guilty person among them it may give him a hint; and the odds are rather against its being very useful, considering the possibility—even probability—that the bonds and the collateral evidence left here days ago. But we'll look at their keys, by all means, and then they may go to lunch as soon as you please. Let me do the talking, or perhaps you'll start a scare. Send for the nearest clerks first, then the others. As each comes in, mention his name, so that I can hear it. Say, 'Oh, Mr. Brown'—or Jones, or what not—'have you some keys about you?' Don't mention my name, and I will do the rest. Push to the door of the safe, and lock this drawer in the table."
Mr. Bell did as Hewitt directed, and then called the head clerk, Mr. Foster, from his room, with the prescribed inquiry about keys.
"Yes, Mr. Foster," Hewitt added pleasantly, "I'm not sure that the lock is quite in order, but I promised to open it for Mr. Bell, so we'll try."
Mr. Foster, a slim, active old gentleman, grown grey in the firm's service, pulled a bunch of keys from his pocket, and Hewitt scrutinised each narrowly. "No," he said, "I'm afraid none of these will do. Stay," he added suddenly, and turning his back, carried the bunch to the window. "No," he concluded, as he came back to the table
