“I had been living there for about two months when, one night in July on returning to my rooms, I saw with a good deal of surprise a light shining through the windows of the other apartment on the same floor, which I had supposed to be uninhabited. The effect of this light was extraordinary. It lit up with a pale, yet perfectly distinct, reflection, parts of the balcony, the street below, and a bit of the neighboring fields.
“I thought to myself, ‘Aha! I have a neighbor.”
“The idea indeed was not altogether agreeable, for I had been rather proud of my exclusive proprietorship. On reaching my bedroom I passed noiselessly out upon the balcony, but already the light had been extinguished. So I went back into my room, and sat down to read for an hour or two. From time to time I seemed to hear about me, as though within the walls, light footsteps; but after finishing my book I went to bed, and speedily fell asleep.
“About midnight I suddenly awoke with a curious feeling that something was standing beside me. I raised myself in bed, lit a candle, and this is what I saw. In the middle of the room stood an immense cat gazing upon me with phosphorescent eyes, and with its back slightly arched. It was a magnificent Angora, with long fur and a fluffy tail, and of a remarkable color—exactly like that of the yellow silk that one sees in cocoons—so that, as the light gleamed upon its coat, the animal seemed to be made of gold.
“It slowly moved toward me on its velvety paws, softly rubbing its sinuous body against my legs. I leaned over to stroke it, and it permitted my caress, purring, and finally leaping upon my knees. I noticed then that it was a female cat, quite young, and that she seemed disposed to permit me to pet her as long as ever I would. Finally, however, I put her down upon the floor, and tried to induce her to leave the room; but she leaped away from me and hid herself somewhere among the furniture, though as soon as I had blown out my candle, she jumped upon my bed. Being sleepy, however, I didn’t molest her, but dropped off into a doze, and the next morning when I awoke in broad daylight I could find no sign of the animal at all.
“Truly, the human brain is a very delicate instrument, and one that is easily thrown out of gear. Before I proceed, just sum up for yourselves the facts that I have mentioned: a light seen and presently extinguished in an apartment supposed to be uninhabited; and a cat of a remarkable color, which appeared and disappeared in a way that was slightly mysterious. Now there isn’t anything very strange about that, is there? Very well. Imagine, now, that these unimportant facts are repeated day after day and under the same conditions throughout a whole week, and then, believe me, they become of importance enough to impress the mind of a man who is living all alone, and to produce in him a slight disquietude such as I spoke of in commencing my story, and such as is always caused when one approaches the sphere of the unknown. The human mind is so formed that it always unconsciously applies the principle of the causa sufficiens. For every series of facts that are identical, it demands a cause, a law; and a vague dismay seizes upon it when it is unable to guess this cause and to trace out this law.
“I am no coward, but I have often studied the manifestation of fear in others, from its most puerile form in children up to its most tragic phase in madmen. I know that it is fed and nourished by uncertainties, although when one actually sets himself to investigate the cause, this fear is often transformed into simple curiosity.
“I made up my mind, therefore, to ferret out the truth. I questioned my caretaker, and found that he knew nothing about my neighbors. Every morning an old woman came to look after the neighboring apartment; my caretaker had tried to question her, but either she was completely deaf or else she was unwilling to give him any information, for she had refused to answer a single word. Nevertheless, I was able to explain satisfactorily the first thing that I had noted—that is to say, the sudden extinction of the light at the moment when I entered the house. I had observed that the windows next to mine were covered only by long lace curtains; and as the two balconies were connected, my neighbor, whether man or woman, had no doubt a wish to prevent any indiscreet inquisitiveness on my part, and therefore had always put out the light on hearing me come in. To verify this supposition, I tried a very simple experiment, which succeeded perfectly. I had a cold supper brought in one day about noon by my servant, and that evening I did not go out. When darkness came on, I took my station near the window. Presently I saw the balcony shining with the light that streamed through the windows of the neighboring apartment. At once I slipped quietly out upon my balcony, and stepped softly over the ironwork that separated the two parts. Although I knew that I was exposing myself to a positive danger, either of falling and breaking my neck, or of finding myself face to face with a man, I experienced no perturbation. Reaching the lighted window without having made the slightest noise, I found it partly open; its curtains, which for me were quite transparent since I was on the dark side of the window, made me wholly invisible to any one who should look toward the window from the interior of the room.
“I saw a vast chamber furnished quite elegantly, though it was obviously out of repair, and lighted by a lamp suspended from the ceiling. At the end of the room was a low sofa upon which was reclining a woman who seemed to me to be both young and pretty. Her loosened hair fell over her shoulders in a rain of gold. She was looking at herself in a hand mirror, patting herself, passing her arms over her lips, and twisting about her supple body with a curiously feline grace. Every movement that she made caused her long hair to ripple in glistening undulations.
“As I gazed upon her I confess that I felt a little troubled, especially when all of a sudden the young girl’s eyes were fixed upon me—strange eyes, eyes of a phosphorescent green that gleamed like the flame of a lamp. I was sure that I was invisible, being on the dark side of a curtained window. That was simple enough, yet nevertheless I felt that I was seen. The girl, in fact, uttered a cry, and then turned and buried her face in the sofa-pillows.