Cho Chang and Estella Rosier
For three years, Cho had watched people's lives be ruined by Voldemort and his followers, hers among them. And now, finally, she had the chance to help rid the world of them. Buoyed by the anger and pain she still felt from Cedric (three years), Marietta (ten months), and her dismal job (every single bloody day), and summoned to Hogwarts by McGonagall's Patronus, she was here, and she was ready to fight.
As she left the Room, she passed students still heading for the tunnels. She pointed them in the right direction, before taking off and running in the opposite direction, losing herself in the maze of Hogwarts halls and staircases that she used to know well, nearing, she thought, the entrance, but not entirely certain. She slowed, holding her wand steady in front of her.
She hadn't seen anyone for a couple of minutes when she spotted the Death Eater. "Wand up," she ordered her opponent.