"One will be enough this summer, I'm thinking," laughed John. "What are we going to do with that man?" As he spoke John glanced again at the uninvited and unwelcome passenger who apparently was taking his ease on the cushions in the stern of the boat.
"I'm going to do nothing," said Fred quickly. "I think I will leave him alone until we land at my grandfather's island and then I will tell him all about it."
"What do you suppose he is?" inquired John, glancing again at the man, who apparently was unaware of the interest his presence on board the Black Growler had aroused.
"I haven't any idea."
"How did he know about that bond?"
"I can't tell you."
"Do you suppose he stole it?"
"It doesn't seem so to me," said Fred slowly, as he shook his head. "If he stole it I can't understand why he comes down here after it. You would think he would want to put a long distance between himself and that bond after he lost it."
"And yet he seemed bold enough when he told us to tell him where it is. What do you suppose made him think of that?"
"Think of what?"