Sarah listened intently... and beamed when she got a point. She had little tricks to remember a lot of things. Like acronyms, pneumonics, songs and rhymes. The best part was sharing it with others, although often people thought she was strange due to the way her mind worked. She nodded at the point about the time... More facts....

Then the professor starting thinking.. and then Sarah hurt that pop. The sound and the look of her beloved professor sent an andreniline hike in her direction. But she was not the type to get hysterical.
She leaped out of her seat and sprinted to wards the professor. She could use a few spells herself.. but she won't. It was better to leave that to some one capable, like the healer. She would have run to the healer herself if she were fast enough. "Someone call the healer.. quick and fast" she said. It was a bit far to the hospital wing so.. "And can somone else please go get the nearest staff member? They can send a patronus and thus get the healer quicker. "
Was she frightening the young ones? Sarah did not want to do that, "Don't worry, everything will be okay" She said in a calm voice. It always turns out for best, and worrying and stressing won't make it better.