"You wouldn't have beaten me if my engine hadn't gone back on me," grumbled Andy, chagrin showing on his face. "Wait until my motor runs smoother and I'll give you a big handicap and beat you. My boat's faster than yours. It ought to be. It cost fifteen hundred dollars and it's a racer."

"I guess it doesn't like racing," commented Tom as he swung the prow of his craft down the lake toward his home. But he knew there was some truth in what Andy had said. The RED STREAK was a more speedy boat, and, with proper handling, could have beaten the ARROW. That was where Tom's superior knowledge came in useful. "Just you wait, I'll beat you yet," called Andy, after the young inventor, but the latter made no answer. He was satisfied.

Mr. Swift was much interested that night in his son's account of the race.

"I had no idea yours was such a speedy boat," he said.

"Well, it wasn't originally," admitted Tom, "but the improvements I put on it made it so. But, dad, when are we going on our tour? You look more worn out than I've seen you in some time, not excepting when the turbine model was stolen. Are you worrying over your gyroscope invention?"

"Somewhat, Tom. I can't seem to hit on just what I want. It's a difficult problem."

"Then I tell you what let's do, dad. Let's drop everything in the inventive line and go off on a vacation. I'll take you up the lake in my boat and you can spend a week at the Lakeview Hotel at Sandport. It will do you good."

"What will you do, Tom?"

"Oh, Ned Newton and I will cruise about and we'll take you along any time you want to go. We're going to camp out nights or sleep in the boat if it rains. I've ordered a canopy with side curtains. Ned and I don't care for the hotel life in the summer. Will you go?"

Mr. Swift considered a moment. He did need a rest, for he had been working hard and his brain was weary with thinking of many problems. His son's program sounded very attractive.