"Oh, some one in the next room. The walls here are very thin--only boards in places." I did not complete what I had begun to say. If I could hear steps through the partition, then could our neighbors hear us talk, and what I had determined upon must be kept secret from all outsiders. I drew a sheet of paper toward me and wrote: "I shall stay here to-night. Something tells me that in doing this I shall solve this mystery. But I must appear to go. Take my instructions as usual, and bid me good-night. Lock the door after me, but with a turn of the key instantly unlock it again. I shall go down stairs, see that my carriage drives away, and quietly return. On my re-entrance I shall expect to find Miss Wilcox on the couch with the screen drawn up around it, you in your big chair, and the light lowered. What I do thereafter need not concern you. Pretend to go to sleep." The nurse nodded, and immediately entered upon the programme I had planned. I prepared the medicine as usual, placed it in its usual glass, and laid that glass where it had always been set, on a small table at the farther side of the bed. Then I said "Good-night," and passed hurriedly out. I was fortunate enough to meet no one, going or coming. I regained the room, pushed open the door, and finding everything in order, proceeded at once to the bed, upon which, after taking off my hat and cloak and carefully concealing them, I lay down and deftly covered myself up. My idea was this--that by some mesmeric influence of which she was ignorant, the nurse had been forced to either poison the glass herself or open the door for another to do it. If this were so, she or the other person would be obliged to pass around the foot of the bed in order to reach the glass, and I should be sure to see it, for I did not pretend to sleep. By the low light enough could be discerned for safe movement about the room, and not enough to make apparent the change which had been made in the occupant of the bed. I waited with indescribable anxiety, and more than once fancied I heard steps, if not a feverish breathing close to my bed-head; but no one appeared, and the nurse in her big chair did not move. At last I grew weary, and fearful of losing control over my eyelids, I fixed my gaze upon the glass, as if in so doing I should find a talisman to keep me awake, when, great God! what was it I saw! A hand, a creeping hand coming from nowhere and joined to nothing, closing about that glass and drawing it slowly away till it disappeared entirely from before my eyes! I gasped--I could not help it--but I did not stir. For now I knew I was asleep and dreaming. But no, I pinch myself under the clothes, and find that I am very wide awake indeed; and then--look! look! the glass is returning; the hand--a woman's hand--is slowly setting it back in its place, and--