A visit to the Rainbow Realm is always an adventure, especially when the unicorn princesses have a surprise for Cressida! Cressida Jenkins, a unicorn-obsessed girl who is sure that unicorns are real, is invited to visit, and readers will be thrilled to journey to the Rainbow Realm along with her! In Feather's Flight , Cressida meets the eighth Unicorn Princess named Feather whose magical ruby allows her to fly! Feather is an explorer, and she's back from her latest adventure. To celebrate, she planned a super-fun sleepover for her sisters and Cressida in the Sky Castle, complete with special pajamas that will allow their wearers to fly! But Ernest the wizard lizard once again casts an errant spell that will require all of the magic of the Unicorn Princesses-and some from Cressida too-to save the day. This magical chapter book series is full of sparkle, fun, and friendship.