless void, a swarm of close-massed light-points that steadily was largening, was drawing nearer toward us, toward our doom. For it was the end, I knew. We had escaped death in a hundred forms in the last days, but this we could not escape, for with the Andromeda universe still hours away our chance of escape was gone. Dodge and turn as we might, they would corner us, would hem us in; and though we might destroy one or two of their half-thousand ships, by no miracle could we hope to escape the rest. For a moment a deathly silence held us as we stared back toward those nearing light-points, and then I whirled around to the order-tube.
"Battle-positions-all of the crew to the ray-tubes." I shouted, and as I turned back to the other two I cried to them, "We'll let some of them feel our rays before they end us."
I heard Jhul Din shout his approval, saw Korus Kan's eyes burning as he glanced back toward our pursuers, heard from beneath the cries of our crew as they took up their positions at the ray-tubes, ready to smite a last blow at our enemies before they overwhelmed us. Behind us in the black the onrushing serpent-ships had grown from light-points to great dark oval shapes with white-lit pilot rooms at their noses, the score of great disk attraction-ships racing on among them. Ever closer they were leaping, and I knew that in a moment more those disk-ships would be near enough to grasp us, would glow with attractive force and hold us helpless while the death-beams of the fighting-ships swept us. But as we tensely waited for the end, still flashing on at our own full speed, there was a sharp cry from Korus Kan, and we wheeled toward him to find him regarding the pilot room's walls with eyes suddenly alight with new hope.
"It's another radio-active vibration region." he cried, pointing toward the walls and controls that were beginning to flicker out with the strange, fluorescent light we had always dreaded. "If we plunge straight into it there's a chance we can shake off the pursuit."
I caught my breath at the suggestion but in an instant saw that he was right, that though we might meet death amid the disintegrating vibrations, we might perhaps escape and throw off our pursuers, from whom death was certain as things were.
"It's a chance," I exclaimed. "Head straight into the radio-active region, Korus Kan."
He glanced swiftly at the instruments before him, swerved our racing ship a little to the right, and then walls and floor and mechanisms about us were glowing with ever-waxing misty light as we drove in toward the great region's heart. I felt the same tingling force flooding through me that I had already once experienced, as our flying ship raced on, again swaying and spinning as it flashed through the mighty ether-currents whose meeting and collision formed the great region of vibrations about us, though outside was only the same blackness as before. With every moment, though, our ship, our mechanisms, our own bodies, were glowing with waxing light, while in the darkness behind I saw that the great swarm of ships racing after us was itself aglow now with light, as it, too, rushed into the great radio-active region after us. And still, with a courage that matched our own desperation, they were speeding after and closer to us, undeterred even by the crumbling death that flooded space all about them and us now.