Timothy Limpet feels out of place in his troll family. He likes things to be just so, and most trolls, frankly, don’t. Tabitha Lumpit likes things to be loud, loopy, and messy, and she feels like a fish out of water in her very neat family. Sometimes they wonder if their families really see them for who they are. So Timothy and Tabitha swap places . . . with hilarious and touching results.