It was where she had discovered Remus was a werewolf (she felt a pang of sadness, his loss still hurt), where she’d gone for ways to help Harry during the Triwizard Tournament.  It had been her place of solace in fifth year when Umbridge was taking over and everything around them was going to shit.  So, it should come as no surprise that, at a complete loss where to take the case now, she found herself in the small library in Severus’s study – but she doubted whether she would find anything useful here.