"Do you think he will get over it?" asked Dave.

"I think he will," put in the doctor. "I have seen such cases before. Sometimes the recovery is quite rapid, when the castaway gets back among his own people."

Leaving the crowd seated around a comfortable fire, in order to dry their clothing before going to sleep, Pat Stoodles returned to the entrance of the cave.

He was gone the best part of half an hour, when he returned in considerable excitement.

"The haythins have tracked us to the waterfall!" he whispered. "An' wan av thim—Chief Walru—is thinkin' av thryin' to git behind th' water into the cave!"

CHAPTER XVI
THE ESCAPE TO THE COAST

The announcement that the savages were trying to get into the cave under the waterfall filled Dave and his friends with new alarm.

"You are sure of this, Stoodles?" questioned Captain Broadbeam, as he leaped to his feet.

"I am," was the Irishman's answer.