In 1685, sixteen-year-old Jean-Claude Dubois and his younger brothers escape from the violent terror against the Huguenots in France, sailing to his uncle, a spice trader in Prussia. On the voyage, Jean-Claude falls in love with Marie and they eventually marry and have a daughter, Katy. At thirteen, fluent in French, Katy is sent away to be the companion of spoiled, aristocratic Charlotte, daughter of the margrave of Königsberg to teach her French for her marriage into French nobility. A frightened Katy must accompany her to France, where she meets the blacksmith's apprentice, Gilles. Their love appears doomed, when the family takes her to Versailles for the wedding. There, Katy meets her father's enemy, King Louis IV, who charms her.
