Hercule Poirot sort of obsessive-compulsive" in Poirot. As mentioned in "Curtain" and "The Clocks", he is fond of classical music, particularly Mozart and Bach. In "The Mysterious Affair at Styles", Poirot operates as a fairly conventional, clue-based and logical detective; reflected in his vocabulary by two common phrases: his use of "the little grey cells" and "order and method". Hastings is irritated by the fact that Poirot sometimes conceals important details of his plans, as in "The Big Four". In this novel, Hastings is kept in the dark throughout the climax. This aspect of Poirot is less evident in the later novels,
Hercule Poirot Poirot what Watson is to Sherlock Holmes. Hastings is capable of great bravery and courage, facing death unflinchingly when confronted by "The Big Four" and displaying unwavering loyalty towards Poirot. However, when forced to choose between Poirot and his wife in that novel, he initially chooses to betray Poirot to protect his wife. Later, though, he tells Poirot to draw back and escape the trap. The two are an airtight team until Hastings meets and marries Dulcie Duveen, a beautiful music hall performer half his age, after investigating the "Murder on the Links". They later emigrate to Argentina, leaving Poirot