"A tidal wave."

The words meant nothing to her, but the voice of the man told her that there was death in the moving water.

"Whatever happens, don't let go of me," he shouted.

He stooped and kicked off his heavy shoes, clasped an arm around the girl's waist. Her arms met around his neck. He was staring seaward, ready for a plunge. Woman-like, she kissed him, and then the wave struck the island--wall of water meeting wall of rock. For a second, Beekman thought he could feel the massive cliff on which he stood quivering. The next moment the great bore tore its way into the harbor. It leaped and surged through the narrow entrance in a madly foaming, green avalanche. Constricted by the walls, it rose and rose. He had one glimpse of the mighty wave towering above his head where he stood fifty feet above the sea level, and the next moment it broke, and, with a crash like a thousand thunderbolts, fell upon them.

CHAPTER XXV

THE INDOMITABLE EGO

The crest of the wave was traveling faster than its middle section, which had been retarded by the land. That fact, and that alone, saved the lives of the two poor mites upon whom it fell, for, instead of being dashed back against the rock wall by the terrific surge of the inward sweeping sea, the wave curling above their heads struck the wall a second in advance of the great body of water. It broke, fell upon them, swept them from the shelf, plunged them into the depths with such force and violence that it was the return thrust of the water which finally caught them--the backward undertow, rather than the inward rush.

Beckman had never heard so deafening a roar in all his life. He had, on one occasion, felt a great superdreadnaught roll and quiver under the simultaneous discharge of her own principal batteries under actual service conditions. It was child's play to this. Not that he had any thought about it now. He was only conscious of the roaring in his ears, the awful pressure upon his body, as he was driven down, down, down, until it seemed as if the bowels of the earth had opened before him and swallowed him up; as if he would never be lifted again out of the great deep which had sucked him under.

He held his breath instinctively, of course, but it seemed as if his lungs and heart would burst. His whole being was merged in two frantic desires: to keep on holding his breath, and not to let go of the woman who clung to him. Mercifully, although his body had shielded hers, she had almost lost consciousness. There remained to her only the desperate instinct to cling. She twined her arms and legs about him. He drew her closer and closer, although the tremendous thrust of the sea seemed to be striving to tear them apart as well as draw them under. Thus linked into a human warp and woof, they were hurled down and down, out and out.

Just when he had come to the conclusion that further resistance was impossible, that he must breathe or die, or breathe and die, the two interwoven figures, caught in a mad whirl of the torrent, were thrown upward. Their movements were arrow-like in their swiftness; or, better, they were driven as a stone from a mighty catapult. Swimming was impossible. There was no effort that could be made. There was nothing that he or the woman could do but to cling tighter and tighter. To hold on, that was all!