What is the author's style in The Murders in the Rue Morgue by Edgar Allan Poe?

Poe employs a first-person narrator to tell his tale. This narrator is unlike the unreliable narrators of stories such as The Cask of Amontillado and The Imp of the Perverse, however, and is more of an observer than a participant. His role in the story is to explain the story to the reader, allowing a more balanced picture of the entire detective story and of the analytical mind of Dupin. He does seem to be slightly in awe of Dupin, but his narration seems unharmed by his affections.