It was in one of the most open and least frequented parts of the broad Pacific that the packet of which I was supercargo fell a victim to the German sea-raider. The great war was then at its very beginning, and the ocean forces of the Hun had not completely sunk to their later degradation; so that our vessel was made a legitimate prize, whilst we of her crew were treated with all the fairness and consideration due us as naval prisoners. So liberal, indeed, was the discipline of our captors, that five days after we were taken I managed to escape alone in a small boat with water and provisions for a good length of time.
     When I finally found myself adrift and free, I had but little idea of my surroundings. Never a competent navigator, I could only guess vaguely by the sun and stars that I was somewhat south of the equator. Of the longitude I knew nothing, and no island or coast-line was in sight. The weather kept fair, and for uncounted days I drifted aimlessly beneath the scorching sun; waiting either for some passing ship, or to be cast on the shores of some habitable land. But neither ship nor land appeared, and I began to despair in my solitude upon the heaving vastnesses of unbroken blue.
     The change happened whilst I slept. Its details I shall never know; for my slumber, though troubled and dream-infested, was continuous. When at last I awaked, it was to discover myself half sucked into a slimy expanse of hellish black mire which extended about me in monotonous undulations as far as I could see, and in which my boat lay grounded some distance away.
     Though one might well imagine that my first sensation would be of wonder at so prodigious and unexpected a transformation of scenery, I was in reality more horrified than astonished; for there was in the air and in the rotting soil a sinister quality which chilled me to the very core. The region was putrid with the carcasses of decaying fish, and of other less describable things which I saw protruding from the nasty mud of the unending plain. Perhaps I should not hope to convey in mere words the unutterable hideousness that can dwell in absolute silence and barren immensity. There was nothing within hearing, and nothing in sight save a vast reach of black slime; yet the very completeness of the stillness and the homogeneity of the landscape oppressed me with a nauseating fear.
     The sun was blazing down from a sky which seemed to me almost black in its cloudless cruelty; as though reflecting the inky marsh beneath my feet. As I crawled into the stranded boat I realised that only one theory could explain my position. Through some unprecedented volcanic upheaval, a portion of the ocean floor must have been thrown to the surface, exposing regions which for innumerable millions of years had lain hidden under unfathomable watery depths.