The Postern of Fate Author:Agatha Christie Poster of Fate — Author: Agatha Christic — Tommy and Tuppence Beresford, the engaging detective duo of 'N or M?' and of 'By the Pricking of My Thumbs,' return in their most chilling adventure. It begins with their discovery of an artfully hidden message: 'Mary Jordan did not die naturally. It was one of us. I think I know which one.' — The schoolb... more »oy who made this accusation had died long ago, but he and the mysterious Mary Jordan had once lived in the Beresfords' charming old house. And Mary had been killed. By whom and why? The solution to the ancient crime lay behind the Postern of Fate -- a dread gate to violence and murder!