She'd be fooling herself if she said she wasn't scared. She was. Terrified, even. Despite Hermione's plea, she hadn't been able to sleep very thoroughly the night before. Seamus' drunken journal update hadn't helped matters, either. She was a tired mess, and she knew it. Regardless, she knew she needed to be there. She wasn't going to sit idly by and allow her government to break from the inside.
She wasn't a coward.
When she received the second Patronus, she grabbed her wand off of the table beside her and hurried to her floo. She couldn't move quickly enough. The floo system couldn't take her there quickly enough.
No sooner that she was spat out of the system was it that she realized that she'd emerged in the midst of chaos. It was to be expected. Alert and ready, she hurried into the foray, casting an amateurish shielding charm around herself before flinging disarming charms at her enemies.
It wasn't going to last long, even if she knew it was going to feel like it.