Agatha Christie wrote 79 mystery novels from 1920 until 1976 and sold two billion copies. This list contains her first and last novels.
1. The Mysterious Affair at Styles
This is Agatha Christie's first novel and her introduction to the world of the Belgium detective Hercule Poirot. When Mrs. Ingelthorp dies of poisoning, suspicion immediately falls on her new husband, 20 years her younger.
2. A.B.C. Murders
A mysterious letter challenges detective Hercule Poirot to solve a murder that has yet to be committed, and his only initial clue to finding a serial killer is the signature on the letter, A.B.C.3. Cards on the Table
A evening of bridge brings together four crime sleuths, who are also four murders. Before the evening ends, someone is dealt a deadly hand. Detective Hercule Poirot tries to find clues from the score cards left on the table.4. Five Little Pigs
In another classic Christie mystery involving at long ago murder, a woman wants to clear her mother's name in the death of her philandering husband. Hercule Poirot's only clue to the case come from the accounts of five people who were present at the time.5. The Big Four
In a departure from her usual mysteries, Christie involves Hercule Poirot in a case of vast international conspiracies after a disoriented stranger shows up at the detective's door step and passes out.6. Dead Man's Folly
Mrs. Ariadne Oliver plans a "Murder Hunt" at her estate at Nasse House, but when things do not go as she plans, she calls Hercule Poirot for help. Some critics consider this one of Christie's best twists at the end.7. Death Comes As the End
Because of it's setting in Egypt, this may be one of Agatha Christie's most unique novels. But the plot and ending are pure Christie, in this mystery of a widow who returns to her home to find danger at every turn.8. Mrs McGinty's Dead
Many old secrets are uncovered as detective Hercule Poirot attempts to solve a crime and clear an innocent man's name before his execution date. Most readers believe this is one of Christie's most complicated plots.9. Curtain
In his final case, Hercule Poirot returns to Styles St. Mary, the site of his first mystery in 1920. Facing a cunning killer, Poirot encourages his friend Hastings to try to solve the mystery himself.10. Sleeping Murder
Many consider this one of Agatha Christie's best novels. It was also her last. A newlywed thinks she has found the perfect new home for her and her husband, but comes to believe it is haunted. Miss Marple offers a different, but nonetheless distrubing theory.