The case of the prodigal daughter

A plea from Lady Marport to find her missing seventeen-year-old daughter Beryl, plunges Ludovic Travers into an investigation in the Soho underworld of blackmail, thuggery and murder. By chance too, he solves a daring drug robbery which had taken place some months earlier.
Who was the mysterious bearded man whom the missing girl had known the year before and whom Travers suspects may be connected with her disappearance? What was his connection with the Painter Academy and with the man whom Travers meets during the course of his inquiries, whose face was vaguely familiar? And why does Lady Marport suddenly and most surprisingly call a halt to the investigation? These are just a few of the problems which face Ludovic Travers in another masterly story of suspense by Christopher Bush.