did likewise, and all three struck out boldly for the nearest dock.
It was a risky thing to do, with all their clothing on, but each was a good swimmer and the weather had made the water very warm. On they went, keeping as closely together as possible.
"Are you coming back?" furiously yelled the mate, as he reached the rail and shook his fist at them.
To this none of the boys made reply.
"If you don't come back I'll shoot at you," went on the man.
"Do you think he will shoot?" asked Sam, in alarm.
"No," answered Dick. "We are too close to the city, and there are too many people who would hear the shot."
"A boat is putting off from the shore," said Tom, a second later. " It contains three persons."
"Captain Langless and the Baxters!" burst out Dick. "Dive, and swim as hard as you can down the stream."
All promptly dove, and the weight of their clothing kept them under as long as they pleased to remain. When they came up they heard the mate yelling frantically to those in the boat, who
