Hermione is both too sharp and not sharp enough with the panic and the noise, she’s frazzled, hasn't sleep in forty-eight hours — Madame Pomfrey needed help in their makeshift hospital in Brighton, Neville nearly lost an arm that night and another faceless girl bled out, and Hermione’s the only one competent enough at healing to help, so it's just her and Poppy that spend all those nights working, either frantically healing or falling asleep running diagnostic charms or brewing whatever potions they can and getting Snape for the rest but the point is t here’s shouting and arguing and the frenzied horde around the blond only grows.