Sirius vows to protect Misty-Rain and follows her to Earth, but soon has his hands full as she struggles to earn her living and dodge the everyday dangers of the human world. Their life proceeds well, but Sirius has struck a dark bargain with the Sea Witch and he can feel her cold presence touching him. Nanny sends the beautiful Thornpricker to Earth to rescue Sirius. However, the prince's love for Misty-Rain anchors him to this world and Thronpricker's hatred of Misty-Rain rises to new levels. Sirius is about to learn the definition of trouble.