Hermione resolved to head into the restricted section and look up demonic influences. Demons hadn't been a thing since the dark ages, most of them had wised up and stayed with muggles. Witches and wizards could cast them out to wherever it was that they came from. Some said hell; none cast out ever were able to make it back. So it wasn't exactly an impossibility. However what felt impossible was Hogwarts allowing one inside its walls. She huffed and washed her face looking at herself. 