Mr. Tupper bumped into them, embraced Chesty for support and then bounded to the rail, to which he clung desperately.

"Why are you on deck?" asked Madeline, sternly. "Go below at once!"

Just then a roll of the yacht slid him across the deck, tumbled him against the poop and then carried him sprawling into the scuppers. When he recovered his breath Mr. Tupper crawled cautiously to the companionway and disappeared into the cabin.

Steve and Mr. Cumberford had lashed themselves to the rail and in spite of the drenching spray continued to peer into the wild night with fearful intensity. Both were sick at heart, for they knew if the girls had managed to survive till now, their tiny boat would be unable to weather the storm. Every shriek of the wind, which often resembled a human cry, set them shivering with terror.

It was toward morning when the glare of the searchlight suddenly revealed a dark peak just ahead. Stephen Kane and Mr. Cumberford saw it, even as the warning scream of the lookout rang in their ears. Captain Krell saw it, and marveling at its nearness, sprang to the wheel. Madeline and Chesty saw it, too, and instinctively the big fellow put his arms around her as if to shield her.

Wild cries resounded from the deck; the bells rang frantically; the engines stopped short and then reversed just as a huge wave came from behind, caught the Salvador on its crest and swept her forward in its onward rush. Two men threw their weight upon the wheel without effect: the propeller was raised by the wave above the water line and whirred and raced madly in the air, while beneath the gleam of the searchlight a monstrous mass of rock seemed swiftly advancing to meet the fated ship.

Past the port side, where Madeline and her escort clung, swept a jagged point of rock; the yacht bumped with a force that sent everyone aboard reeling forward in a struggling heap; then it trembled, moaned despairingly and lay still, while the wave that had carried it to its doom flooded the decks with tons of water and receded to gloat over the mischief it had caused.

The searchlight was out; blackness surrounded the bruised and bewildered men and women who struggled to regain their feet, while in their ears echoed a chorus of terrifying shrieks not of the wind, but so evidently emanating from living creatures that they added materially to the panic of the moment.

Chesty Todd released Madeline, gasping and half drowned, from the tangle of humanity in the bow, and succeeded in getting her to the rail. The bow of the yacht was high and it lay over on one side, so that the deck was at a difficult angle.

"Are—are we sinking?" asked the girl, confused and unnerved by the calamity.