Leon Metz’s John Wesley Hardin: Dark Angel of Texas is a meticulously researched biography that offers a nuanced portrait of one of the most notorious figures of the American West. Hardin, reputed to have killed between 20 and 50 men, was a complex individual whose violent actions were often justified by his own code of honor. Metz delves into Hardin’s early life in post-Civil War Central Texas, his rise to infamy, and his eventual capture and imprisonment in 1878. The narrative is enriched by Hardin’s own writings, including his autobiography, which Metz scrutinizes to separate fact from fiction. The book is noted for its balanced approach, neither glorifying nor vilifying Hardin, but instead providing a comprehensive understanding of his life and times. Critics have praised Metz for his engaging writing style and thorough research, making this work a valuable resource for those interested in the complexities of frontier justice and the individuals who shaped it.