The Dragon is the henchman of King Edward I. His mission is to carry out the conquest of Wales. He has been ordered to do this by appearing to negotiate with Prince Llywelyn ap Gruffyd. His negotiations become tenuous when he encounters Llywelyn's illegitmate daughter, Rhiannon. Rhiannon is her father's most valuable and successful spy, and she will protect him at all costs. Even when she falls in love with one of her father's greatest enemies.