For there above, indeed, was that great circle in the vast transparent roof that we knew could be slid aside and opened by its Neptunian guards in the bright-lit little cage-room suspended beside it. My one hope had been that in our stolen cylinder we might deceive those guards of the great orifice into opening it for us to pass. But that hope was gone. Behind and below and before us were the pursuing swarms of cylinders and the Neptunians in the cage-room above knew that something was wrong, and had not opened the great circle for us. There were other similar circles, similar opening-sections, in Triton's roof, but it was too late now to seek them because from all about us the swarming, racing cylinders were rushing upon us. In another moment their rays would shatter us! I heard Marlin, beside me, utter a low exclamation of utter hopelessness as those cylinders rushed upon us, held our own cylinder for the moment motionless there in mid-air beneath the great roof's opening-section, and then suddenly reached toward the control-studs, even as Marlin's hoarse cry was sounding beside me.
"The end, Hunt!" he was crying. "The cylinders are almost upon us—and the opening-section is closed!"
"The end maybe—but not this way!" I shouted fiercely, at the same moment sending the cylinder flashing straight upward with all its speed. "Hold to your chair, Marlin—we're going to smash through that opening-section of the roof!"
Even as I cried out thus, our cylinder was rising upward toward the roof with all the power of its throbbing generators, hurtling upward at speed unthinkable toward the great circle of the opening-section! I was aware in that moment of the crowding swarms of cylinders about and beneath us loosing toward us a storm of crossing force-rays that we drove clear of in that instant. I was aware of the Neptunians in the cage-room beside the great opening-section rushing wildly about as we shot upward like the cylindrical projectile of some giant cannon! The next instant I caught the gleam of the transparent roof, of the opening-section just above us, Marlin and I instinctively crouched lower in our seats, and a moment later there was a blinding, stunning shock that seemed to split the universe with its detonation. We were dragged up from our seats with awful force. And then as we straightened up and looked out, we saw that the cylinder had smashed through the great opening-section and was throbbing above Triton's mighty roof!
The cylinder's ceiling, above us, was crumpled and bent badly, but in that moment it seemed a miracle that we had lived through that terrible collision. It was only our awful speed that had saved us, driving us through the opening-section's thick metal even as a cyclone will drive fragile straws and twigs unbroken through a board. Now as we looked downward we saw that the swarming pursuing cylinders were massed beneath the crumpled opening-section and that that circle of the opening-section was slowly sliding aside, bent and crumpled as it was, to allow those cylinders to emerge through Triton's roof after us! And up they came, a full hundred of them, racing up after us at utmost speed, up from the great metal roof of Triton, dark and opaque to our eyes from above, and up through its atmosphere close on our track!
Through the rushing roar of air about us, the throbbing of our generators, I was aware of Marlin shouting something beside me. I was gazing ahead for the moment, as that wild flight and pursuit passed on through Triton's atmosphere. Giant Neptune's cloudy green sphere bulked gigantic in the heavens before us, and far beyond it was the little fire-disk of the sun. Then I turned back to see the hundred pursuing cylinders, getting ever closer behind us. As I started at the sight, I became aware of Marlin shouting beside me, and at the same moment realized the import of his words. I realized that the throbbing of our generators was halting, hesitating, failing! Our great crash out through the roof had broken some part of their mechanism and now they were failing rapidly, and the speed of our cylinder was slowing!
And behind us the scores of onrushing cylinders were closer—closer! Already toward us again from them were leaping the slender pale force-rays, missing us at that distance but sweeping close about us. With an utter tenseness of body and spirit, Marlin and I watched them drawing closer, as our cylinder shot on through Triton's atmosphere. Suddenly another storm of rays had shot and swept toward us from behind, and one of those wild-whirling rays, in a single instant, clove through the cylinder's uppermost sides like a sword of fire through cardboard, slicing away completely the already-crumpled roof above us and the upper half-dozen feet of the walls! Instantly a flood of icy-cold air rushed in upon us and seemed in that moment to freeze us through. At the same moment the throbbing generators ceased completely to operate, the cylinder slowing swiftly on its rush forward, drifting helplessly there in the outer reaches of Triton's atmosphere, while from behind, like leaping creatures of prey, the scores of cylinders rushed upon us!
Neither Marlin nor I voiced a cry in that moment. We could only stare as if we were automatons, toward the onrushing cylinders, the oncoming doom. We had run our course at last. It seemed in that moment that all our bitter battle for freedom, our toilsome escape from our cell, our flight through Triton's sleeping side, our stealing of the cylinder and wild crash upward through the great roof's opening-section—that all this futile flight of ours was reenacting itself with lightning swiftness before my eyes. The swarming cylinders were almost on us, holding their rays now as they saw us helpless until they were closer, their great mass whirling straight toward us. And then, as I gripped the control-standard before me, expectant in that instant of the end. I saw that onrushing mass of cylinders suddenly shattered as though by gigantic blows from above. I saw the scores of cylinders driven this way and that in a single instant with colossal force, even as they rushed to annihilate us! And I looked dazedly up, was looking up——
"The space-flier!" Marlin's insane cry was sounding there beside me. "It's the space-flier—and Whitely and Randall!"