The Sign of the Four

Set against the backdrop of the East India Company and the Indian Rebellion of 1857, the narrative weaves a complex tale of stolen treasure and a secret agreement among convicts and corrupt guards. This installment deepens Sherlock Holmes' character, revealing his struggles with addiction, while also introducing Mary Morstan, who becomes Doctor Watson's future wife. The intricate plot combines adventure and personal dilemmas, offering a richer exploration of Holmes and his relationships.