The Boscombe Valley Mystery by Arthur Conan Doyle

A man is found murdered near a lake, and his son is arrested based on circumstantial evidence. Holmes digs deeper and uncovers a hidden past involving crime and blackmail in Australia. The plot features a seemingly obvious case that unravels into a tale of buried secrets. With sharp deduction, Holmes reveals the true killer and spares the innocent. It’s a solid whodunit with moral complexity and a satisfying twist.