Everything is not what it seems in Wellington Heights for Melanie Wilder. She's a Mooncaster hidden from her homeworld of Glimmer as an act of protection from the harm that could come her way. During an adventure to her home world accompanied by Julian Sweet, more truths surface. She has to reunite with her siblings; George Wilder (a Dragon) and Victoria Wilder (a Witch). In reuniting with them, her heart finds home in Hudson McNamara who is gifted with taming dragons and using air magic.