Résumé : Will Campbell longs to become a Knight Templar, but first he must serve as aprrentice to the foul-tempered scholar Everard, a man of dangerous secrets. Amir Baybars has fought his way from slavery to become a fearsome commader, driven by an unquenchable desire to free his people from the European invaders of the Holy Land. These two men are destined to collide, in that extraordinary clash of civisilations known in the West as the Crusades.