Rosie O’Connell, exiled from the fae realm, teams up with her father to return home. She uses her connection with Prince Ezryn of the Spring Realm to try to get back to the Enchanted Vale. But war looms: a magical frost is threatening the Autumn Realm, and the four fae princes must figure out how to stop it. Rosie must find the courage to harness her own magic and save the ones she loves.