Returning to Styles, Poirot must summon the last of his strength to confront his nemesis.
After a rare professional failure, Poirot heads to the Alps in pursuit of a missing maid.
Ariadne Oliver calls for Poirot's help when she fears becoming involved in a real crime.
Poirot goes to Dover to help determine who is responsible for a man's murder.
An heiress tells Poirot she may have killed someone, but Poirot uncovers a conspiracy.
The Belgian detective is called on to investigate the murder of a woman on the Blue Train.
At a weekend house party a guest is found dying - with his wife holding a gun.