Boone, as I have told you, was arrested and taken to the station, but it could not be shown that there had ever before been anything against him. He had for years been known as a professional beggar, but his life appeared to have been a very quiet and innocent one. There the matter stands at present, and the questions which have to be solved—what Neville St. Clair was doing in the opium den, what happened to him when there, where is he now, and what Hugh Boone had to do with his disappearance—are all as far from a solution as ever. I confess that I cannot recall any case within my experience which looked at the first glance so simple and yet which presented such difficulties.”