“Go on; excellent mixture,” said I.

He threw a fresh log on the fire.

“It’s a longish story,” he said. “You may stop me as soon as you’ve had enough. But there will come a point for which I claim your consideration. You, who cling to your ‘before’ and ‘after,’ has it ever occurred to you how difficult it is to say when an incident takes place? Say that a man commits some crime of violence, can we not, with a good deal of truth, say that he really commits that crime when he definitely plans and determines upon it, dwelling on it with gusto? The actual commission of it, I think we can reasonably argue, is the mere material sequel of his resolve: he is guilty of it when he makes that determination. When, therefore, in the term of ‘before’ and ‘after,’ does the crime truly take place? There is also in my story a further point for your consideration. For it seems certain that the spirit of a man, after the death of his body, is obliged to re-enact such a crime, with a view, I suppose we may guess, to his remorse and his eventual redemption. Those who have second sight have seen such re-enactments. Perhaps he may have done his deed blindly in this life; but then his spirit re-commits it with its spiritual eyes open, and able to comprehend its enormity. So, shall we view the man’s original determination and the material commission of his crime only as preludes to the real commission of it, when with eyes unsealed he does it and repents of it?... That all sounds very obscure when I speak in the abstract, but I think you will see what I mean, if you follow my tale. Comfortable? Got everything you want? Here goes, then.”

He leaned back in his chair, concentrating his mind, and then spoke:

“The story that I am about to tell you,” he said, “had its beginning a month ago, when you were away in Switzerland. It reached its conclusion, so I imagine, last night. I do not, at any rate, expect to experience any more of it. Well, a month ago I was returning late on a very wet night from dining out. There was not a taxi to be had, and I hurried through the pouring rain to the tube-station at Piccadilly Circus, and thought myself very lucky to catch the last train in this direction. The carriage into which I stepped was quite empty except for one other passenger, who sat next the door immediately opposite to me. I had never, to my knowledge, seen him before, but I found my attention vividly fixed on him, as if he somehow concerned me. He was a man of middle age, in dress-clothes, and his face wore an expression of intense thought, as if in his mind he was pondering some very significant matter, and his hand which was resting on his knee clenched and unclenched itself. Suddenly he looked up and stared me in the face, and I saw there suspicion and fear, as if I had surprised him in some secret deed.

“At that moment we stopped at Dover Street, and the conductor threw open the doors, announced the station and added, ‘Change here for Hyde Park Corner and Gloucester Road.’ That was all right for me since it meant that the train would stop at Brompton Road, which was my destination. It was all right apparently, too, for my companion, for he certainly did not get out, and after a moment’s stop, during which no one else got in, we went on. I saw him, I must insist, after the doors were closed and the train had started. But when I looked again, as we rattled on, I saw that there was no one there. I was quite alone in the carriage.

“Now you may think that I had had one of those swift momentary dreams which flash in and out of the mind in the space of a second, but I did not believe it was so myself, for I felt that I had experienced some sort of premonition or clairvoyant vision. A man, the semblance of whom, astral body or whatever you may choose to call it, I had just seen, would sometime sit in that seat opposite to me, pondering and planning.”

“But why?” I asked. “Why should it have been the astral body of a living man which you thought you had seen? Why not the ghost of a dead one?”

“Because of my own sensations. The sight of the spirit of someone dead, which has occurred to me two or three times in my life, has always been accompanied by a physical shrinking and fear, and by the sensation of cold and of loneliness. I believed, at any rate, that I had seen a phantom of the living, and that impression was confirmed, I might say proved, the next day. For I met the man himself. And the next night, as you shall hear, I met the phantom again. We will take them in order.

“I was lunching, then, the next day with my neighbour Mrs. Stanley: there was a small party, and when I arrived we waited but for the final guest. He entered while I was talking to some friend, and presently at my elbow I heard Mrs. Stanley’s voice—