"Are you sure of this?" he asked.

"Quite sure."

"How did you find out?"

"Partly by accident, sir."

"Go on. Tell me all."

Dan rehearsed the story, already familiar to our readers, combining with it some further information he had drawn from the woman.

"I didn't think Talbot capable of this," said Mr. Rogers. "He has been in our employ for ten years. I don't like to think of his treachery, but, unhappily, there is no reason to doubt it. Now, Dan, what is your advice?"

"I am afraid my advice wouldn't be worth much, Mr. Rogers," said Dan, modestly.

"I am not sure of that. I am indebted to you for this important discovery. You are keen and ready-witted. I won't promise to follow your advice, but I should like to hear it."

"Then, sir, I will ask you a question. Do you want to prevent the robbery, or to catch the men in the act?"