The Dead Secret is a novel published by Wilkie Collins, first in 1857 as a series in Charles Dickens' Household Words weekly magazine and later the same year as a book.
William Wilkie Collins (8 January 1824 – 23 September 1889) was an English novelist and playwright known especially for The Woman in White (1859), a mystery novel and early sensation novel, and for The Moonstone (1868), which established many of the ground rules of the modern detective novel and is also perhaps the earliest clear example of the police procedural genre.