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Sherlock Holmes
The Sherlock Holmes books, created by Arthur Conan Doyle, are some of the greatest mystery novels ever written.
Edgar Allen Poe may have invented the detective story, but it was Arthur Conan Doyle who perfected it when he created the character of Sherlock Holmes.
The typical detective story begins with a protagonist who is faced with a mostly mundane incident or the report of an incident that he begins to investigate.
If we were not so accustomed to mystery novels and what makes them tick this might seem like an unimaginative way to begin a story.
What makes a good detective story work is the technique of the story within a story.
As the protagonist begins to investigate the original mystery of a book he comes to reveal a second story contained inside the first one that expands the book and causes it to be transformed.
story
Hercule Poirot
Hercule Poirot: the world-renowned, moustachioed Belgian private detective. Christie was purposely vague about Poirot's origins, as he is thought to be an elderly man even in the early novels.
In An Autobiography, she admitted that she already imagined him to be an old man in 1920.
At the time, however, she had no idea she would write works featuring him for decades to come.
A brief passage in The Big Four provides original information about Poirot's birth or at least childhood in or near the town of Spa,
Belgium: "But we did not go into Spa itself. We left the main road and wound into the leafy fastnesses of the hills, till we reached a little hamlet and an isolated white villa high on the hillside."[29]
Christie strongly implies that this "quiet retreat in the Ardennes"[30] near Spa is the location of the Poirot family home.
Miss Marple
Miss Marple is a fictional character in Agatha Christie's crime novels and short stories.
Jane Marple lives in the village of St. Mary Mead and acts as an amateur consulting detective.
Often characterized as an elderly spinster,she is one of Christie's best-known characters and has been portrayed numerous times on screen.
Her first appearance was in a short story published in The Royal Magazine in December 1927, "The Tuesday Night Club", which later became the first chapter of The Thirteen Problems.
Her first appearance in a full-length novel was in The Murder at the Vicarage in 1930, and her last appearance was in Sleeping Murder in 1976.
The character of Miss Marple is based on friends of Christie's step grandmother/aunt (Margaret Miller, née West).
Christie attributed the inspiration for the character to a number of sources, stating that Miss Marple was "the sort of old lady who would have been rather like some of my step grandmother's Ealing cronies – old ladies whom I have met in so many villages where I have gone to stay as a girl".