be started.

"That will prevent them from running away with my boat, anyhow,"
decided Tom. "And I'll tell Garret Jackson to keep a sharp watch
to-night." Jackson was the engineer at Mr. Swift's workshop.

Tom told his father of the happening and Mr. Swift was properly
indignant. He wanted to go at once to see Mr. Foger and complain
of Andy's act, but Tom counseled waiting.

"I'll attend to Andy myself," said the young inventor. "He's
getting desperate, I guess, or he wouldn't try to set the place on
fire. But wait until I show him these keys."

Bright and early the next morning the owner of the motor-boat was
down to the dock inspecting it. The engineer, who had been on
watch part of the night, reported that there had been no
disturbance, and Tom found everything all right. "I wonder if I'd
better go over and accuse Andy now or wait until I see him and
spring this evidence on him?" thought our hero. Then he decided
it would be better to wait. He took the ARROW out after
breakfast, his father going on a short spin with him.

"But I must go back now and work on my gyroscope invention," said
Mr. Swift when about two hours had been spent on the lake. "I am
making good progress with it."

"You need a vacation," decided Tom, "I'll be ready to take you and
Ned in about two weeks. He will have two weeks off then and,
we'll have some glorious times together."