This third volume in the series relating the life of the most famous French princess in history recounts how Margot is driven to conspire against her third brother, the King of France, who is afflicted with an unshakeable illness. Margot became the Queen of Navarre in 1573, against her will. Neglected and cheated on by an unfaithful husband, spied on by her mother and manipulated by her two brothers, Margot exists but is not truly living.