Try to solve the problem on her own.

Anne stared blankly at the class, fumbling for words. "Ah, you see..." her voice trailed off, feeling the wind pick up in the room around her. Her hands whitened on the hem of her skirt, holding it taut. Her face became redder and redder, feeling quite exposed. Panicked, she ran out of the classroom. She had to get out of there! She heard a clamour behind her as a commotion started amongst the students behind her.

Ahead, there were two options: try and hide out on the roof, or continue down the corridor.