In the eighth book in this New York Times bestselling series, a big storm is coming to Treetopolis! Eva and her classmates are also getting ready to take their very important Owl Oath — a promise to protect the other animals in the forest by being brave and wise and kind. Eva needs to come up with a project that proves she is ready to take the oath. When the storm hits, Eva tries to help a lost pony. But it's so rainy and windy that she gets caught in the storm, too! Will Eva be brave and wise and kind enough to save the day?