The story, set on Sullivan's Island, South Carolina, is often compared with Poe's "tales of ratiocination" as an early form of detective fiction. Poe became aware of the public's interest in secret writing in 1840 and asked readers to challenge his skills as a code-breaker. He took advantage of the popularity of cryptography as he was writing "The Gold-Bug", and the success of the story centers on one such cryptogram. Modern critics have judged the characterization of Legrand's servant Jupiter as racist, especially because of his comical dialect speech.