Christie employs a unique narrative style in this mystery. While the story is primarily told from the first-person perspective of Poirot’s loyal companion, , it is interspersed with third-person chapters focused on a secondary character, Alexander Bonaparte Cust . Cust is a shell-shocked war veteran and traveling salesman whose presence at the crime scenes makes him the prime suspect in the eyes of both the reader and the police. Themes and Legacy
The story begins when Poirot receives a series of cryptic letters signed by "A.B.C.," challenging him to stop a string of upcoming crimes. The killer follows a strict alphabetical pattern for both the victims' names and their locations, leaving an at each crime scene: A : Alice Ascher in Andover. B : Betty Barnard in Bexhill-on-Sea. C : Sir Carmichael Clarke in Churston. The ABC Murders
The book's enduring popularity has led to numerous adaptations, most notably: The ABC Murders: An Agatha Christie Mystery - Ftp Christie employs a unique narrative style in this mystery