The Mystery of the Double

Edgar Wallace (1875–1932) — an English writer, playwright, screenwriter, and journalist. A contemporary of Arthur Conan Doyle, who surpassed Doyle in popularity for a time as the creator of the very Sherlock Holmes. Edgar Wallace is one of the well-known English authors of the detective genre.

The novel is written in the meticulous way characteristic of English authors: a scrupulous study of motives and methods for uncovering a crime.