Strong-minded Lady Rosamund rebels at being a pawn in a political chess game that sets her up as the prize if Hanseatic sea captain Erik Branden defeats her father's enemy. Victorious, but injured, Erik stumbles on Burg Mosel's tower steps accidentally tripping the mechanism that opens a secret chamber and exposes a skeleton. His discovery solves a long-standing mystery and uncovers a deeper treachery. Can Erik's integrity and love overcome Rosamund's fear and defiance?