"And successful, too," growled Gilhooly with a regretful look at the plunder on the table. "But there will be a reckoning. When we are once clear of this place we can set the police at work."

I was surprised at the way Quinn took this talk. He continued to smile and was in no way ruffled.

"You're wrong there," cried I, hot and indignant. "Professor Quinn had nothing to do with my being here. I've had my eye on this castle for a long while, and I let myself in, just before you came, hoping to make a haul and get clear. You interrupted me, and I stowed myself away upstairs. From what I saw and heard, I must say that it is a pleasure for me to turn my back on Professor Quinn's property and to give my entire attention to you four."

"Mr. Munn," said Quinn, "how long have you been engaged in this business?"

"For some years now, sir," I answered.

"You were honest—once?"

"Every man is born honest, if it comes to that. I used to work in an iron foundry, but the works were taken over by a combination and a lot of us were thrown out of employment. There was nothing for me to do but beg—and I'm above that. This came handiest, and I went into it. I like the business. Matching one's wits against the law keeps one constantly in the midst of alarms, so to speak, and I like excitement. And I have ability, for never yet have I worn the stripes or learned the lock-step. I have written some on the subject of my vocation, in the hope of beguiling others into the work."

"A dangerous man!" muttered Gilhooly.

"What are we coming to?" clamored Popham. "Here is a thief who is actually proud of his profession, and who actually writes books about it!"

"Merciful heavens!" gasped Meigs, in horror. "I feel sorry for my country when it produces such men."