Fiona, Ozzie, and Travers
Long before the day or the battle had even started Fiona knew she was out of her depth. The last few weeks leading up to this moment had made it plenty clear to her. If it hadn't been for Audrey she would have tried to make her escape already, though she'd seen how well that had turned out for her housemates. Deep down she had wanted to help hold down things while Audrey did her job of getting the students out and then follow suit, both her and Aud, and get to safety while those better trained than them were left to defend the castle. But it had been clear Audrey wanted to do her share and stay so Fiona had kept the urge to herself.
So she stayed too, doing her best to keep safe and use every jinx and counter-jinx she'd picked up over the years to clear the way for others. She'd just broken through a scuffle on the fourth floor between a Death Eater and a handful of sixth years and scurried onto the stairs when they lurched and she had to grab hold of the banister to steady herself, unaware of her company until a jet of light blasted into the stone beside her hand. She jerked around in time to see a Death Eater and leapt aside to avoid another hex.