To one side of the lake, which was not over three hundred feet in diameter, Leo beheld a number of high rocks comparatively free from burning brush. Hither he directed his course.

“We can get on the rocks, if nothing else,” he said.

“Yes, and have our feet blistered,” growled Greson. “I’ll bet the stones are as hot as pepper.”

“We’ll try them, anyway.”

The young gymnast swam around with great care before he essayed to land.

Presently he discovered a little cove, and further on a split in the rocks several feet in width.

“Just the spot! Come,” he shouted to Greson.

He led the way into the narrow opening. Fifteen feet further on was a bit of a cave, and into this the pair crawled on hands and knees.

It was much cooler in the cave than it had been outside. By lying flat on the flooring they managed to get a current of fresh air. There was also a little pool there, and both washed the sweat and smoke from their faces and procured a drink. They were exhausted, and only too glad to about lie down and rest in their safe retreat.

“A narrow escape, truly,” said Leo with a shiver.