Part of the Mavenhill Classics series, this annotated edition of The Mystery of the Blue Train presents one of Agatha Christie’s most glamorous Hercule Poirot cases. A murder aboard the legendary Blue Train transforms a journey of luxury into a closed world of suspicion, where wealth, ambition and deception collide. As Poirot examines both evidence and human behaviour, the investigation exposes the fragility beneath privilege and the illusions of high society.