“It is clear enough,” said I, “but I want support for it, the full-sized illustration.” “I promised you that, a ghost-story of my own experience.” Mrs Aldwych paused again, and then began the story which was to illustrate her theory. “It is just a year,” she said, “since Jack bought this house from old Mrs Denison. We had both heard, both he and I, that it was supposed to be haunted, but neither of us knew any particulars of the haunt whatever. A month ago I heard what I believe to have been the ghost, and, when Mrs Denison was staying with us last week, I asked her exactly what it was, and found it tallied completely with my experience. I will tell you my experience first, and give her account of the haunt afterwards. “A month ago Jack was away for a few days and I remained here alone. One Sunday evening, I, in my usual health and spirits, as far as I am aware, both of which are serenely excellent, went up to bed about eleven. My room is on the first floor, just at the foot of the staircase that leads to the floor above. There are four more rooms on my passage, all of which that night were empty, and at the far end of it a door leads into the landing at the top of the front staircase. On the other side of that, as you know, are more bedrooms, all of which that night were also unoccupied; I, in fact, was the only sleeper on the first floor. “The head of my bed is close behind my door, and there is an electric light over it. This is controlled by a switch at the bed-head, and another switch there turns on a light in the passage just outside my room. That was Jack’s plan: if by chance you want to leave your room when the house is dark, you can light up the passage before you go out, and not grope blindly for a switch outside. “Usually I sleep solidly: it is very rarely indeed that I wake, when once I have gone to sleep, before I am called. But that night I woke, which was rare; what was rarer was that I woke in a state of shuddering and unaccountable terror; I tried to localise my panic, to run it to earth and reason it away, but without any success. Terror of something I could not guess at stared me in the face, white, shaking terror. So, as there was no use in lying quaking in the dark, I lit my lamp, and, with the view of composing this strange disorder of my fear, began to read again in the book I had brought up with me. The volume happened to be ‘The Green Carnation,’ a work one would have thought to be full of tonic to twittering nerves. But it failed of success, even as my reasoning had done, and after reading a few pages, and finding that the heart-hammer in my throat grew no quieter, and that the grip of terror was in no way relaxed, I put out my light and lay down again. I looked at my watch, however, before doing this, and remember that the time was ten minutes to two.