The Sign of The Four

A young woman, Mary Morstan, seeks the help of Sherlock Holmes after her father vanished a decade ago. She has received a precious pearl annually from an unknown sender, along with a cryptic message labeling her as "a wronged woman." Intrigued, Holmes and Watson are drawn into a web of murders, betrayals, and hidden treasures as they investigate the mysterious circumstances surrounding her father's disappearance. First published in 1880, this novel showcases Arthur Conan Doyle's masterful storytelling and deepens the iconic detective's legacy.