“The Düsseldorf Assassin” is a detective novel by the outstanding British writer and playwright Edgar Wallace (1875–1932). Frau Kuhn was another victim of the Düsseldorf Assassin: she was killed with a dagger late in February evening. The police and journalists began an investigation, not suspecting that the killer was a well-known person in the city. Edgar Wallace is a popular detective author, novelist, screenwriter, and founder of the thriller genre. Edgar Wallace Richard Horatio is the author of many works: “The Mystery of the Pin,” “The Green Shooter”, “Face in the Dark”, “At Three Oaks”, “Avenger”, “Joker”, “Feathered Snake”, “Gate of Treason”, “Counterfeiter”, “Bandit” and others