Towards evening when they were now far inland, they came to a large lake. Among the trees on the fringe of the lake a large fat man was lying flat on his stomach with his mouth in the water drinking as hard as he could. For some time they watched him, but still he drank and the lake grew smaller and smaller and still his thirst was not quenched. They laughed at such a strange sight, and as they approached him the boy said, "Hello! Why do you lie there drinking so much water?" "Oh," answered the fat man, "there are times when I cannot get enough water to drink. When I have drunk this lake dry I shall still be thirsty." "Who are you?" asked the boy. "I am Man of the Great Thirst," said the fat man. "That is well," said Great Heart, "we two need a third companion. We can do great deeds and we can win for you great treasure." So the three went along together.