"Keep your friends close and your enemies closer! When Snowball, the puffball hamster in Ms. Kim’s classroom, accidentally sips the teacher’s leftover protein shake, she transforms into a monster like Beacher Elementary School has never known before. It’s all hands on deck to stop Snowball before it’s too late. And to do that, Milton Worthy is going to have to team up with Noah, the part-time classroom ferret, full-time evil mastermind! Will Milton and Noah be able to work together in time to stop Snowball and save the world?"-- Provided by publisher.