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 crest of which was just beginning to topple over with a hissing, ominous sound. Relentlessly it rushed on, and Dave's heart sank, for he believed that his last moment had come.

The boat shot upward and spun round dizzily, half full of water. The boy clutched one of the seats with nerveless fingers. Every second he expected to feel the wave closing over him. Rowing was out of the question. They were at the mercy of the sea. The boat met the next wave broadside on. It came like some devouring monster, eager for its prey. One of the crew, his nerves strung to breaking point, uttered a hoarse cry as the mass of water struck them. The boat turned completely over, and its occupants sank in a smother of foam, many of them to their doom.

Aided by the life-belt he was wearing, the boy struck out, gasping. At one instant he came to the surface and took a choking breath. The next moment another swirling breaker had caught and overwhelmed him again. His mouth, ears, and