Mabel’s sudden resolution and disappearance were maddening. The mystery of her letter, too, was inscrutable. If she were really dreading lest some undesirable fact might be exposed, then she ought to have trusted me sufficiently to take me entirely into her confidence. I loved her, although I had never declared my passion, therefore, ignorant of the truth, she had treated me as I had desired, as a sincere friend. Yet, why had she not sought my aid? Women are such strange creatures, I reflected. Perhaps she loved that fellow after all!

A fevered, anxious week went by and Mabel made no sign. One night I left Reggie at the Devonshire about half-past eleven and walked the damp, foggy London streets until the roar of traffic died away, the cabs crawled and grew infrequent and the damp, muddy pavements were given over to the tramping constable and the shivering outcast. In the thick mist I wandered onward thinking deeply, yet more and more mystified at the remarkable chain of circumstances which seemed hour by hour to become more entangled.

On and on I had wandered, heedless of where my footsteps carried me, passing along Knightsbridge, skirting the Park and Kensington Gardens, and was just passing the corner of the Earl’s Court Road when some fortunate circumstance awakened me from my deep reverie, and I became conscious for the first time that I was being followed. Yes, there distinctly was a footstep behind me, hurrying when I hurried, slackening when I slackened. I crossed the road, and, before the long high wall of Holland Park I halted and turned. My pursuer came on a few paces, but drew up suddenly, and I could only distinguish against the glimmer of the street lamp through the London fog a figure long and distorted by the bewildering mist. The latter was not sufficiently dense to prevent me finding my way, for I knew that part of London well. Nevertheless, to be followed so persistently at such an hour was not very pleasant. I was suspicious that some tramp or thief who had passed me by and found me oblivious to my surroundings had turned and followed me with evil intent.

Forward I went again, but as soon as I had done so the light, even tread, almost an echo of my own, came on steadily behind me. I had heard weird stories of madmen who haunt the London streets at night and who follow unsuspecting foot-passengers aimlessly. It is one of the forms of insanity well known to specialists.

Again I recrossed the road, passing through Edwarde’s Square and out into Earl’s Court Road, thus retracing my steps back towards the High Street, but the mysterious man still followed me so persistently that in the mist, which in that part had grown thicker until it obscured the street lamps, I confess I experienced some uneasiness.

Presently, however, just as I was turning the corner into Lexham Gardens at a point where the fog had obscured everything, I felt a sudden rush, and at the same instant experienced a sharp stinging sensation behind the right shoulder. The shock was such a severe one that I cried out, turning next instant upon my assailant, but so agile was he that, ere I could face him, he had eluded me and escaped.

I heard his receding footsteps—for he was running away down the Earl’s Court Road—and shouted for the police. But there was no response. The pain in my shoulder became excruciating. The unknown man had struck me with a knife, and blood was flowing, for I felt it damp and sticky upon my hand.

Again I shouted “Police! Police!” until at last I heard an answering voice in the mist and walked in its direction. After several further shouts I discovered the constable and to him related my strange experience.

He held his bull’s eye close to my back and said—

“Yes, there’s no doubt, sir, you’ve been stabbed! What kind of a man was he?”