Catherine de Medicis has come to inform Nostradamus that a terrible curse is threatening the royal family dwelling in the Salon-de-Provence castle. This impending tragedy, based on one of his quatrains, forces the famous seer to promise the regent that he will send his son Cesar to investigate. But as Cesar is unavailable, his sister Madeleine assumes his identity and leaves the village to search for clues that will save the royal family. This is the first part of a three-part adventure.
