“Pray continue,” said Holmes. “Your narrative promises to be a most interesting one.”

“You will find it rather disconnected, I fear, and there may prove to be little relation between the different incidents of which I speak. On the very first day that I was at the Copper Beeches, Mr. Rucastle took me to a small outhouse which stands near the kitchen door. As we approached it I heard the sharp rattling of a chain, and the sound as of a large animal moving about.

“ ‘Look in here!’ said Mr. Rucastle, showing me a slit between two planks. ‘Is he not a beauty?’

“I looked through and was conscious of two glowing eyes, and of a vague figure huddled up in the darkness.

“ ‘Don’t be frightened,’ said my employer, laughing at the start which I had given. ‘It’s only Carlo, my mastiff. I call him mine, but really old Toller, my groom, is the only man who can do anything with him. We feed him once a day, and not too much then, so that he is always as keen as mustard. Toller lets him loose every night, and God help the trespasser whom he lays his fangs upon. For goodness’ sake don’t you ever on any pretext set your foot over the threshold at night, for it’s as much as your life is worth.’

“The warning was no idle one, for two nights later I happened to look out of my bedroom window about two o’clock in the morning. It was a beautiful moonlight night, and the lawn in front of the house was silvered over and almost as bright as day. I was standing, rapt in the peaceful beauty of the scene, when I was aware that something was moving under the shadow of the copper beeches. As it emerged into the moonshine I saw what it was. It was a giant dog, as large as a calf, tawny tinted, with hanging jowl, black muzzle, and huge projecting bones. It walked slowly across the lawn and vanished into the shadow upon the other side. That dreadful sentinel sent a chill to my heart which I do not think that any burglar could have done.

“And now I have a very strange experience to tell you. I had, as you know, cut off my hair in London, and I had placed it in a great coil at the bottom of my trunk. One evening, after the child was in bed, I began to amuse myself by examining the furniture of my room and by rearranging my own little things. There was an old chest of drawers in the room, the two upper ones empty and open, the lower one locked. I had filled the first two with my linen, and as I had still much to pack away I was naturally annoyed at not having the use of the third drawer. It struck me that it might have been fastened by a mere oversight, so I took out my bunch of keys and tried to open it. The very first key fitted to perfection, and I drew the drawer open. There was only one thing in it, but I am sure that you would never guess what it was. It was my coil of hair.

“I took it up and examined it. It was of the same peculiar tint, and the same thickness. But then the impossibility of the thing obtruded itself upon me. How could my hair have been locked in the drawer? With trembling hands I undid my trunk, turned out the contents, and drew from the bottom my own hair. I laid the two tresses together, and I assure you that they were identical. Was it not extraordinary? Puzzle as I would, I could make nothing at all of what it meant. I returned the strange hair to the drawer, and I said nothing of the matter to the Rucastles as I felt that I had put myself in the wrong by opening a drawer which they had locked.