Hermione squared her shoulders as they approached the boundary of the Caterwauling Charm, trying to keep her breathing even and slow, her lungs so tight and it felt like she couldn't breathe at all, every muscle tensed until she felt like an overwound clockwork toy, the crackling of her feet on dead leaves horrendously loud to her ears. Lupin paused and looked at each and every one of them, getting nods in response. Hermione felt her own head bob on her shoulders, and it felt heavy, her movements jerky. What if she got bitten? She wouldn't turn into a werewolf, but the effects still wouldn't be pretty. She was terrified of being bitten.