"Mistake! What do you mean?" asked John Larkin.

Conrad reflected that his words were betraying him.

"I don't know what I am saying," he replied, vaguely. "Yes, I do. I believe Andy Grant did this."

"Andy Grant!" repeated Jimmy Morris. "Why should he injure your boat?"

"Because he hates me."

"Andy isn't that kind of a boy. Besides, he has a newer and much handsomer boat himself."

There it was! That was what stung Conrad. His boat was second to Andy's.

As the three boys stood on the bank, a small boy, named Peter Hill, came up. He lived in the house nearest the boats.

"Did you see any one near the boat, Peter?" asked John Larkin.

"Yes, I seed a big tramp in de boat. He set it on fire."