“The Avenger” is a crime novel by the outstanding British writer and playwright Edgar Wallace (1875–1932). Police captain Michael Brixen has to investigate the case of the serial killer “Bounty Hunter”: each time the latter warns the police about a new victim, leaving a piece of paper and a box in which lies the head of an unfortunate victim. Edgar Wallace is a popular detective author, prose writer, screenwriter, founder of the thriller genre. Edgar Wallace Richard Horatio is the author of many works: “The Joker”, “The Feathered Serpent”, “The Gate of Treason”, “ Counterfeiter", "Bandit", "Dusseldorf Assassin", "The Mystery of the Pin", "Green Shooter", "Face in the Dark", "At Three Oaks" and others.