Which detective appears in Edgar Allan Poe’s short story “The Murders in the Rue Morgue”?

Edgar Allan Poe’s short story “The Murders in the Rue Morgue” features the detective C. Auguste Dupin. First published in 1841, it is widely regarded as a foundational detective story and helped establish conventions later associated with the genre.

Dupin investigates the violent deaths of Madame L’Espanaye and her daughter in Paris. The police cannot explain the locked-room circumstances or identify the killer, but Dupin reconstructs the crime through close reasoning, newspaper reports, and attention to seemingly impossible details.

Poe called the story a “tale of ratiocination,” emphasizing analytical reasoning rather than ordinary adventure. Dupin is not a police officer; he is an independent investigator who lives in Paris with the unnamed narrator, who records the case.

Dupin influenced later fictional detectives, including Arthur Conan Doyle’s Sherlock Holmes. The narrator’s role also resembles Dr. Watson’s function, although Poe’s narrator remains unnamed. Dupin returns in two later Poe stories: “The Mystery of Marie Rogêt” and “The Purloined Letter.”