In the wake of her divorce, Agatha takes a trip on the Orient Express.
Agatha Christie: Lucy Worsley on the Mystery Queen
Lucy discovers the origins of Agatha's most famous play, "The Mousetrap."
Lucy boards the SS Sudan, the paddle steamer that inspired "Death on the Nile."
Following the discovery of her abandoned car, the police launch a search for Agatha.
Lucy meets Agatha's great grandson, James Prichard, to discuss Agatha's upbringing.
Lucy and Jamie discuss "The Mysterious Affair at Styles," and Poirot's unique qualities.