a student of the life of London, who finds something rare and choice in its very aspect. Salisbury turned away in disgust, and settled himself in the easy-chair, upholstered in a bright shade of green, and decked with yellow gimp, which was the pride and attraction of the apartments. Here he composed himself to his morning’s occupation—the perusal of a novel that dealt with sport and love in a manner that suggested the collaboration of a stud-groom and a ladies’ college. In an ordinary way, however, Salisbury would have been carried on by the interest of the story up to lunch-time, but this morning he fidgeted in and out of his chair, took the book up and laid it down again, and swore at last to himself and at himself in mere irritation. In point of fact the jingle of the paper found in the archway had “got into his head,” and do what he would he could not help muttering over and over, “Once around the grass, and twice around the lass, and thrice around the maple tree.” It became a positive pain, like the foolish burden of a music-hall song, everlastingly quoted, and sung at all hours of the day and night, and treasured by the street-boys as an unfailing resource for six months together. He went out into the streets, and tried to forget his enemy in the jostling of the crowds and the roar and clatter of the traffic, but presently he would find himself stealing quietly aside, and pacing some deserted byway, vainly puzzling his brains, and trying to fix some meaning to phrases that were meaningless. It was a positive relief when Thursday came, and he remembered that he had made an appointment to go and see Dyson; the flimsy reveries of the self-styled man of letters appeared entertaining when compared with this ceaseless iteration, this maze of thought from which there seemed no possibility of escape. Dyson’s abode was in one of the quietest of the quiet streets that led down from the Strand to the river, and when Salisbury passed from the narrow stairway into his friend’s room, he saw that the uncle had been beneficent indeed. The floor glowed and flamed with all the colours of the East; it was, as Dyson pompously remarked, “a sunset in a dream,” and the lamplight, the twilight of London streets, was shut out with strangely worked curtains, glittering here and there with threads of gold. In the shelves of an oak armoire stood jars and plates of old French china, and the black and white of etchings not to be found in the Haymarket or in Bond Street, stood out against the splendour of a Japanese paper. Salisbury sat down on the settle by the hearth, and sniffed the mingled fumes of incense and tobacco, wondering and dumb before all this splendour after the green rep and the oleographs, the gilt-framed mirror, and the lustres of his own apartment.
“I am glad you have come,” said Dyson. “Comfortable little room, isn’t it? But you don’t look very well, Salisbury. Nothing disagreed with you, has it?”
“No; but I have been a good deal bothered for the last few days. The fact is I had an odd kind of—of—adventure, I suppose I may call it, that night I saw you, and it has worried me a good deal. And the provoking part of it is that it’s the merest nonsense—but, however, I will tell you all about it, by and by. You were going to let me have the rest of that odd story you began at the restaurant.”
“Yes. But I am afraid, Salisbury, you are incorrigible. You are a slave to what you call matter of fact. You know perfectly well that in your heart you think the oddness in that case is of my making, and that it is all really as plain as the police reports. However, as I have begun, I will go on. But first we will have something to drink, and you may as well light your pipe.”
Dyson went up to the oak cupboard, and drew from its depths a rotund bottle and two little glasses, quaintly gilded.
“It’s Benedictine,” he said. “You’ll have some, won’t you?”
Salisbury assented, and the two men sat sipping and smoking reflectively for some minutes before Dyson began.
“Let me see,” he said at last, “we were at the inquest, weren’t we? No, we had done with that. Ah, I remember. I was telling you that on the whole I had been successful in my inquiries, investigation, or whatever you like to call it, into the matter. Wasn‘t that where I left off?”
“Yes, that was it. To be precise, I think ‘though’ was the last word you said on the matter.”
“Exactly. I have been thinking it all over since the other night, and I have come to the conclusion that that ‘though’ is a very big ‘though’ indeed. Not to put too fine a point on it, I have had to confess that what I found out, or thought I found out, amounts in reality to nothing. I am as far away from the heart of the case as ever. However, I may as well tell you what I do know. You may remember my saying that I was impressed a good deal by some remarks of one of the doctors who gave evidence at the inquest. Well, I determined that my first step must be to try if I could get something more definite and intelligible out of that doctor. Somehow or other I managed to get an introduction to the man, and he gave me an appointment to come and see him. He turned out to be a pleasant, genial fellow; rather young and not in the least like the typical medical man, and he began the conference by offering me whisky and cigars. I didn’t think it worth while to beat about the bush, so I began by saying that part of his evidence at the Harlesden Inquest struck me as very peculiar, and I gave him the printed report, with the sentences in question underlined. He just glanced at the slip, and gave me a queer look. ‘It struck you as peculiar, did it?’ said he. ‘Well, you must remember that the Harlesden case was very peculiar. In fact, I think I may safely say that in some features it was unique—quite unique.’ ‘Quite so,’ I replied, ‘and that’s exactly why it interests me, and why I want to know more about it. And I thought that if anybody could give me any information it would be you. What is your opinion of the matter?’
“It was a pretty downright sort of question, and my doctor looked rather taken aback.
“‘Well,’ he said, ‘as I fancy your motive in inquiring into the question must be mere curiosity, I think I may tell you my opinion with tolerable freedom. So, Mr., Mr. Dyson? if you want to know my theory, it is this: I believe that Dr. Black killed his wife.’
“‘But the verdict,’ I answered, ‘the verdict was given from your own evidence.’
“‘Quite so; the verdict was given in accordance with the evidence of my colleague and myself, and, under the circumstances, I think the jury acted very sensibly. In fact, I don’t see what else they could have done. But I stick to my opinion, mind you, and I say this also. I don’t wonder at Black’s doing what I firmly believe he did. I think he was justified.’
“‘Justified! How could that be?’ I asked. I was astonished, as you may imagine, at the answer I had got. The doctor wheeled round his chair and looked steadily at me for a moment before he answered.
“‘I suppose you are not a man of science yourself? No; then it would be of no use my going into detail. I have always been firmly opposed myself to any partnership between physiology and psychology. I believe that both are bound to suffer. No one recognizes more decidedly than I do the impassable gulf, the fathomless abyss that separates the world of consciousness from the sphere of matter. We know that every change of consciousness is accompanied by a rearrangement of the molecules in the grey matter; and that is all. What the link between them is, or why they occur together, we do not know, and most authorities believe that we never can know. Yet, I will tell you that as I did my work, the knife in my hand, I felt convinced, in spite of all theories, that what lay before me was not the brain of a dead woman—not the brain of a human being at all. Of course I saw the face; but it was quite placid, devoid of all expression. It must have been a beautiful face, no doubt, but I can honestly say that I would not have looked in that face when there was life behind it for a thousand guineas, no, nor for twice that sum.’
“‘My dear sir,’ I said, ‘you surprise me extremely. You say that it was not the brain of a human being. What was it then?’
“‘The brain of a devil.’ He spoke quite coolly, and never moved a muscle. ‘The brain of a devil,’ he repeated, ‘and I have no doubt that Black found
