“Why not split it up,” I said cheerfully, “and try doing what seems best for both?”

“But that’s only a compromise!” she complained, and was asleep almost immediately. I lowered the light and closed the door, and shortly after I heard Mr. Reed locking it from the outside.

With the bolt off my door and Mrs. Reed asleep my plan for the night was easily carried out. I went to bed for a couple of hours and slept calmly. I awakened once with the feeling that some one was looking at me from the passage into the night nursery, but there was no one there. However, so strong had been the feeling that I got up and went into the back room. The children were asleep, and all doors opening into the hall were locked. But the window on to the porte-cochère roof was open and the curtain blowing. There was no one on the roof.

It was not twelve o’clock and I still had an hour. I went back to bed.

At one I prepared to make a thorough search of the house. Looking from one of my windows I thought I saw the shadowy figure of a man across the street, and I was comforted. Help was always close, I felt. And yet, as I stood inside my door in my rubber-soled shoes, with my ulster over my uniform and a revolver and my skeleton keys in my pockets, my heart was going very fast. The stupid story of the ghost came back and made me shudder, and the next instant I was remembering Mrs. Reed the night before, staring down into the lower hall with fixed glassy eyes.

My plan was to begin at the top of the house and work down. The thing was the more hazardous, of course, because Mr. Reed was most certainly somewhere about. I had no excuse for being on the third floor. Down below I could say I wanted tea, or hot water—anything. But I did not expect to find Mr. Reed up above. The terror, whatever it was, seemed to lie below.

Access to the third floor was not easy. The main staircase did not go up. To get there I was obliged to unlock the door at the rear of the hall with my own keys. I was working in bright light, trying my keys one after another, and watching over my shoulder as I did so. When the door finally gave it was a relief to slip into the darkness beyond, ghosts or no ghosts.

I am always a silent worker. Caution about closing doors and squeaking hinges is second nature to me. One learns to be cautious when one’s only chance of sleep is not to rouse a peevish patient and have to give a body-massage, as like as not, or listen to domestic troubles—“I said” and “he said”—until one is almost crazy.

So I made no noise. I closed the door behind me and stood blinking in the darkness. I listened. There was no sound above or below. Now houses at night have no terror for me. Every nurse is obliged to do more or less going about in the dark. But I was not easy. Suppose Mr. Reed should call me? True, I had locked my door and had the key in my pocket. But a dozen emergencies flew through my mind as I felt for the stair rail.

There was a curious odor through all the back staircase, a pungent, aromatic scent that, with all my familiarity with drugs, was strange to me. As I slowly climbed the stairs it grew more powerful. The air was heavy with it, as though no windows had been opened in that part of the house. There was no door at the top of this staircase, as there was on the second floor. It opened into an upper hall, and across from the head of the stairs was a door leading into a room. This door was closed. On this staircase, as on all the others, the carpet had been newly lifted. My electric flash showed the white boards and painted borders, the carpet tacks, many of them still in place. One, lying loose, penetrated my rubber sole and went into my foot.