As nearly as he could guess the height of the cliffs ranged from three hundred to five hundred feet. In niches and shelves here and there a few bits of green appeared. The tops of the cliffs seemed as bare as the sides. No way to surmount them appeared. Sometimes they ran straight down into the deep, dark water. At the base of the walls here and there were little stretches of sand. The place was still dark and gloomy, and somehow terrible. The sunlight had not penetrated into it yet; would not, he judged, for some time, or until the sun got into exactly the right position to shine through that narrow opening.
An unusual mental alertness had taken the place of his lethargy. Hope had made the change. He must, first of all, find water, then food, and then he must reach the top of the cliffs. On the other side of the shoulder of wall where he stood ran one of the stretches of sand. How could he get around that shoulder and pass through that opening? He did not dare to attempt to swim around it yet. He must climb over it. Painfully, with ebbing strength but with growing hope, he managed at the imminent risk of his life to climb around the point and finally set foot upon that narrow strip of sand. He looked back only to find the wall behind him rising sheer above his head, just as the walls opposite had. It was like being imprisoned in a vast tower, one side of which had been riven from top to bottom. And the dark, forbidding gloom oppressed him still more. The morning was still, there was no breeze in that enclosed place, but he shivered nevertheless and would have given anything for human companionship. He even tried to cry aloud to break the appalling stillness, but no sound came from cracked lips and parched, constricted throat. Was he to fail, having come so far?
In frantic terror he broke into a feeble run aimlessly forward. Rounding another jut of the wall, he saw that which meant life--a slender stream of water falling in long, broken leaps from the top to the bottom of the wall. It had cut a channel through the sand and was lost in the bay. At the sight, strange to say, his strength left him. Fear had drawn him on and now fear and everything else were forgot. He fell to his knees, but still had strength and determination to crawl on. At last he reached it, fell on his face, and drank. It needed all his resolution, all his courage, all his mental and physical power not to drink and die. He knew he must drink sparingly and he did so.