Marigold Ramos can magically make things small - sometimes very, very small. The only problem? She can't figure out how to make them big again.
Maybe a new tutor can help Marigold manage her magic. And maybe her magic will come in handy as she and her friends in the Upside-Down Magic class band together to protest a new rule by their principal, a super unfair rule that bans them from bringing their amazing new toy dragons to school.
But when Marigold starts shrinking her friends and the class bunny, it's a humongous problem! It's time to figure out how Marigold and her friends can make a big statement... without disappearing entirely!