The book opens with a profound loss in the world of the witches, and Tiffany finds herself confronted with the question of who she is now meant to be in the absence of those who shaped her - even as an old enemy returns and the elves prepare to invade the Chalk. Terry Pratchett's final novel, published posthumously and unfinished in places, but containing some of his most moving writing. A book about endings, succession, and what we leave behind.