It is a good many years ago since the case I am about to record caused a sensation in London that has scarcely been equalled since. People who can no longer be considered middle aged will no doubt remember it well, but to the generation that has sprung up since then, it will be fresh, and, as I venture to think, not without considerable interest. Not only did the position of the parties concerned in the matter raise it above the level of the commonplace, but all the elements of the tragic drama were replete with the mystery, sensationalism, and even weirdness, so beloved of the general public. It was one of the early cases I was called upon to investigate. I was a young man at the time, and full of zeal and enthusiasm. I had but a short time previously contributed to one of the leading M

