I ran on and on, through eternities of heart-breaking effort. At last I stopped exhausted, with pounding temples and bursting lungs, to look behind me. The flaming brain was but a dull violet glow against the red sky. A desolate waste of bare rugged rocks and great round craters lay about me beneath the crimson mist. All was silent! The sounds of pursuit were gone!
CHAPTER XXX
"The Nitrate Plantation"
Should I go on, or return and try to save Xenora, as she had rescued me? That question throbbed in my brain. The answer would have been easy enough if I had had her alone to consider. I might cheerfully have surrendered myself to that dreaded power to save her—any man would have done as much! But what of the menace to the earth? Should I give up the struggle?
For a long time I stood there on the rim of a strange crater, lost in indecision. At last my sense of duty to mankind was victor. I set off wearily toward the east again. The Omnimobile was so near the flaming brain that I dared not attempt to reach it, even if I had been confident of finding it. And upon consideration, I was sure that if the machine was left as it was, it would be only as a trap for me.
A sorry hope, indeed, was I for victory in the struggle with that vast alien power for the safety of earth! A man alone, ragged, without even a pocket-knife, lost in the wilderness of a strange world, and possessing only a modicum of scientific knowledge!
What folly, indeed, for one in such circumstances to pit himself against such a science! But that seemed the only hope for victory. With Sam in my place, the outlook would have been brighter. If I had a fair scientific education, Sam knew enough to raise cities and armies in the wilderness!
For many hours I struggled toward the east—away from the violet glow—over the desert of rocks and craters, through the ruby mist. And I came unexpectedly upon an explanation for the origin of the crimson haze. Thin clouds of red luminous gas were hissing from some of the craters or fumaroles—escaping from the radium deposits in the core of the earth, to float up and augment the radioactive cloud that held up the waters!
I was half dead with weariness when I reached the mile-high cliffs at the crater's rim, and half insane with grief for Xenora, and with angry doubt of my wisdom in deserting her. I have little memory of how I got up that wall of rocks. I remember climbing until I was worn out, of toiling upward with bleeding hands and feet, of fighting on when I was dizzy for want of food and water, of struggling up when my body screamed in pain for me to surrender and drop to merciful oblivion in the abyss! I remember sleeping many times on ledges or in crevices when I could go no farther.