I was lost in wonder as to where I was, and what land this could be to which I had been brought. I had not plunged into the interior of the earth, but I had been carried under the mountains, and had emerged again into the glad light of the sun. Could it be possible, I thought, that Agnew's hope had been realized, and that I had been carried into the warm regions of the South Pacific Ocean? Yet in the South Pacific there could be no place like this--no immeasurable expanse of waters, no horizon raised mountain high. It seemed like a vast basin-shaped world, for all around me the surface appeared to rise, and I was in what looked like a depression; yet I knew that the basin and the depression were an illusion, and that this appearance was due to the immense extent of level surface with the environment of lofty mountains. I had crossed the antarctic circle; I had been borne onward for an immense distance. Over all the known surface of the earth no one had ever seen anything like this; there were but two places where such an immeasurable plain was possible, and those were at the flattened poles. Where I was I now knew well. I had reached the antarctic pole. Here the earth was flat--an immense level with no roundness to lessen the reach of the horizon but an almost even surface that gave an unimpeded view for hundreds of miles. The subterranean channel had rushed through the mountains and had carried me here. Here came all the waters of the Northern ocean pouring into this vast polar sea, perhaps to issue forth from it by some similar passage. Here, then, was the South Pole--a world by itself: and how different from that terrible, that iron land on the other side of the mountains!--not a world of ice and frost, but one of beauty and light, with a climate that was almost tropical in its warmth, and lands that were covered with the rank luxuriance of a teeming vegetable life. I had passed from that outer world to this inner one, and the passage was from death unto life, from agony and despair to sunlight and splendor and joy. Above all, in all around me that which most impressed me now was the rich and superabundant life, and a warmth of air which made me think of India. It was an amazing and an unaccountable thing, and I could only attribute it to the flattening of the poles, which brought the surface nearer to the supposed central fires of the earth, and therefore created a heat as great as that of the equatorial regions. Here I found a tropical climate--a land warmed not by the sun, but from the earth itself. Or another cause might be found in the warm ocean currents. Whatever the true one might be, I was utterly unable to form a conjecture.