“That reminds me,” muttered Halstead. “I forgot to lock the cabin door into the passageway.”

Retracing his steps, he used his key. This he had done regularly on the cruise so that Ham Mockus, a stranger to all on board, could not, if so tempted, prowl in the cabin after the others had retired. Then Halstead returned to deck.

Through the long night he and Joe, strong and fearless as they were, wrestled with exhaustion, for the physical strain was enormous. They met the duties of the night as only Americans, born on the sea-coast and bred to the salt water ways, can meet such problems. There were times when they believed the pounding seas must snap one of the propeller shafts. With one shaft gone, the other shaft could not long have done double duty on such a night and in such a sea.

At last Captain Tom sternly ordered Joe Dawson below for a rest. Joe came up on deck again, after a nap of an hour and a half, when it was within an hour of daylight.

“Now, you get below,” begged Dawson. “I feel as strong as a horse, Tom. And go back to your berth in the cabin, at that. You know, I have the electric signal to your berth, if I need you.”

Captain Tom stood for some time, regarding the weather and the running sea. But it seemed to him that they had reached a point where the gale was much less severe, and he was aching in every muscle and sinew.

“I’ll go below for a little while,” he assented. Stopping in the motor room long enough to shed oilskins and headgear, and hearing Ham still snoring luxuriously, the young sailing master trod through the passageway, unlocking the cabin door, then locking it again after him.

Captain Tom drifted off into slumber the instant his head touched the pillow in his berth. Nor did he waken. Joe, glad that his chum might rest at last, fought it out all alone on the bridge deck. Daylight was flooding the cabin from the transom overhead when Captain Halstead was roused by hearing Mrs. Tremaine’s voice. Poking his head sleepily through the berth curtains, Tom beheld both ladies fully dressed, while Oliver Dixon was just coming out from the other stateroom.

“We’re riding in much easier water, now, ladies,” was Dixon’s greeting.

“Yes; I noticed that,” replied Ida Silsbee. “And I can’t tell you how glad I am, either. I tried to be brave last night, but I’ll admit I was worried. I’d have been more alarmed, only I realized what a splendid pair of young sailors were looking after——Why, there’s Captain Halstead, drinking in enough flattery to turn his head,” laughed the girl, catching sight of the young skipper.