The Adventure of the Christmas Pudding and a Selection of Entrées is a short story collection written by Agatha Christie and first published in the UK by the Collins Crime Club on 24 October 1960. It is the only Christie first edition published in the UK that contains stories with both Hercule Poirot and Miss Marple, the writer's two most famous detectives. It retailed in the UK for twelve shillings and sixpence (12/6) and comprises six cases. It was not published in the US although the stories it contains were published in other volumes there. Plot summaries The Adventure of the Christmas Pudding, or The Theft of the Royal Ruby Poirot is asked by a Mr Jesmond, who is acting as an intermediary to an eastern prince, to help that unfortunate young man with a problem he is having. The prince is due soon to be married to a cousin. On his way to be married, he met an attractive but obviously dubious young woman, and rashly decided to have a last fling with her. The prince brought several expensive jewels with him to London for resetting by Cartier and one of them, a fabulous ruby, was stolen by the young woman. If it cannot be retrieved, a scandal will ensue and because of this, the police cannot be involved. The mystery can be solved at an old English country house called Kings Lacey where it will be arranged for Poirot to join a family there for their Christmas celebrations, supposedly to experience a typical English Christmas. On Christmas Eve, at Kings Lacey, Poirot is told about the other members of their party by Mrs Lacey, his elderly host in the house. Joining them will be her husband, Colonel Lacey; Sarah, a granddaughter by their deceased son; Colin, a teenage grandson by their daughter; Michael, a friend of Colin's at school; Bridget who is of the same age as Colin and Michael and is a great niece of Mrs Lacey's; Diana, a young cousin of Mrs Lacey's; and David Welwyn who is a family friend. Colonel and Mrs Lacey are perturbed by Sarah's relationship with a young rake called Desmond Lee-Wortley. They both think him unsuitable for their granddaughter and have invited him to join them for Christmas, in the hope that a few days' close contact with Sarah will show her how unsuitable he is, particularly in contrast to