closely padlocked. Northmour, therefore, had entered by the back; this was the natural, and, indeed, the necessary conclusion; and you may judge of my surprise when, on turning the house, I found the back door similarly secured.
My mind at once reverted to the original theory of thieves; and I blamed myself sharply for my last night's inaction. I examined all the windows on the lower story, but none of them had been tampered with; I tried the padlocks, but they were both secure. It thus became a problem how the thieves, if thieves they were, had managed to enter the house. They must have got, I reasoned, upon the roof of the outhouse where Northmour used to keep his photographic battery; and from thence, either by the window of the study or that of my old bedroom, completed their burglarious entry.
I followed what I supposed was their example; and, getting on the roof, tried the shutters of each room. Both were secure; but I was not to be beaten; and, with a little force, one of them flew open, grazing, as it did so, the back of my hand. I remember, I put the wound to my mouth, and stood for perhaps half a minute licking it like a dog, and mechanically gazing behind me over the waste links and the sea; and, in that space of time, my eye made note of a large schooner yacht some miles to the north-east. Then I threw up the window and climbed in.
I went over the house, and nothing can express my mystification. There was no sign of disorder, but, on the contrary, the rooms were unusually clean and pleasant. I found fires laid, ready for lighting; three bed rooms prepared with a luxury quite foreign to Northmour's habits, and with water in the ewers and the beds turned down; a table set for three in the dining-room; and an ample supply of cold meats, game and vegetables on the pantry shelves. There were guests expected, that was plain; but why guests, when Northmour hated society? And, above all, why was the
