The Murders in the Rue Morgue from "The Three Princes of Serendip", an Italian rendition of Amir Khusro's "Hasht-Bihisht". Poe may also have been expanding on previous analytical works of his own including the essay on "Maelzel's Chess Player" and the comedic "Three Sundays in a Week". As for the twist in the plot, Poe was likely inspired by the crowd reaction to an orangutan on display at the Masonic Hall in Philadelphia in July 1839. The name of the main character may have been inspired from the "Dupin" character in a series of stories first published in "Burton's Gentleman's Magazine" in 1828 called "Unpublished passages
The Murders in the Rue Morgue brought it back to Paris, but had trouble keeping it under control. When he saw the orangutan attempting to shave its face with his straight razor, imitating his morning grooming, it fled into the streets and reached the Rue Morgue, where it climbed up and into the house. The orangutan seized the mother by the hair and was waving the razor, imitating a barber; when she screamed in fear, it flew into a rage, ripped her hair out, slashed her throat, and strangled the daughter. The sailor climbed up the lightning rod in an attempt to catch the animal, and