The Musgrave Ritual by Arthur Conan Doyle

Holmes recounts an early case in which a centuries-old family ritual leads to a mysterious disappearance. By decoding the strange verses of the ritual, Holmes discovers a hidden passage, a long-lost treasure, and a grim secret buried beneath the estate. The plot is rich with atmosphere, history, and clever deduction. It’s one of the most intriguing cases, revealing Holmes’s brilliance before he became famous. A perfect blend of mystery and gothic tradition.