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.
A young speculator, Crewe, and his actress friend, Ella Creed, receive strange visiting cards—on them is a drawn winged serpent and a warning—after which a string of robberies begins.