fighting-men, for an alarm on Omean was a thing of rare occurrence.
We cast away before the sound of the first gun had died, and another second saw us rising swiftly from the surface of the sea. I lay at full length along the deck with the levers and buttons of control before me. Xodar and the boy were stretched directly behind me, prone also that we might offer as little resistance to the air as possible.
'Rise high,' whispered Xodar. 'They dare not fire their heavy guns toward the dome-the fragments of the shells would drop back among their own craft. If we are high enough our keel plates will protect us from rifle fire.'
I did as he bade. Below us we could see the men leaping into the water by hundreds, and striking out for the small cruisers and one-man fliers that lay moored about the big ships. The larger craft were getting under way, following us rapidly, but not rising from the water.
'A little to your right,' cried Xodar, for there are no points of compass upon Omean where every direction is due north.
The pandemonium that had broken out below us was deafening. Rifles cracked, officers shouted orders, men yelled directions to one another from the water and from the decks of myriad boats, while through all ran the purr of countless propellers cutting water and air.
I had not dared pull my speed lever to the highest for fear of overrunning the mouth of the shaft that passed from Omean's dome to the world above, but even so we were hitting a clip that I doubt has ever been equalled on the windless sea.
The smaller fliers were commencing to rise toward us when Xodar shouted: 'The shaft! The shaft! Dead ahead,' and I saw the opening, black and yawning in the glowing dome of this underworld.
A ten-man cruiser was rising directly in front to cut off our escape. It was the only vessel that stood in our way, but at the rate that it was traveling it would come between us and the shaft in plenty of time to thwart our plans.
It was rising at an angle of about forty-five degrees dead ahead of us, with the evident intention of combing us with grappling hooks from above as it skimmed low over our deck.
There was but one forlorn hope for us, and I took it. It was useless to try to pass over her, for that would have allowed her to force us against the rocky dome above, and we were already too near that as it was. To have attempted to dive below her would have put us entirely at her mercy, and precisely where she wanted us. On either side a hundred other menacing craft were hastening toward us. The alternative was filled with risk-in fact it was all risk, with but a slender chance of success.
As we neared the cruiser I rose as though to pass above her, so that she would do just what she did do, rise at a steeper angle to force me still higher. Then as we were almost upon her I yelled to my companions to hold tight, and throwing the little vessel into her highest speed I deflected her bows at the same instant until we were running horizontally and at terrific velocity straight for the cruiser's keel.
Her commander may have seen my intentions then, but it was too late. Almost at the instant of impact I turned my bows upward, and then with a shattering jolt we were in collision. What I had hoped for happened. The cruiser, already tilted at a perilous angle, was carried completely over backward by the impact of my smaller vessel. Her crew fell twisting and screaming through the air to the water far below, while the cruiser, her propellers still madly churning, dived swiftly headforemost after them to the bottom of the Sea of Omean.
The collision crushed our steel bows, and notwithstanding every effort on our part came near to hurling us from the deck. As it was we landed in a wildly clutching heap at the very extremity of the flier, where Xodar and I succeeded in grasping the hand-rail, but the boy would have plunged overboard had I not fortunately grasped his ankle as he was already partially over.
Unguided, our vessel careened wildly in its mad flight, rising ever nearer the rocks above. It took but an instant, however, for me to regain the levers, and with the roof barely fifty feet above I turned her nose once more into the horizontal plane and headed her again for the black mouth of the shaft.
The collision had retarded our progress and now a hundred swift scouts were close upon us. Xodar had told me that ascending the shaft by virtue of our repulsive rays alone would give our enemies their best chance to overtake us, since our propellers would be idle and in rising we would be outclassed by many of our pursuers. The swifter craft are seldom equipped with large buoyancy tanks, since the added bulk of them tends to reduce a vessel's speed.
As many boats were now quite close to us it was inevitable that we would be quickly overhauled in the shaft, and captured or killed in short order.
To me there always seems a way to gain the opposite side of an obstacle. If one cannot pass over it, or below it, or around it, why then there is but a single alternative left, and that is to pass through it. I could not get around the fact that many of these other boats could rise faster than ours by the fact of their greater buoyancy, but I was none the less determined to reach the outer world far in advance of them or die a death of my own choosing in event of failure.
'Reverse?' screamed Xodar, behind me. 'For the love of your first ancestor, reverse. We are at the shaft.'
'Hold tight!' I screamed in reply. 'Grasp the boy and hold tight-we are going straight up the shaft.'
The words were scarce out of my mouth as we swept beneath the pitch-black opening. I threw the bow hard up, dragged the speed lever to its last notch, and clutching a stanchion with one hand and the steering-wheel with the other hung on like grim death and consigned my soul to its author.
I heard a little exclamation of surprise from Xodar, followed by a grim laugh. The boy laughed too and said something which I could not catch for the whistling of the wind of our awful speed.
I looked above my head, hoping to catch the gleam of stars by which I could direct our course and hold the hurtling thing that bore us true to the centre of the shaft. To have touched the side at the speed we were making would doubtless have resulted in instant death for us all. But not a star showed above-only utter and impenetrable darkness.
Then I glanced below me, and there I saw a rapidly diminishing circle of light-the mouth of the opening above the phosphorescent radiance of Omean. By this I steered, endeavouring to keep the circle of light below me ever perfect. At best it was but a slender cord that held us from destruction, and I think that I steered that night more by intuition and blind faith than by skill or reason.
We were not long in the shaft, and possibly the very fact of our enormous speed saved us, for evidently we started in the right direction and so quickly were we out again that we had no time to alter our course. Omean lies perhaps two miles below the surface crust of Mars. Our speed must have approximated two hundred miles an hour, for Martian fliers are swift, so that at most we were in the shaft not over forty seconds.
We must have been out of it for some seconds before I realised that we had accomplished the impossible. Black darkness enshrouded all about us. There were neither moons nor stars. Never before had I seen such a thing upon Mars, and for the moment I was nonplussed. Then the explanation came to me. It was summer at the south pole. The ice cap was melting and those meteoric phenomena, clouds, unknown upon the greater part of Barsoom, were shutting out the light of heaven from this portion of the planet.
Fortunate indeed it was for us, nor did it take me long to grasp the opportunity for escape which this happy condition offered us. Keeping the boat's nose at a stiff angle I raced her for the impenetrable curtain which Nature had hung above this dying world to shut us out from the sight of our pursuing enemies.
We plunged through the cold camp fog without diminishing our speed, and in a moment emerged into the glorious light of the two moons and the million stars. I dropped into a horizontal course and headed due north. Our enemies were a good half-hour behind us with no conception of our direction. We had performed the miraculous and come through a thousand dangers unscathed-we had escaped from the land of the First Born. No other prisoners in all the ages of Barsoom had done this thing, and now as I looked back upon it it did not seem to have been so difficult after all.
I said as much to Xodar, over my shoulder.
'It is very wonderful, nevertheless,' he replied. 'No one else could have accomplished it but John Carter.'
At the sound of that name the boy jumped to his feet.
'John Carter!' he cried. 'John Carter! Why, man, John Carter, Prince of Helium, has been dead for years. I am his son.'
