"The Murders in the Rue Morgue" is a short story by Edgar Allan Poe published in Graham's Magazine in 1841. It has been described as the first modern detective story; Poe referred to it as one of his "tales of ratiocination". Dupin is not a professional detective; he decides to investigate the murders in the Rue Morgue for his personal amusement. He also has a desire for truth and to prove a falsely accused man innocent. His interests are not financial and he even declines a monetary reward from the owner of the orangutan. The revelation of the actual murderer removes the crime, as neither the orangutan nor its owner can be held responsible. Poe scholar Arthur Hobson Quinn speculates that later detective stories might have set up M. Le Bon, the suspect who is arrested, as appearing guilty as a red herring, though Poe chose not to.
Poe wrote "The Murders in the Rue Morgue" at a time when crime was at the forefront in people's minds due to urban development. London had recently established its first professional police force and American cities were beginning to focus on scientific police work as newspapers reported murders and criminal trials.
The tale has an underlying metaphor for the battle of brains vs. brawn. Physical strength, depicted as the orangutan as well as its owner, stand for violence: the orangutan is a murderer, while its owner admits he has abused the animal with a whip. The analyst's brainpower overcomes their violence. The story also contains Poe's often-used theme of the death of a beautiful woman, which he called the "most poetical topic in the world".
Dupin's method
Poe defines Dupin's method, ratiocination, using the example of a card player: "the extent of information obtained; lies not so much in the validity of the inference as in the quality of the observation". Poe then provides a narrative example where Dupin explains how he knew the narrator was thinking about the actor Chantilly. Dupin then applies his method to the solving of this crime.
Dupin's method emphasizes the importance of reading and the written word. The newspaper accounts pique his curiosity; he learns about orangutans from a written account by "Cuvier" — likely Georges Cuvier, the French zoologist. This method also engages the reader, who follows along by reading the clues himself. Poe also emphasizes the power of the spoken word. When Dupin asks the sailor for information about the murders, the sailor himself acts out a partial death: "The sailor's face flushed up as if he were struggling with suffocation... the next moment he fell back into his seat, trembling violently, and with the countenance of death itself".
Literary significance and reception
thumb|Illustration by [[Aubrey Beardsley of "The Murders in the Rue Morgue", 1895]]
Poe biographer Jeffrey Meyers sums up the significance of "The Murders in the Rue Morgue" by saying it "changed the history of world literature". Poe's role in the creation of the detective story is reflected in the Edgar Awards, given annually by the Mystery Writers of America.
"The Murders in the Rue Morgue" also established many tropes that would become common elements in mystery fiction: the eccentric but brilliant detective, the bumbling constabulary, the first-person narration by a close personal friend. Poe also portrays the police in an unsympathetic manner as a sort of foil to the detective. Poe also initiates the storytelling device where the detective announces his solution and then explains the reasoning leading up to it. It is also the first locked room mystery in detective fiction.
Upon its release, "The Murders in the Rue Morgue" and its author were praised for the creation of a new profound novelty. Poe, however, downplayed his achievement in a letter to Philip Pendleton Cooke: