"My young friend," said Graham, with the air of a friendly mentor, "I want to give you a piece of advice."
"Very well."
"Don't be too ready to trust strangers. This Mr. Waterbury may be a very good man, but, on the other hand, he may be a confidence man. Do you understand me?"
"I think so."
"Now, I suppose you have money?"
"A little."
"Take care that he doesn't get possession of it. There are men who go about expressly to fleece inexperienced strangers."
"I suppose you know all about that," Tom could not help saying.
"What do you mean?" demanded Graham suspiciously.
"You are an old traveler, and must know all about the sharpers."