“And a rather neat trap, wasn’t it—we’re very much pleased with it.”

“You’ll not be pleased with what it produces,” Harleston smiled.

“It has produced you,” the other mocked; “that’s quite some production, don’t you think? And now, as this letter has served its purpose, I’ll take the liberty of destroying it,” tearing it into bits and putting the bits in his pockets, “lest one of us be liable for forgery. Now for the pocket-book; you found something in mine, you may remember, Mr. Harleston.”

Harleston gave a faint chuckle. They would find nothing in his pocket-book but some visiting and membership cards, a couple of addresses and a few yellow-backs and silver certificates.

“The letter doesn’t seem to be there—which I much regret, but these visiting cards may be useful in our business; with your permission I’ll take them. Thank you, Mr. Harleston.”

He folded the book and returned it to Harleston’s pocket.

“I might have looked in your shoes, or done something disagreeable—I believe I even promised to smash your face when I got the opportunity—but I’m better disposed now. I shall return good for evil; instead of tying you up as you did me, I’ll release you from your bonds if you give me your word to remain quiet in this room until tomorrow morning at eight, and not to disclose to anyone, before that hour, what has occurred here.”

“After that?” said Harleston.

“You shall be at liberty to depart and to tell.”

“And if I do not give my word?”