It was on the morning of the 26th of March last that I discovered the curious condition of affairs concerning which I have essayed to write. My family do not agree with me as to the date. They say that it was on the evening of the 25th of March that the episode had its beginning; but they are not aware, for I have not told them, that it was not evening, but morning, when I reached home after the dinner at the Aldus Club. It was at a quarter of three A.M. precisely that I entered my house and proceeded to remove my hat and coat, in which operation I was interrupted, and in a startling manner, by a click from the dark recesses of the library. A man does not like to hear a click which he cannot comprehend, even before he has dined. After he has dined, however, and feels a satisfaction with life which cannot come to him before dinner, to hear a mysterious click, and from a dark corner, at an hour when the world is at rest, is not pleasing. To say that my heart jumped into my mouth is mild. I believe it jumped out of my mouth and rebounded against the wall opposite back though my system into my boots. All the sins of my past life, and they are many--I once stepped upon a caterpillar, and I have coveted my neighbor both his man-servant and his maid-servant, though not his wife nor his ass, because I don't like his wife and he keeps no live-stock--all my sins, I say, rose up before me, for I expected every moment that a bullet would penetrate my brain, or my heart if perchance the burglar whom I suspected of levelling a clicking revolver at me aimed at my feet. “Who is there?” I cried, making a vocal display of bravery I did not feel, hiding behind our hair sofa. The only answer was another click. “This is serious,” I whispered softly to myself. “There are two of 'em; I am in the light, unarmed. They are concealed by the darkness and have revolvers. There is only one way out of this, and that is by strategy. I'll pretend I think I've made a mistake.” So I addressed myself aloud. “What an idiot you are,” I said, so that my words could be heard by the burglars. “If this is the effect of Aldus Club dinners you'd better give them up. That click wasn't a click at all, but the ticking of our new eight-day clock.” I paused, and from the corner there came a dozen more clicks in quick succession, like the cocking of as many revolvers. “Great Heavens!” I murmured, under my breath. “It must be Ali Baba with his forty thieves.” As I spoke, the mystery cleared itself, for following close upon a thirteenth click came the gentle ringing of a bell, and I knew then that the type-writing machine was in action; but this was by no means a reassuring discovery. Who or what could it be that was engaged upon the type-writer at that unholy hour, 3 A.M.? If a mortal being, why was my coming no interruption? If a supernatural being, what infernal complication might not the immediate future have in store for me?