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 home in the Rue Morgue, a fictional street in Paris. The mother was found in a yard behind the house, with multiple broken bones and her throat so deeply cut that her head fell off when the body was moved. The daughter was found strangled to death and stuffed upside down into a chimney. The murders occurred in a fourth-floor room that was locked from the inside; on the floor were found a bloody straight razor, several bloody tufts of gray hair, and two bags of gold coins. Several witnesses reported hearing two voices at the time of the murder,