In a few words Jack related his story and then the other Rovers told of what they knew concerning the affair. As the recital proceeded Colonel Colby’s brow grew dark.

“You say there were three persons in that motor-boat?” he questioned.

“So far as I could see,” answered Jack. “Of course the moonlight isn’t very strong to-night.”

“I saw the three fellows as they rushed back to the motor-boat after they came from the boathouse,” put in Randy.

“So did I,” added his twin, and Fred said the same.

“Did any of you recognize any of those persons?”

At this the Rover boys shook their heads.

“Did you recognize the motor-boat?” put in Captain Dale.

At this Jack grew thoughtful and looked at Fred.