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 storey, 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 bedrooms 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 house thus stealthily prepared at dead of night? and why were the shutters closed and the doors padlocked? I effaced all traces of my visit, and came forth from the window feeling sobered and concerned. The schooner yacht was still in the same place; and it flashed for a moment through my mind that this might be the _Red Earl_ bringing the owner of the pavilion and his guests. But the vessel’s head was set the other way. CHAPTER II TELLS OF THE NOCTURNAL LANDING FROM THE YACHT