1891. Seventeen-year-old Leonie Vernier and her brother abandon Paris for the sanctuary of their aunt's isolated country house near Carcassonne, the Domaine de la Cade. But in the nearby woods, Leonie stumbles across a ruined sepulchre - and a timeless mystery whose traces are written in blood. 2007. Meredith Martin arrives at the Domaine de la Cade as part of her research for a biography she's writing. But Meredith is also seeking the key to her own complex legacy and soon becomes immersed in the story of a tragic love, a missing girl, a unique deck of tarot cards, an unquiet soul and the strange events of one cataclysmic night more than a century ago...