The Sign of the Four

Name: The Sign of the Four
Author: Arthur Conan Doyle

Sherlock Holmes and Dr. Watson investigate a mysterious set of pearls and a hidden treasure tied to a secret pact among four convicts.

Books mentioned in The Sign of the Four (2)

The Martyrdom of Man by Winwood Reade: “Let me recommend this book,--one of the most remarkable ever penned. It is Winwood Reade's 'Martyrdom of Man.”
A Study in Scarlet by Arthur Conan Doyle: “I even embodied it in a small brochure with the somewhat fantastic title of 'A Study in Scarlet.'”