The Sign of the Four

In London, 1888, Ms. Mary Morstan approaches Sherlock Holmes and Dr. John Watson with a perplexing case regarding her missing father, Captain Arthur Morstan, who vanished a decade earlier. She possesses six pearls, each received annually since 1882, and a mysterious letter that claims she is a wronged woman. As Holmes and Watson delve into the mystery, they encounter a web of intrigue involving a fortress map, poison darts, and high-speed boat chases. This captivating tale is the second novel in the Sherlock Holmes series by Sir Arthur Conan Doyle.