Louisa had turned from the ALIVE movable version of herself to the zombie robotic moving mode. Why were students listening and answering and following orders when they were promised ROCKS falling down on them? This could be fine if it was DADA and they had to shoot them. Instead of collecting them. The Ravenclaw continued to stare and do as everyone did with a poker face, but her heart was strangely beating regularly. Maybe because she was sure this was not what it sounded like - it's not supposed to be. Nope. Complete denial here.