Half a dozen times I placed my hand upon his heart, whence the blood was slowly oozing, but there was no movement.

My investigations showed that he was about twenty-eight years of age; probably fair, by the softness of the hair and moustache, with even teeth, rather sharp jawbones and cheeks a trifle thin. Having ascertained this much, I groped forward with both hands in the direction of the room wherein the woman had been so swiftly done to death. It was in darkness, I have no doubt, but to me darkness was of no account, for I was ever in eternal gloom. The furniture over which I stumbled here and there was covered with silk brocade, the woodwork being of that smoothness which had led me to believe that it must be gilded. It was without doubt a fine spacious drawing-room where I had been lying, for the dimensions of the place were quite unusual, and the objects with which my hands came into contact were always of a character magnificent, and in keeping with the grandeur of the place. The house was evidently one of those fine mansions with which the West End of London abounds, and certainly this apartment, even though I could not see it, was the acme of comfort and luxury.

I at last found the entrance to the adjoining room, but the door was locked.

This sudden check to my investigations caused me to pause. That a woman had been first struck down by a cowardly blow appeared evident. The loud agonised shriek which had emanated from that inner room was, I felt convinced, that of the tender, sweet-voiced woman who had administered to my wants. It seemed, now that I recollected, as though she had been seated at the piano when the fatal blow was dealt. The scream and the cessation of the music had occurred simultaneously.

The theory impressed itself upon me that a woman was responsible for both crimes. It was a woman who had stood panting near me, who had noiselessly tested me to ascertain whether I could distinguish objects about me, and who had afterwards left the house. My blindness had, no doubt, saved my life.

Before leaving she had, for some unknown reason, locked the communicating door and taken the key. But upon the air, after she had gone, there lingered the subtle fragrance of peau d’Espagne, the same perfume used by the woman whose cool palm had soothed my brow. Nevertheless, it seemed impossible that a woman could thus commit a double crime so swiftly and with such force as to drive a knife to the heart of a man and fling him back upon me—all in silence, without the utterance of one single word.

With my eyes only a void of blackness, this mystery was bewildering, and rendered the more tantalising by my inability to gaze about me. I had been present at the enactment of a terrible drama, but had not witnessed it, and could not, therefore, recognise either culprit or victims.

Again I searched the great handsome room, in order to rivet all its details upon my memory. It had three long windows opening down to the floor, which showed that it was situated in the back of the house, otherwise they must have opened upon the street. In one corner was a pedestal, whereon stood a marble bust of a dancing-woman, like those I had seen in the sculptor’s at Pisa before the days of my darkness. There were tables, too, with glass tops wherein, I supposed, were curios and bric-à-brac, and before the great fireplace was stretched a tiger-skin, with the paws preserved.

While groping there, however, my hand came into contact with something which I found was a narrow, three-edged knife, so sharp that I cut my finger while feeling it. It had a cross-hilt, and the blade was thin and triangular, tapering to a point. The shape I knew to be Italian, one of those Florentine stilettos used long ago in the Middle Ages, a wound from which was almost certain to be fatal. The Italians have long ago brought the use of the knife to a fine art, and even to-day, murders by stabbing are the most usual occurrences reported in their newspapers. The blade of this antique weapon was about nine inches long, and the handle velvet-covered and bound with wire, probably either gold or silver. The point was sharp as a needle.

My first impulse was to take possession of it; but, on reflection, I saw that if I did so grave suspicion might possibly fall upon me. I might even be charged with the murder, especially as I had already in my pocket the dead’s man stud and pencil-case. This thought caused me to throw down the stiletto, and, continuing my search, I at length found the door which gave egress to the place.