While at Hyde Park Corner tube station, Anne Beddingfeld sees a man electrocuted after apparently losing his balance and falling onto the rails. A man in a brown suit examines the lifeless body and makes a hasty exit, inadvertently leaving behind a cryptic note. What is the significance of "17.122 Kilmorden Castle" and who is the man in the brown suit? Ruled an accidental death by Scotland Yard, Anne is not convinced. Her spirited quest to unravel the mystery leads her aboard a South Africa-bound ocean liner and into the murky world of nefarious diamond thieves and other dubious characters.

Part murder mystery and part international crime thriller, this clever, labyrinthine tale entertains at every turn. This Warbler Classics edition includes a detailed biographical note.