Madison Morris Is NOT a Mouse! is the third book in author Kathryn Holmes and illustrator Ariel Landy’s humorous and heartfelt Class Critters chapter book series about a second-grade class where each kid turns into an animal for a day.

Madison tries her best to spread joy and be helpful, even when people like her great-aunt Joelle seem to think that she can’t do or say anything right. Still, she goes into Mrs. Norrell’s class with her head held high, ready to brainstorm ideas for her group project on activism. But after her great-aunt Joelle shoots down her ideas, she starts to wonder if maybe she isn’t really cut out to be a leader or changemaker. Then something strange happens: Madison turns into a mouse!

Her voice is high-pitched and squeaky, her heart beats furiously in her body, and she’s so, so small. Luckily, one of her kindhearted classmates, Tally Tuttle, helps to get her to safety so no one squishes her by accident. Will Madison be able to navigate her own insecurities and the unexpected dangers of being a mouse—and turn back into herself before the end of the day? Or will she be stuck eating cheese and hiding from cats for the rest of her life?

In this chapter book series, Mrs. Norrell’s second-grade classroom has magic that allows kids to transform into animals to learn important life lessons. Each book follows a different kid and their animal transformation and includes fun natural science facts about the featured animal in the back matter.

Class Critters series:

Tally Tuttle Turns into a Turtle (#1)

David Dixon’s Day as a Dachshund (#2)

Madison Morris Is NOT a Mouse! (#3)