furthest from the battling warriors. Another instant found us huddled on the tiny deck. My hand was on the starting lever. I pressed my thumb upon the button which controls the ray of repulsion, that, splendid discovery of the Martians which permits them to navigate the thin atmosphere of their planet in huge ships that dwarf the dreadnaughts of our earthly navies into pitiful insignificance.
The craft swayed slightly but she did not move. Then a new cry of warning broke upon our ears. Turning, I saw a dozen black pirates dashing toward us from the mêlée. We had been discovered. With shrieks of rage the demons sprang for us. With frenzied insistance I continued to press the little button which should have sent us racing out into space, but still the vessel refused to budge. Then it came to me—the reason that she would not rise.
We had stumbled upon a two-man flier. Its ray tanks were charged only with sufficient repulsive energy to lift two ordinary men. The Thark's great weight was anchoring us to our doom.
The blacks were nearly upon us. There was not an instant to be lost in hesitation or doubt.
I pressed the button far in and locked it. Then I set the lever at high speed and as the blacks came, yelling upon us I slipped from the craft's deck and with drawn long-sword met the attack.
At the same moment a girl's shriek rang out behind me and an instant later, as the blacks fell upon
