“I’ll look out for that,” said Pepper who was in advance.
Presently they reached a spot where the cave divided into three parts. At the bottom of one part flowed a spring of clear, cold water.
“This is fine!” declared Dale, after taking a drink.
“Look out that you don’t swallow a lizard,” said Jack.
“I can tell you what,” declared Pepper, gazing around by the light of the smoky torch, “this would make quite a retreat if it was cleaned out.”
At last they could go no further and began to retrace their steps. At one point they had to crawl over some rocks and under some tree-roots.
“Wonder if I can push the tree up?” cried Dale, by way of a joke, and pressed upward with his back.
“Take care!” cried George Strong, “You may loosen something and get hurt.”
“The rock is shifting!” yelled Jack. “Look out!”
There was a grinding, and all saw that a rock above them was settling down. The teacher, Jack, and Pepper ran in one direction and Dale in another.