The Purloined Letter (1845): Poe's Detective Fiction and Ratiocination

The Genesis of Detective Fiction and the Ratiocinative Tale. In a letter to James Russell Lowell (1844), Poe called his detective fiction “tales of ratiocination,” and the three that stand out—“Murders in the Rue Morgue,” “The Mystery of Marie Roget,” and “The Purloined Letter”—all involve his brilliant sleuth, C. Auguste Dupin. The impulse to create a body of work dedicated to the positive, penetrating intellect and to the triumph of scientific deduction may well be tied to Poe’s ubiquitous fascination with puzzles, ciphers, codes, hieroglyphics, and labyrinths, into which Theseus can provide the clarifying thread of reason and logical connection. That Arthur Conan Doyle took his formulas for the Sherlock Holmes stories from Poe’s tales like “The Gold Bug” and “The Purloined Letter” seems all too obvious today. The narrator is an unnamed friend and confidant of Dupin, easily parallel with Doyle’s ingenuous Dr. Watson.

When we discover, at the conclusion of this tale, that the villain of the piece, Minister D——, did Dupin “an evil turn” in Vienna “that I should remember,” we suspect a correspondence with Doyle’s Dr. Moriarty, an evil arch mastermind with whom Holmes has a personal vendetta, much like the protagonist in “The Cask of Amontillado.” This intertextual resonance reinforces Poe’s foundational role in shaping the detective genre and its enduring archetypes of the brilliant investigator and the malevolent antagonist.

The Plot Mechanics and the Theme of Power. The mechanics of “The Purloined Letter” remain relatively simple: Monsieur G——, the prefect of police, seeks Dupin’s help in locating an incriminating letter taken from the queen by Minister D——, who wields considerable power over her by the possession and possible exposure of the letter. Power, in fact, is the central theme of the story: “The paper gives its holder a certain power in a quarter where such power is immeasurably valuable.” But the usual police methods, of searching scrupulously through every nook and cranny of Minister D——’s premises as well as his person, have failed to discover the letter. The purloined letter is presumed to lie always near Minister D——, who with his “lynx eye” had “fathomed [the queen’s] secret,” stolen the letter, and thus achieved “ascendancy complete” over the queen, and, by extension, the state.

Dupin notes that the culprit Minister D—— is both mathematician and poet, and that he, Dupin, indulges in poetry. “I have been guilty of certain doggerel myself.” Dupin perceives that it is the quality of imagination and not cold analysis that makes Minister D—— a formidable opponent and concealer of the letter, which eludes all material searches. What Prefect of Police G—— calls “the most jealous scrutiny of the microscope” proves insufficient because the minister’s method is not merely analytic but imaginative.

Dupin's Method: Identification and the First Profiler. One month later, Dupin blithely places the letter into the hand of Prefect G—— for the reward of 50,000 francs. Dupin reveals that the secret of his success lies in “an identification of the reasoner’s intellect with that of his opponent.” Poe has created the first profiler in detective fiction. His knowledge that the poet is more cunning, more imaginative than the mathematician allows for the flexibility of his method: Dupin has realized that Minister D—— “would be driven . . . to simplicity” as his means of deception.

The letter had been “hidden in plain sight,” having become an inverted palimpsest that had not the look of a royal correspondence. The prefect and his policemen “never once thought it probable, or possible, that the Minister had deposited the letter immediately beneath the nose of the whole world.” After having created an outdoor diversion while visiting Minister D——, Dupin had himself purloined the letter and left a gold snuffbox to assure a pretext for his return to Minister D——’s apartments. As does Theseus, or a moralistic Dante, Dupin claims he has “no sympathy—at least no pity—for him who descends.”

Dupin leaves Minister D—— a card, announcing his triumph, so that the redress is personal as well as political. Poe seems to take a page from his own criminal Montresor in “The Cask of Amontillado”: “A wrong is unredressed when retribution overtakes its redresser. It is equally unredressed when the avenger fails to make himself felt as such to him who has done the wrong.” In the case of Dupin, the vengeance is classical, with Dupin’s citing the murderous retribution of Atreus, who served the seducer Thyestes his own children at a banquet. This classical allusion underscores the aesthetic and personal dimensions of Dupin’s triumph, which transcends mere legal resolution.

Concealment, Revelation, and the Aesthetics of Detection. By alternating the notions of concealment and revelation, Poe fashions a genre, detective fiction, that makes a virtuoso of the cryptographer, the man who penetrates the byzantine workings of the criminal mind. Frederick S. Frank points out several psychological and stylistic ironies of Poe’s detective stories in his exhaustive The Poe Encyclopedia: “The irrational crimes and punishments of the homicidal fantasies find a counterpart in the rational crimes and punishments of the detective tales in which Poe elaborates upon the skill of . . . C. Auguste Dupin, in employing the imagination of the poet and analytic intelligence of the mathematician to solve insoluble crimes. To crack his cases, Dupin’s mind entails a perfect balance of analysis and speculative insight rendered all the more effective by his close identification with the criminal and his thought processes. Solving the crime is not a moral act . . . but an intellectual exercise, like the writing of a beautiful poem. . . . Dupin is by design self stimulated by the exotic and peculiar and acting according to a master plan. . . . [T]he mental routine of Dupin has much in common with the inquisitive narrators of the homicidal fantasies. Completely self contained and deigning to enter the social sphere only to exhibit his crime-solving prowess to the embarrassment of the authorities, the great detective operates on a plane above the forces of law and social convention. Because the moral implications of the crime never intrude upon the ideal solution, Dupin always succeeds where moralists fail. Beautiful and perfect in conception, his solutions are works of art as Dupin has attained the sort of ideality that the killers and madmen vainly seek. (3–4)”

Through a pattern of consistent imagery, Poe glamorizes Dupin, who makes a pronouncement “amid a perfect whirlwind of smoke,” like some biblical vision. Whereas the police “functionaries” are “mystified” by the problem, Dupin’s “measures were adapted to [the minister’s] capacity . . . as a courtier . . . and as a bold intriguant.” Dupin symbolically breaks “the large black seal, bearing the D—— cipher” superimposed on a letter whose “address was diminutive and feminine.” If Minister D—— appeared to others as “in the last extremity of ennui,” Dupin has seen beyond the veil and calls the minister “perhaps the most really energetic human being now alive” and apt prey for Dupin’s aesthetic sport. No ploy is too protean, no persona too androgynous, for Dupin to follow, identify, and capture.

For Discussion or Writing.
1.Compare Sherlock Holmes’s methods in “The Speckled Band” with Dupin’s deductive analysis in this tale. Explain how each author uses a combination of scientific deduction and imaginative induction.

2. How do modern profilers—detectives who closely empathize with the perpetrators they seek, such as the one in Thomas Harris’s The Silence of the Lambs—morally differ from the criminals they pursue? Explain how Dupin differs from Minister G——.

3. Poe has been called the “father of American aestheticism.” Do the detective stories, especially in Frederick S. Frank’s analysis, justify this epithet? Consider especially Poe’s presentation of the relationship art maintains with questions of morality.