The hallway is spartan and dim- the lights aren't on, although sunlight comes through the window at one end of the hall. It's lined mainly with lockers, with various posters and notices covering un-lockered wall space. There are plenty of doors like Max's classroom door, spaced at regular intervals.

"Hey! Come back here! Where are you...!"

Hm, no, she is not listening to him, it seems. He disentangles himself from the desk and gets up.