Proud of the success of my device, and satisfied that the danger was over for that day (it being well on to twelve o’clock), I said a few words more to the doctor, who had followed me into the room, and then prepared to take my departure. But the young lady was more agile than I. Saying something about a very pressing engagement which would not allow her to consult the doctor that day, she hurried ahead of me and ran quickly down the long hall. The doctor looked astonished, but dismissed the matter with a shrug; while, with the greatest desire to follow her, I stood hesitating on the threshold, when my eye fell on a small object lying under the chair on which she had been sitting. It was the little leathern bag I had seen hanging at her side. Catching it up, I explained that I would run after the young lady and restore it; and glad of an excuse which would enable me to follow her through the streets without risking the suspicion of impropriety, I hastened down the stairs and happily succeeded in reaching the pavement before her skirts whisked round the corner. I was therefore but a few paces behind her, which distance I took good care to preserve. III. MADAME. My motive in following this young girl was not so much to restore her property, as to see where her engagement was taking her. I felt confident that none of the three persons who had shown interest in the box was the prime mover in an affair so important; and it was necessary above all things to find out who the prime mover was. So I followed the girl. She led me into a doubtful quarter of the town. As the crowd between us diminished and we reached a point where we were the only pedestrians on the block we were then traversing, I grew anxious lest she should turn and see me before arriving at her destination. But she evidently was without suspicion, for she passed without any hesitation up a certain stoop in the middle of this long block and entered an open door on which a brass plate was to be seen, inscribed with this one word in large black letters: “MADAME.” This was odd; and as I had no inclination to encounter any “madame” without some hint as to her character and business, I looked about me for some one able and willing to give me the necessary information. An upholsterer’s shop in an opposite basement seemed to offer me the opportunity I wanted. Crossing the street, I saluted the honest-looking man I met in the doorway, and pointing out madame’s house, asked what was done over there. He answered with a smile. “Go and see,” he said; “the door’s open. Oh, they don’t charge anything,” he made haste to protest, misunderstanding, no doubt, my air of hesitation. “I was in there once myself. They all sit round and she talks; that is, if she feels like it. It is all nonsense, you know, sir; no good in it.” “But is there any harm?” I asked. “Is the place reputable and safe?”