Alexandra Benedict serves up a traditional country house Christmas mystery set in the Yorkshire Dales as the snow falls heavily, threatening to cut off Endgame House. 33 year old Lily Armitage lost her mother, Mariana, as a child in an apparent suicide in the famous maze at Endgame House, an event that scarred her, which she has never got over, as she keeps the world at bay, not allowing herself to get close to anyone so that she would never be hurt again. She is a gifted dressmaker, rustling up copies of whatever her clients desire, living in a tiny place in London. Her adoptive mother, a professor of poetry at Cambridge, Aunt Liliana, has died, leaving behind instructions that Lily must go to Endgame House, a place she has avoided after her mother died there.
Lily really doesn't want to go, but is enticed by Liliana telling her Mariana was murdered, and if she wants to know more, then she must spend Christmas at the manor. Her cousins will be there, and a Christmas puzzle game has been set up for them to solve with 12 clues, 12 keys they must get, with the prize, Endgame House itself. However, they have to stay for the entire 12 days of Christmas, looked after by the housekeeper, Mrs Castle, but they have to give up their phones and any device that might provide them access to the internet. All of them are welcomed by a familiar face, Isabelle Stirling, a lawyer who sets out the terms of Liliana's wishes which they must abide by, after which she leaves. It is not long before the first murder occurs, and everyone is trapped with a ruthless killer among them intent on ensuring Endgame House will be owned by them.
This is a dark and intense locked room Christmas mystery which I am sure many readers will enjoy, although perhaps there was a little too much repetition of Lily's grief and memories of the loss of her mother for me. Benedict adds a series of anagrams from the 12 Days of Christmas in the narrative, along with titles of other known murder mystery novels too. This is a entertaining and engaging seasonal crime read, of secrets, Lily's, Endgame House's and others in her family, and murders, past and present. Although it did take me a little time to become immersed in it, I liked the second half of the book more, and the puzzles within the novel will appeal to those who love the crime and mystery genre and want to use their own little grey cells! Many thanks to the publisher for an ARC.