Curiosity prompted me to walk down to the beach, for the scene was very beautiful. As I passed along beside the deep and tangled vegetation of the swamp I thought that I saw a movement of the ferns at my left, but though I stopped a moment to look it was not repeated, and if anything lay hid there my eyes could not penetrate the dense foliage to discern it. Presently I stood upon the beach looking out over the wide and lonely sea across whose forbidding bosom no human being had yet ventured, to discover what strange and mysterious lands lay beyond, or what its invisible islands held of riches, wonders, or adventure. What savage faces, what fierce and formidable beasts were this very instant watching the lapping of the waves upon its farther shore! How far did it extend? Perry had told me that the seas of Pellucidar were small in comparison with those of the outer crust, but even so this great ocean might stretch its broad expanse for thousands of miles. For countless ages it had rolled up and down its countless miles of shore, and yet today it remained all unknown beyond the tiny strip that was visible from its beaches. The fascination of speculation was strong upon me. It was as though I had been carried back to the birth time of our own outer world to look upon its lands and seas ages before man had traversed either. Here was a new world, all untouched. It called to me to explore it. I was dreaming of the excitement and adventure which lay before us could Perry and I but escape the Mahars, when something, a slight noise I imagine, drew my attention behind me. As I turned, romance, adventure, and discovery in the abstract took wing before the terrible embodiment of all three in concrete form that I beheld advancing upon me. A huge, slimy amphibian it was, with toad-like body and the mighty jaws of an alligator. Its immense carcass must have weighed tons, and yet it moved swiftly and silently toward me. Upon one hand was the bluff that ran from the canyon to the sea, on the other the fearsome swamp from which the creature had sneaked upon me, behind lay the mighty untracked sea, and before me in the center of the narrow way that led to safety stood this huge mountain of terrible and menacing flesh. A single glance at the thing was sufficient to assure me that I was facing one of those long-extinct, prehistoric creatures whose fossilized remains are found within the outer crust as far back as the Triassic formation, a gigantic labyrinthodon. And there I was, unarmed, and, with the exception of a loin cloth, as naked as I had come into the world. I could imagine how my first ancestor felt that distant, prehistoric morn that he encountered for the first time the terrifying progenitor of the thing that had me cornered now beside the restless, mysterious sea.