Abstract. This article analyzes the most interesting and mysterious events in the life of one of the most famous detective writers in world literature - Agatha Christie. In particular, it covers her disappearance for 11 days, her novels written under the pseudonym Mary Westmacott, her archaeological travels to the Middle East, and her attitude to the image of Hercule Poirot. The article reveals the connection between the writer's personal life and creative work, and indicates the factors underlying the deep psychologism and mysterious spiritual mood in her works.