on his glasses; "very small indeed; but I think—why they're Henning's, I do believe!"
"Ah! one or two other little things seemed to point that way. Henning is your correspondence clerk, I believe, and I expect this thin little slip is a specimen of your typewriter paper. Have you any of his written figures for comparison?"
"Well no—I hardly think—you see he typewrites his letters, and although I know his writing very well I can't at the moment put my hand on any figures of his."
"Never mind—it's mere matter of curiosity; the police will ask him questions in the morning. What I believe has happened is this. Our friend Henning—if he's the man—has a friend outside a great deal cleverer than himself—though he would seem to have his share of cunning, too. Between them they resolved to rob you in the way they have done—temporarily. Henning was to take advantage of his position in that little inner room to get at the safe some day when it was open and when you were engaged in your own private inner room with a client, so leaving the safe unwatched. He was provided with a spare patent padlock and key, of the sort you used on that black box, and his confederate had drilled him in the trick of breaking that particular sort of padlock open, with other spare
