“Well, let us say for the moment that it was not a dream exactly, but a hallucination. Whichever it was, in any case it haunted me; for months, I think, it was never quite out of my mind, but lingered somewhere in the dusk of consciousness, sometimes sleeping quietly, so to speak, but sometimes stirring in its sleep. It was no good my telling myself that I was disquieting myself in vain, for it was as if something had actually entered into my very soul, as if some seed of horror had been planted there. And as the weeks went on the seed began to sprout, so that I could no longer even tell myself that that vision had been a moment’s disorderment only. I can’t say that it actually affected my health. I did not, as far as I know, sleep or eat insufficiently, but morning after morning I used to wake, not gradually and through pleasant dozings into full consciousness, but with absolute suddenness, and find myself plunged in an abyss of despair. Often too, eating or drinking, I used to pause and wonder if it was worth while. “Eventually I told two people about my trouble, hoping that perhaps the mere communication would help matters, hoping also, but very distantly, that though I could not believe at present that digestion or the obscurities of the nervous system were at fault, a doctor by some simple dose might convince me of it. In other words I told my wife, who laughed at me, and my doctor who laughed also, and assured me that my health was quite unnecessarily robust. At the same time he suggested that change of air and scene does wonders for the delusions that exist merely in the imagination. He also told me, in answer to a direct question, that he would stake his reputation on the certainty that I was not going mad. “Well, we went up to London as usual for the season, and though nothing whatever occurred to remind me in any way of that single moment on Christmas Eve, the reminding was seen to all right, the moment itself took care of that, for instead of fading as is the way of sleeping or waking dreams, it grew every day more vivid, and ate, so to speak, like some corrosive acid into my mind, etching itself there. And to London succeeded Scotland. “I took last year for the first time a small forest up in Sutherland, called Glen Callan, very remote and wild, but affording excellent stalking. It was not far from the sea, and the gillies used always to warn me to carry a compass on the hill, because sea-mists were liable to come up with frightful rapidity, and there was always a danger of being caught by one, and of having perhaps to wait hours till it cleared again. This at first I always used to do, but, as every one knows, any precaution that one takes which continues to be unjustified gets gradually relaxed, and at the end of a few weeks, since the weather had been uniformly clear, it was natural that, as often as not, my compass remained at home.