She'd heard a rumor that there were ghosts in Hogwarts left over from the final battle. If they were true, she hadn't seen any familiar faces floating in the air when she made her frequent visits to the castle. Maybe they were hiding from her or maybe she didn't allow herself to actually see them. When she was locked in her broom cupboard, terrified and all alone in the dark, a few times she felt the already chilly temperature go down. Afraid of what she might see if she opened her eyes, she kept them tightly closed until the space heated up again. Whomever, or whatever, it was, never spoke. She didn't want to see one of the most vivacious people she'd ever known cold in death. It was too hard.