The Sign of Four

Sir Arthur Conan Doyle's "The Sign of the Four" features the legendary detective Sherlock Holmes and his companion Dr. Watson as they investigate a mysterious case involving a missing father, a secret treasure, and a series of cryptic clues. When Mary Morstan seeks Holmes' help after her father's disappearance, they uncover a complex web of intrigue tied to a landmark map and a hidden past. The story slowly unravels as Holmes delves into the secrets connected to the title's "four," revealing a tale of mystery and adventure.