Yippee! A new baby unicorn named Rosalie is coming to Cloudland! The unicorns Glitterluck, Stardust, Marvel Flower, and Magic Swirl want to give Rosalie a fantastic reception and throw a huge welcoming party. They invite all their friends and collect incredibly large cloud crystals. But they must hurry since everything at the party is supposed to be ready before Rosalie arrives. —description from the publisher