Inside Jefferson Middle School
When Nate and his friends enter the school building, they find that the school is so fancy, that they can barely tell it's even a school. There were glass cases everywhere, which were filled with trophies. There were murals covering the walls, and even a skylight!! There is even a rec room for kids to use during free time. In their cafeteria (which they call a food court), there is a soft serve ice cream machine.
The principal is Mrs Williger.
Currently as of now, we only know the principal and some of the students, because the last time the book describes about the school, it doesn't give away so much of the staff there.