Some famous fictional detectives are Sherlock Holmes, Hercule Poirot, Miss Marple and Nancy Drew. Famous fictional detectives from more recent books include Kinsey Millhone and Jack Reacher.
Sherlock Holmes of 221B Baker Street, London, is one of the earliest fictional detectives to solve mysteries using deductive reasoning and observation of detail. In most of the stories, Holmes' assistant, Watson, narrates the tales. In the short story, "Silver Blaze," a famous clue is about a dog that barked in the night; the clue is that the dog did not bark on a certain night.
Dame Agatha Christie created both Hercule Poirot and Miss Jane Marple. Poirot, a fussy Belgian whose handlebar mustache is his pride and joy, is another detective who uses logic to solve crimes. He often refers to "the little grey cells" of his brain. Miss Marple is an elderly English spinster. When a suspect reminds her of someone else, she bases her predictions about the suspect's behavior on what she knows of the other person.
Nancy Drew is an intrepid teenage girl detective, but the series was written by a number of authors for a syndicate. Nancy must often use her resourcefulness to get herself out of scary situations while solving mysteries. Many of her cases involve investigating seemingly supernatural occurrences only to expose the criminal activities hiding behind them.
Ex-cop and happily single Kinsey Millhone has her own practice as a licensed private investigator in California. Her method of solving mysteries is rooted in police procedure. She documents her efforts for her own records and reports her findings to her clients.
Jack Reacher is a former military cop who roams the country aimlessly. He's big, strong, tough, highly intelligent and somewhat intellectual, using both reason and action to investigate. Reacher sometimes fights first and then asks questions.