The Moonstone the best of modern English detective novels in a genre invented by Collins and not by Poe," and Dorothy L. Sayers praised it as "probably the very finest detective story ever written." In "The Victorian Age in Literature," G. K. Chesterton calls it "probably the best detective tale in the world." It was published in 1868, later than Poe's short story mysteries "The Murders in the Rue Morgue" (1841) (which introduced the famous locked-room paradigm), "The Mystery of Marie Rogêt" (1842), and "The Purloined Letter" (1845). The plot also shows some parallels with "The Hermitage" (1839), an earlier murder mystery
The Murders in the Rue Morgue and a leap to a set of open window shutters. Showing an unusual tuft of hair he recovered from the scene, and demonstrating the impossibility of the daughter being strangled by a human hand, Dupin concludes that an "Ourang-Outang" (orangutan) killed the women. He has placed an advertisement in the local newspaper asking if anyone has lost such an animal, and a sailor soon arrives looking for it. The sailor offers to pay a reward, but Dupin is interested only in learning the circumstances behind the two murders. The sailor explains that he captured the orangutan while in Borneo and