When eight-year-old, pegasus-obsessed Clara Griffin is playing in the forest, she's thrilled to discover a magical silver feather and a flying armchair that transport her to the Wing Realm, the land of the pegasus princesses! It is Princess Flip's favorite day of the year-the day she hosts the Wing Realm's Potion Fair! This year, the pegasus princesses have concocted a special magical potion with their favorite human girl, Clara, in mind. Clara knows a thing or two about potions, and she eagerly helps the pegasus princesses add the final ingredients to this very special one. When she travels across the Wing Realm to the Magic Marsh with Flip and Lucinda to prepare for the fair, a potion mishap causes a caterpillar catastrophe. Can Clara mix up the right ideas to help save the day? Featuring black-and-white illustrations throughout and eye-catching, sparkly covers, this series is another must-have for chapter book readers.