Brrr. Heather had to pull her robes tighter to her as she walked down the corridor to Arithmancy. Once she entered the classroom, though, she could she why. Professor Tanner had opened the window. Which she didn't understand. Why open the window when it was getting cooler outside? Was it a tatic to keep the class awake? She should worry more about making sure certain people (Kevin.....) behaved, if the desasterous Charms class was anything to go by.

Heather chose her seat and read the board. And then had to get back up to get a slip of paper. She chose a pretty light blue and sat back down, writing out the requried information. She guessed from this that they were going to be doing some calculations, because why else have them write this stuff down?