This is my second book in the series The Classroom Mouse. The first book established the character Charlie in a classroom. In this book, Charlie has lived in the classroom for a few years and gets to go on his first field trip to the zoo. There will be three more books in the series to follow. All the stories about the classroom mouse, Charlie, are about this young mouse living and experiencing life in a first-grade classroom. He will go on more adventures, experience bullying, and learn many lessons throughout his life in the classroom.