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.