. . .Bob, "I don't believe they would have the nerve to try to get into the house, but they might try to break into the boathouse to injure the Sprite. It'll only be about three hours, for I want you to call us at 5 o'clock sharp."

It seemed to the boys that they had hardly fallen 30 asleep when they heard Mike pounding on the door. "All right," shouted Bob, "we'll be right down."

Day was just breaking as they came out of the house. It took but a short time to get the Sprite into the lake, slip the cylinder in place and adjust the caps.

"Now," said Jack eagerly, "for the first trip with electricity."

It was surely an anxious moment to the boys, for if anything was wrong, there was but little time for adjustment.

"Push her off, Mike, and then jump in," ordered Bob.

Running the boat out to the end of the wharf, Mike gave her a push, jumping in as he did so, and a second later the Sprite was floating about twenty feet. . . Read More