Thirty hundred years ago, Arthur Pendragon, High King of the Ten Kingdoms, was betrayed and the royal city of Caer Lon became a myth. Fifteen years ago, the sorcerer Wolfryth killed King William Pendragon in his quest for power and usurped the throne of Camelot. Queen Ylianor and her five year old son fled the kingdom to take refuge in Haven at Duke Geraint's court. Today, Prince Derek follows Geraint's beautiful daughter Sacha into a reckless mission to save her brother from Wolfryth. He will need to embrace his heritage and to trust magic if he wants to find his way back to Caer Lon and unlock its secrets before the sorcerer kills them all.