I had not burgled the house alone; I had taken a young detective named Burroughs with me. Of course, I might say it was because I wanted to give him a chance, or because I thought we might encounter desperate characters in the house; but as a fact, it was the supernatural element which decided me. I do not like the idea of the supernatural; my nerves, excellent in their way and in their own sphere, are inclined to get jumpy under certain conditions.
We went up from the basement cautiously, and it would have needed keen ears to have heard our movements.
Without showing a light, we went into every room in the house. Those in front had some light in them from a street lamp outside, but those at the back were dark, although, after a while, we got accustomed to the dark, and could see to some extent. None of the blinds was drawn, and although there was no moon, it was a clear, starlit night.
Our special attention was devoted to the room where Greaves had been found dead. It was substantially furnished, mid-Victorian in character. The lock on the door, which had been broken open, had been mended, and the window was fastened. Systematically we examined every article of furniture and the innocent-looking cupboard. The walls were substantial, but we did not subject them to tapping. I did not want to arouse the neighbors to the fact that No. 7 was not empty to-night.
"We have a long vigil before us, Burroughs," I said.
"What do you expect to discover, sir?"
"I don't know, nothing most likely; but if anything does happen it is going to happen in this room. I am going to take up my position in this chair by the bed, and I want you to keep watch on the landing. If you hear any one about the house come in to me at once, but if you only hear me move don't come in unless I call. I shall not fasten the door, but I shall put it to. If in some way it is possible to find out that this room is occupied, I want to appear as if I were quite alone. Do you understand?"
"Perfectly."
I saw Burroughs settled in a chair on the landing; then I entered the room and closed the door without latching it, and there was a certain feeling down my spine, in spite of the knowledge that I had a comrade near at hand.
It was quite beyond me how Quarles could undertake to stay there all alone. I could have done it had I been convinced that danger could only come from a material foe; it was the idea of the supernatural which beat me. I was not skeptic enough to be unmoved.