"By de power, but dat terrific, dat 'nough to shake de life out of anybody," muttered Tom, whose eyes all this while had been staring into the gloom, endeavouring to follow every movement of his young American master. Indeed, so acute was the vision of the dusky giant that details were visible to him, and to Sam, his diminutive brother, which others aboard the boat had no idea of. "Lummy, but Tom not like to see dat ship shake herself so! She go down with a bust in one little moment, and den--and den, what happen to Massa Jim?" The very thought of the disaster which would follow drove the negro into a condition almost of frenzy. His eyes bulged from their sockets and looked as though they would tumble from his head. A whimper from Sadie set Tom's honest heart throbbing and palpitating. It was real pain to the fine fellow to know that his little mistress was in trouble. That and his own courageous, impetuous nature made it impossible to stay any longer inactive in the boat. Every muscle in his body trembled, while his breath came quick and deep. "I's goin' ter help!" he shouted. "Nebber yo fear, missie; soon hab Massa Jim back safe and sound." With that he floundered overboard, causing the boat to rock once more till her gunwale dipped beneath the oily surface of the ocean, a mass of water flooding the interior instantly. His head had hardly bobbed up in view again when there came a sudden exclamation from Sam, and a moment later the little fellow had slipped away to help his dusky brother in his gallant task. "Jemima! But if that don't take it!" bellowed one of the crew of the boat, looking himself as if he were about to follow. "Every mother's son of 'em'll go down. That ship'll suck 'em under sure. Ain't we going nearer?" In his eagerness he seized an oar, banged it into the rowlock, and proceeded to bear upon it; but a stern order from the captain at once arrested the movement. "Belay there!" he cried sharply. "I ain't going to risk the lives of all aboard for those in the water. We're too close to that ship by a long way, much too close to my liking. Drop another oar in there, Macdougal, and pull us away a bit. Harvey, jest get to at bailing; she's taken a bit of water aboard. Miss Sadie, it's the right thing we're doing. It'll help them best in the end." But there was mutiny in the eye of Macdougal. In the excitement of the moment the eager fellow could not in his own mind differentiate between the safety of those aboard the boat and those who had plunged into the water. "What's that?" he growled. "Go farther away! Desert them as is wanting our help! Wall, if I ain't jiggered! We calls ourselves white men, and----" "Stop!" commanded the skipper sternly. "Get down on that seat and pull, Macdougal. You're a fool, I'm thinking. Jest remember that I'm your skipper still, and taking orders from no one. I'm working in the interest of all."