When Catharsis got the letter in the mail, she was ecstatic. Hogwarts had been her dream since she was a little girl, and now she was finally attending. She didn't think anything would ruin her dream. That was, until she got pulled into the school's greatest mystery that seemed an awful lot like one that had happened 40 years prior. - I don't plan on following anything canon BUT what was written in the first 7 books, so I apologize if it doesn't follow anything that is considered canon :)