Prompted by the murder of his legate, in 1209 Pope Innocent III launches a crusade - not against the infidels of the East, but against fellow Christians living peaceably in the south of France. They are the Cathars, regarded as heretics by the Roman Church, and the sect is flourishing. Thousands of knights, landless younger sons, mercenaries and assorted riff-raff pour south with Christian zeal to exterminate men, women and children of the same country. A dilemma soon arises: How to tell a Cathar from an orthodox Catholic? Lovers Bräida and Jourdan are torn apart when Carcassonne falls to the crusaders. Jourdan joins the resistance while Bräida flees with her family to the relative safety of the Pyrenees, neither knowing if they will see one another again. But Bräida is not safe in her mountain retreat, because the Church has found an answer to its dilemma - the creation of the Inquisition. No one can escape its diabolical clutches.This is a story of faith, endurance and the love of liberty in a time of unimaginable cruelty.