Sepulchre by Kate Mosse Paperback

1891. Seventeen-year-old Léonie Vernier and her older brother abandon Paris for the sanctuary of their aunt's isolated country house near Carcassonne, the Domaine de la Cade. But when Léonie stumbles across a ruined sepulchre she uncovers a timeless mystery and a unique deck of tarot cards that seem to hold power over life and death.

2007. Meredith Martin arrives at the Domaine de la Cade to research a biography. But Meredith is also seeking the key to her own complex legacy and becomes immersed in the story of a tragic love, a missing girl, a quest for revenge and the haunting events of one cataclysmic night a century ago . . .