I descended from the window with my feet groping for the upper rung of the ladder in a manner even more grotesque than my ascent through the casement, but neither my wife--usually extremely alive to anything ridiculous in my appearance--nor the domestics were in a mood to make merry. I fastened the window after me, and had hardly reached the bottom of the ladder before again a shadow flickered across the patch of moonlight. I was fairly perplexed, and stood musing. Then I recalled that immediately behind the house the ground rose; that, in fact, the house lay under a considerable hill. It was just possible by ascending the slope to reach the level of the gutter and rake the leads from one extremity to the other with my eye. I mentioned this to my wife, and at once the whole set of maids trailed down the stairs after us. They were afraid to remain in the passage, and they were curious to see if there was really some person on the leads. We went out at the back of the house, and ascended the bank till we were on a level with the broad gutter between the gables. I now saw that this gutter did not run through, but stopped against the hall roof; consequently, unless there were some opening of which I knew nothing, the person on the leads could not leave the place, save by the dormer window, when open, or by swarming down the fall pipe. It at once occurred to me that if what I had seen were the shadow of a burglar, he might have mounted by means of the rain-water pipe. But if so--how had he vanished the moment my head was protruded through the window? and how was it that I had seen the shadow flicker past the light immediately after I had descended the ladder? It was conceivable that the man had concealed himself in the shadow of the hall roof, and had taken advantage of my withdrawal to run past the window so as to reach the fall pipe, and let himself down by that. I could, however, see no one running away, as I must have done, going outside so soon after his supposed descent. But the whole affair became more perplexing when, looking towards the leads, I saw in the moonlight something with fluttering garments running up and down them. There could be no mistake--the object was a woman, and her garments were mere tatters. We could not hear a sound. I looked round at my wife and the servants,--they saw this weird object as distinctly as myself. It was more like a gigantic bat than a human being, and yet, that it was a woman we could not doubt, for the arms were now and then thrown above the head in wild gesticulation, and at moments a profile was presented, and then we saw, or thought we saw, long flapping hair, unbound. "I must go back to the ladder," said I; "you remain where you are, watching." "Oh, Edward! not alone," pleaded my wife. "My dear, who is to go with me?"