The Darkwood and its demons are encroaching on the Forest Castle, creating a path of destruction and leaving behind a plague. Within the castle, the royal heir, Prince Harald, creates intrigue in a plot to overthrow King John – a plot that would put Harald on the throne and change the Forest Kingdom forever. His brother Rupert risks losing his home, Princess Julia and his life, as he braves the minions of the Demon Prince in order to find the exiled High Warlock. The only hope of salvation is the Warlock's magic, unless Julia and the Royal Seneschal can find the missing Sword of Compulsion known in legend as The Curtana.