No fun in Fairyland? The Fun Day Fairies are each responsible for adding spunk and sparkle to one day of the week! But when Jack Frost steals their magic, they need Rachel and Kirsty's help. Without the fairies' special flags, every day of the week will be gloomy and glum. The goblins will do whatever it takes to find Thea the Thursday Fairy's flag first -- even swim with sharks! How can Rachel and Kirsty stop them? Find the magic flag in each book, and help fill every day of the week with fun!