"Now, Mr. Underhill, who was this man? I have been asking myself that question ever since I pocketed his money. The fellow who can pay out hundreds like that is a man to know."

I waited for the answer, which was slow in coming. But then Underhill was always slow. When he did speak it was lazily enough.

"Didn't you say you had some clue to his identity; a match-box or something of that kind, which you found in one of the pockets of the coat he gave you?"

"Yes, I have that."

"And that there were initials on it which you had not been able to decipher?"

"Oh, yes, initials; but what can a fellow make out of initials?"

"Not much, of course. Have you that match-box with you?"

"I just have. I sport it everywhere. I think so much of it I have even talked of having my name changed to fit the letters of this monogram."

"Let me see it, will you?"

The fellow drew it out.