Edgar Wallace 
Ringer 

A notorious assassin returns to London to avenge the death of his sister in this classic crime thriller.Word had come from Australia that the Ringer was dead. The body of the legendary killer had been pulled from Sydney Harbor—or so it was thought.In reality, it is the Ringer’s sister whose fate is a watery grave. Left in the care of Maurice Meister, a London lawyer for whom she worked as a secretary, she has turned up dead in the Thames—and now the Ringer is on a mission of vengeance.The vigilante walks the streets of the city again, and if the past is any indication, Inspector Wembury of Scotland Yard won’t have an easy time tracking him down. To complicate matters further, Meister is currently employed by the socially prominent family of the woman Wembury loves . . . The basis for no less than five European films, this suspenseful British novel comes from one the early twentieth century’s most popular writers of crime fiction.