Quicksilver, indeed. A woman gifted with the ability to run faster than any human being could think possible. Yet, was that gift only useful for running away? So far, that was what it seemed like. Yes, she'd been able to help take some of the younger students to safety, and that was a very good thing. But she hadn't been able to help those who were trying to defend the school from the Sisterhood attackers. There was more that she could have done. The only problem was, Pietra didn't know her powers well enough to use them in a way that would have been more helpful in that situation.
She hadn't meant for Weston to worry about her. During the aftermath of the attack, she'd just...ran. Ran away to somewhere on the grounds where she could be alone with her thoughts. Since then she hadn't done much talking to anyone. Though that wasn't really fair of her to do. Her brother had to be concerned, not knowing whether or not she was hurt or if everything was alright.
When she heard the knock on the door and that familiar voice, Pietra turned to look. "Yes, I'm here. Come in." The door was open, so he wouldn't have any problem just letting himself in.