"I'm suspicious," said Sam, "but I don't know yet how much damage they did. I called you because I thought I might need your help. There isn't anything more you can do now and you might as well go back to bed."
With the coming of the day most of the fears and anxieties of the boys departed. The alarm of Sam the preceding night appeared very differently now and they even were inclined to laugh at him for his fears. Sam, however, had fallen once more into one of his periods of silence and made no comment on the remarks of the Go Ahead boys.
"I'm going over to the Bay now," said Sam when the boys after breakfast approached the dock.
"Are you going in the motor-boat?" inquired Fred.
"Yes, sir."
"How long will you be there?"
"I don't know. Probably an hour."
"Then we'll go over with you," answered Fred. "Perhaps we'll find one of these fellows who were trying to blow up the Black Growler last night." "I'm not saying they were trying to blow her up," retorted Sam. "You don't have to blow up a boat to put it out of commission, do you? Her machinery is so fine that it wouldn't take very much damage to one part to throw the whole thing out of gear."
"That's true," said George, "but I don't believe, Sam, that there's need for our being scared. Probably those two men you saw last night were just stopping on their way back to the Bay from some of the islands."
Sam shook his head and although he did not speak, his action implied that the Go Ahead boys might soon be wiser than they were at that time.