ago, and I accordingly managed to be on the look-out in company with my cicerone at a quarter to ten, and the hour and the lady came with equal punctuality. My friend and I were standing under an archway, a little way back from the street, but she saw us, and gave me a glance that I shall be long in forgetting. That look was quite enough for me; I knew Miss Raymond to be Mrs. Herbert; as for Mrs. Beaumont she had quite gone out of my head. She went into the house, and I watched it till four o'clock, when she came out, and then I followed her. It was a long chase, and I had to be very careful to keep a long way in the background, and yet not lose sight of the woman. She took me down to the Strand, and then to Westminster, and then up St. James's Street, and along Piccadilly. I felt queerish when I saw her turn up Ashley Street; the thought that Mrs. Herbert was Mrs. Beaumont came into my mind, but it seemed too improbable to be true. I waited at the corner, keeping my eye on her all the time, and I took particular care to note the house at which she stopped. It was the house with the gay curtains, the house of flowers, the house out of which Crashaw came the night he hanged himself in his garden. I was just going away with my discovery, when I saw an empty carriage come round and draw up in front of the house, and I came to the conclusion that Mrs. Herbert was going out for a drive, and I was right. I took a hansom and followed the carriage into the Park. There, as it happened, I met a man I know, and we stood talking together a little distance from the carriage-way, to which I had my back. We had not been there for ten minutes when my friend took off his hat, and I glanced round and saw the lady I had been following all day. "Who is that?" I said, and his answer was, "Mrs. Beaumont; lives in Ashley Street." Of course there could be no doubt after that. I don't know whether she saw me, but I don't think she did. I went home at once, and, on consideration, I thought that I had a sufficiently good case with which to go to Clarke.' 'Why to Clarke?' 'Because I am sure that Clarke is in possession of facts about this woman, facts of which I know nothing.' 'Well, what then?' Mr. Villiers leaned back in his chair and looked reflectively at Austin for a moment before he answered: 'My idea was that Clarke and I should call on Mrs. Beaumont.' 'You would never go into such a house as that? No, no, Villiers, you cannot do it. Besides, consider; what result ...' 'I will tell you soon. But I was going to say that my information does not end here; it has been completed in an extraordinary manner.