‘The Leavenworth Case’ is a classic detective novel by Anna Katharine Green, first published in 1878. The story revolves around the murder of a wealthy industrialist, Horatio Leavenworth, and the subsequent investigation into the crime. The investigation is led by Ebenezer Gryce, a skilled detective, who must navigate the complex family dynamics and uncover the secrets that the Leavenworth family has been hiding. As Gryce delves deeper into the case, he uncovers a web of deception and betrayal that ultimately leads to a shocking revelation about the murderer’s identity. With its intricate plot, memorable characters, and twists and turns, ‘The Leavenworth Case’ is considered a landmark work in the history of detective fiction.