No more pencils, no more books. No more teachers’ dirty looks. When their fifth-grade teacher quits in the middle of teaching a lesson, the students of class 507 assume it’ll be one big holiday - if they can just keep the principal, the rest of the school, and their parents from finding out. But they quickly learn that school without a teacher isn’t easy, and keeping a secret is harder than they ever imagined. Maybe even harder than fractions!
