The knights of Contarren Berengar, who arrived in Saint-Marco on a secret mission, were attacked at night, one of them was killed, the second was seriously wounded. Realizing that this poses a threat to peace negotiations with the Loire of the Blue Griffin, the head of the king's secret police, Count Raymond, instructs Baron de Segur to find those responsible for this crime. While investigating, Mark suddenly learns that his wife Madeleine's stories about her past are lies, and she is not at all who she claims to be. In confusion, he begins to realize that his family happiness could collapse at any moment, and irreparable damage would be caused to his reputation. But he still needs to unravel the sinister conspiracy that the king’s enemies are weaving in Saint-Marco.