I was even afraid that my brain must be slightly affected, for I had always prided myself upon having my imagination under thorough control. But by degrees, Peter—by degrees—I began to doubt again whether it was really nothing but fancy on my part. I noticed that your manner was suspiciously odd at times. I discovered that there was one drawer in your secretary that you kept carefully locked. I caught your eye wandering towards the clock from time to time. What I suspected I hardly know; but I felt certain that I should find the explanation of that mystery in the locked drawer. I tried key after key, until I found one that fitted. Oh, I am not at all ashamed of it! Had I not a right to know? There were no letters, nothing but a cheque-book; but that cheque-book proved to me that, after all, I had imagined nothing: all the cheques were the same as the one I found on the carpet! I tore one out and kept it by me, and from that time I watched you closely. I saw how restless and impatient you were this evening, and I was certain that you were intending to use a cheque from that book. You were bent on getting
