"Rachel and Kirsty are so excited to spend the week at the Golden Palace. They're going to live like real princesses! But before long, they discover that something is terribly wrong. The Princess Fairies' magic tiaras are missing! Without them, both Fairyland and the human world are a royal mess. Hope the Happiness Fairy's magic tiara is missing -- and now everyone is gloomy and glum! Can Rachel and Kirsty help find her tiara and bring fun back to the Golden Palace?"