Languedoc Trilogy

July 1209: in Carcassonne a 17-year-old girl is given a mysterious book by her father which he claims contains the secret of the true Grail. Although Alais cannot understand the strange words and symbols hidden within, she knows that her destiny lies in keeping the secret of the labyrinth safe.... July 2005: Alice Tanner discovers two skeletons in a forgotten cave in the French Pyrenees. Puzzled by the labyrinth symbol carved into the rock, she realises she's disturbed something that was meant to remain hidden. Somehow, a link to a horrific past - her past - has been revealed.

October 1891: A young girl, Léonie Verniern and her brother Anatole abandon the gas-lit streets of Paris for the sanctuary of the Domaine de la Cade, some miles south of the medieval city of Carcassone . But, in the ancient woods that surround the isolated country house, Léonie stumbles across a ruined Visigoth sepulchre - and a timeless mystery.

From the author of the New York Times best-selling novel Labyrinth comes another haunting tale of double crosses, murder, and the occult set in both 19th and 21st century France.

From the No.1 internationally bestselling author comes the third heart-stopping adventure exploring the incredible history, legends and hidden secrets of Carcassonne and the Languedoc. Set during World War II in the far south of France, Citadel is a powerful, action-packed mystery that reveals the secrets of the resistance under Nazi occupation. While war blazed in the trenches at the front, back at home a different battle is waged, full of clandestine bravery, treachery and secrets.

France, 1942: While war blazes at the front lines of Europe, in the walled southern city of Carcassonne, nestled deep in the Pyrenees, a group of courageous women is engaged in an equally lethal battle. Like their ancestors who fought northern invaders 700 years before, these members of the French Resistance - code-named Citadel - fight to liberate their home from the Nazis. Led by a daring 18-year-old, Sandrine Vidal, and her elder sister, Marianne, the women of Citadel work quickly to sabotage their German occupiers, safeguard their neighbors and smuggle refugees over the mountains into neutral territory.