It has been twenty years since the passing of Queen Caroline de Montigny. Nicholas and Brandywine have kept faith with their promise to her, and les Boulevardiers have become adults, with families of their own. When a series of chance occurrences make it evident that the realm is threatened by internal sedition and two invasions from beyond its borders...as well as the centuries-old vendetta of an ancient sorcerer...it falls their daughter Arabella and her "cousins" to save the world as they know it. .