fish by the thousands, by the millions.
The water of the inland sea was very warm, almost hot, and the atmosphere was hot and heavy above it. It seemed strange that beyond the buttressed walls of Caprona icebergs floated and the south wind was biting, for only a gentle breeze moved across the face of these living waters, and that was damp and warm. Gradually, we commenced to divest ourselves of our clothing, retaining only sufficient for modesty; but the sun was not hot. It was more the heat of a steam-room than of an oven.
We coasted up the shore of the lake in a north-westerly direction, sounding all the time. We found the lake deep and the bottom rocky and steeply shelving toward the center, and once when I moved straight out from shore to take other soundings we could find no bottom whatsoever. In open spaces along the shore we caught occasional glimpses of the distant cliffs, and here they appeared only a trifle less precipitous than those which bound Caprona on the seaward side. My theory is that in a far distant era Caprona was a mighty mountain—perhaps the world's mightiest volcanic action blew off the entire crest, blew thousands of feet of the mountain upward and outward and onto the surrounding continent, leaving a great crater; and then, possibly, the continent sank as ancient continents have been known to do, leaving only the summit of Caprona above the sea. The encircling walls, the central lake, the hot springs which feed the lake, all point to a conclusion, and the fauna and the flora bear indisputable evidence that Caprona was once part of some great land-mass.
As we cruised up along the coast, the landscape continued a more or less open forest, with here and there a small plain where we saw animals grazing. With my glass I could make out a species of large red deer, some antelope and what appeared to be a species of horse; and once I saw the shaggy form of what might have been a monstrous bison. Here was game a plenty! There seemed little danger of starving upon Caprona. The game, however, seemed wary; for the instant the animals discovered us, they threw up their heads and tails and went cavorting off, those farther inland following the example of the others until all were lost in the mazes of the distant forest. Only the great, shaggy ox stood his ground. With lowered head he watched us until we had passed, and then continued feeding.
About twenty miles up the coast from the mouth of the river we encountered low cliffs of sandstone, broken and tortured evidence of the great upheaval which had torn Caprona asunder in the past, intermingling upon a common level the rock formations of widely separated eras, fusing some and leaving others untouched.
We ran along beside them for a matter of ten miles, arriving off a broad cleft which led into what appeared to be another lake. As we were in search of pure water, we did not wish to overlook any portion of the coast, and so after sounding and finding that we had ample depth, I ran the U-33 between head-lands into as pretty a landlocked harbor as sailormen could care to see, with good water right up to within a few yards of the shore. As we cruised slowly along, two of the boches again saw what they believed to be a man, or manlike creature, watching us from a fringe of trees a hundred yards inland, and shortly after we discovered the mouth of a small stream emptying into the bay: It was the first stream we had found since leaving the river, and I at once made preparations to test its water. To land, it would be necessary to run the U-33 close in to the shore, at least as close as we could, for even these waters were infested, though, not so thickly, by savage reptiles. I ordered sufficient water let into the diving-tanks to lower us about a foot, and then I ran the bow slowly toward the shore, confident that should we run aground, we still had sufficient lifting force to free us when the water should be pumped out of the tanks; but the bow nosed its way