Hermione sat back in her chair.  Shite. Her equations were correct and accurately represented each of those conditions. So Severus Snape really might be a near-perfect match. She wouldn’t even consider the matter if she had even the slightest hope of other options, but she hadn’t seen the spell reveal anyone else in nearly a month. She decided to give the spell a bit more time, spend her lunch breaks in more populated areas, and wait before acting on this information. Maybe she would find other, less intimidating options in the meantime.