Download free book' The Sign of the Four'
![Arthur Conan Doyle, The Sign of the Four, download free](/content/19/06001041icon.jpg)
Arthur Conan Doyle
The Sign of the Four
Series: Detective classic books
The story takes place in 1888. A young lady, Mary Morstan, comes to Sherlock Holmes and asks the detective to help solve the mystery: for six years now, once a year, Miss Morstan has received an anonymous package with a magnificent pearl.
![Arthur Conan Doyle - The Sign of the Four](/content/19/06001041cover.jpg)