This book talks about the work necessary to take care for a guinea pig, as well as some of their common behaviors. Readers will meet Miranda, who has a guinea pig name Griswold. Griswold was adopted from an animal shelter. He loves to dig around in his bedding and hide in his igloo. When Griswold gets excited, he likes to jump up and down in his cage and squeak. Miranda thinks this is funny. Miranda likes taking care of Griswold. She feeds him timothy hay and baby carrots. Illustrations and manageable text are ideal for emerging readers and young listeners.