I was half inclined to tell her that both it and we were under police surveillance at that moment. But I like Mrs. Klopton, in spite of the fact that I make her life a torment for her, so I refrained. “Last night, when the paper said it was going to storm, I sent Euphemia to the roof to bring the rugs in. Eliza had slipped out, although it was her evening in. Euphemia went up to the roof—it was eleven o’clock—and soon I heard her running down-stairs crying. When she got to my room she just folded up on the floor. She said there was a black figure sitting on the parapet of the house next door—the empty house—and that when she appeared it rose and waved long black arms at her and spit like a cat.” I had finished my dinner and was lighting a cigarette. “If there was any one up there, which I doubt, they probably sneezed,” I suggested. “But if you feel uneasy, I’ll take a look around the roof to-night before I turn in. As far as Euphemia goes, I wouldn’t be uneasy about her—doesn’t she always have an attack of some sort when Eliza rings in an extra evening on her?” So I made a superficial examination of the window locks that night, visiting parts of the house that I had not seen since I bought it. Then I went to the roof. Evidently it had not been intended for any purpose save to cover the house, for unlike the houses around, there was no staircase. A ladder and a trap-door led to it, and it required some nice balancing on my part to get up with my useless arm. I made it, however, and found this unexplored part of my domain rather attractive. It was cooler than down-stairs, and I sat on the brick parapet and smoked my final cigarette. The roof of the empty house adjoined mine along the back wing, but investigation showed that the trap-door across the low dividing wall was bolted underneath. There was nothing out of the ordinary anywhere, and so I assured Mrs. Klopton. Needless to say, I did not tell her that I had left the trap-door open, to see if it would improve the temperature of the house. I went to bed at midnight, merely because there was nothing else to do. I turned on the night lamp at the head of my bed, and picked up a volume of Shaw at random (it was _Arms and the Man_, and I remember thinking grimly that I was a good bit of a chocolate cream soldier myself), and prepared to go to sleep. Shaw always puts me to sleep. I have no apologies to make for what occurred that night, and not even an explanation that I am sure of. I did a foolish thing under impulse, and I have not been sorry. It was something after two when the door-bell rang. It rang quickly, twice. I got up drowsily, for the maids and Mrs. Klopton always lock themselves beyond reach of the bell at night, and put on a dressing-gown. The bell rang again on my way down-stairs. I lit the hall light and opened the door. I was wide-awake now, and I saw that it was Johnson. His bald head shone in the light—his crooked mouth was twisted in a smile.