“I haven’t seen him since he went off at noon,” said Frank.

“Gone home mad,” suggested Bill.

“He wouldn’t do that,” said Skinny loyally.

“Well, we will go down and have a swim and by that time he had better put in an appearance.”

“I reckon I had better go back up where the caves are and look for him,” said Skinny.

“Don’t you do it!” said Frank. “He can’t get hurt; there is nothing for him to fall off or into, and he will come mogging along after a while. Let’s go down and swim.”

Skinny followed, but unwillingly. He wondered where Fatty was.

CHAPTER VII

When Fatty Bascom, surging heavily against the narrow and jagged opening, found that he could not get out, he could not credit his senses. He was there, he had come through the split in the rock with but little personal damage. Why, therefore, was he unable to withdraw? There must be some trick about it. He tried backing out, but just escaped wedging himself so tightly that he could move neither out nor in. However, he managed to free himself and tried it front-wise, side-wise and every other way he could think of. Fatty was a prisoner.