Randy and Clay, being on the outer side, had more to overcome, and were swept beyond their companions. Ned and Nugget drifted against a precipitous wall of rock that rose twenty feet before its surface was broken by the tree or brush.

They looked hopelessly around them, vainly seeking a chance of escape, while louder and louder in their ears sounded the hissing roar of the oncoming flood. At the base of the cliff the water was already boiling and tossing.


CHAPTER XXXIII

UNDERGROUND CRUISE

"Paddle on, quick!" cried Ned in an agony of fear. "We may reach a break in the cliff."

Nugget, who was half a canoe's length in advance had sufficiently presence of mind to obey. He paddled off with desperate strokes, and Ned crowded him closely.

A few yards down stream the wall of rock jutted out slightly and then receded. As the canoes rounded this a great heaving wave—the vanguard of the flood—tossed them high on its crest and cast them, like a stone from a catapult, straight toward a black, semi-circular hole in the base of the cliff. A furious current swept in the same direction, and even had the boys realized the nature of this new peril they could have done nothing to help themselves.

Nugget dropped his paddle with a cry of terror and clutched the combing. The next instant he shot into the gaping hole, scraping his cap from his head by contact with the top, and disappeared from view.