Carcassonne, 1562.On the eve of the wars that will tear France apart, nineteen-year-old Minou Joubert receives an anonymous letter at her fathers bookshop. Sealed with a distinctive family crest, it contains just five words: SHE KNOWS THAT YOU LIVE.

But before Minou can decipher the mysterious message, a chance encounter with a young Huguenot, Piet Reydon, profoundly reshapes her destiny. For Piet has a mission of his own, and he will need Minous help if he is to get out of La Cit alive . . .