"The Mysterious Affair at Styles is a detective novel by British writer Agatha Christie. It was written in the middle of the First World War, in 1916, and first published by John Lane in the United States in October 1920 and in the United Kingdom by The Bodley Head (John Lane's UK company) on 21 January 1921. Styles was Christie's first published novel. It introduced Hercule Poirot, Inspector (later, Chief Inspector) Japp, and Arthur Hastings. Poirot, a Belgian refugee of the Great War, is settling in England near the home of Emily Inglethorp, who helped him to his new life. His friend Hastings arrives as a guest at her home. When the woman is killed, Poirot uses his detective skills to solve the mystery."
Agatha Christie
Agatha Christie was a renowned British author known for her detective novels and short stories. She is best known for creating iconic characters such as Hercule Poirot and Miss Marple. Christie's works are characterized by clever plot twists, intricate puzzles, and surprising endings. Her most famous work, "Murder on the Orient Express," has become a classic of the mystery genre. Christie's contributions to literature include popularizing the "whodunit" genre and establishing herself as the best-selling novelist of all time. Her influence on the mystery genre continues to be felt to this day.