"And I didn't touch it," interposed the squint-eyed lad quickly.

"All right, I believe you. But somebody stole it, and I think I know who."

"Who?" asked Sam Snedecker.

"Well, you wouldn't know if I told you, but I suspect some men with whom I had trouble before," and Tom referred to Happy Harry and his gang. "I think they have my boat on this lake, and I'd like to get another speedy craft to cruise about it and make a further search. How about it, Andy? If I fix your boat, will you let me take it to look for my boat?"

"Sure thing!" agreed the bully quickly, and his voice for once was friendly toward Tom. "Fix the engine so it will run, and you can use the RED STREAK as long as you like."

"Oh, I probably wouldn't want it very long. I could cover the lake in about three days, and I hope by that time I could locate the thieves. Is it a bargain?"

"Sure," agreed Andy again, and Tom got into the motor-boat to look at the engine. He found that it would require some time to adjust it properly and that it would be necessary to take the motor apart.

"I think I'd better tow you to my dock," the young inventor said to Andy. "I can use some tools from the shop then, and by to-night I'll have the RED STREAK in running order."

The breeze was in the right quarter, fortunately, and with the motor-boat dragging behind, the ARROW's owner put the nose of the sailing craft toward his home dock.

When Tom reached his house he found that Mrs. Baggert had received another telephone message from Mr. Swift, inquiring why his son had not returned to Sandport.