Arthur Conan Doyle, The Sign of the Four, download free

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

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