"But in the corner near the window I saw something that told a tale—a pile of kegs, almost reaching to the low roof. ’Empty or full?’ thought I. I lifted one; it was full. I knew they weren’t old Congleton’s property, or they’d have disappeared with the rest of his furniture. How did I know he had any? Why, because I noticed nails on the wall, where pictures had hung, and a clean patch on one of the walls—cleaner than the rest, that is—where a bureau or something of the sort had stood. Besides, no man who’d have a mahogany bedstead and hangings that once were splendid would have been likely to be satisfied with a deal table and a common rickety chair. They were the kind of things you’d expect in a plowman’s or a fisherman’s kitchen. "At any rate, I saw that somebody had used the room since Congleton departed this life, for there were some crumbs on the table, and a chipped tumbler that smelt uncommonly like the kegs. Ghosts don’t eat bread and cheese and drink spirits! And there was a coil of rope under the table, and by the window a cheap sort of curtain that just fitted. I held it up to see; right in the middle of it was a round hole. And when I came to look at the bed I saw that the mattress had a big dent in it, and no dust on it. Somebody had had a nap there since old Congleton died. "Of course I saw all this in a very few seconds. Then I went on the prowl. I pulled out the bedstead; by George! didn’t it creak! I thought the old thing would fall to pieces. Behind it was a cupboard, and in the cupboard a large bull’s-eye lantern, and a long cylinder of cardboard about eighteen inches long. ’What’s that for?’ I thought. It didn’t strike me at the moment, but I took the things out and put them on the table. The lamp leaked a little; I found I’d got some spots of oil on my breeches. "When I put them on the table I noticed something I’d missed before. In the middle was a sort of pattern in red chalk—a circle with a tail to it; and at the edge of the table two parallel strokes. They’d been done some time, for the marks in the middle were almost hidden by oil stains. Those stains puzzled me for a bit. I could have understood wine stains better. But at last I tumbled to it. That was the place where the lamp was put for the signaling. I set it down on the circular mark; it just fitted. But I could not make out at first what the two straight strokes at the edge were for. Then I caught sight of the roll of cardboard and another idea struck me. I lifted it and stuck it on the bull’s-eye; it fitted like a glove; and when I turned the lantern so that the handle was over the tail of the circle I found that the cylinder just reached to the two marks.