Cassandra slipped in silently at the back of the class and stood by the door, hoping the students wouldn't see her. She didn't want to disrupt the class... She nodded at the professor, and gave him a slight smirk. Potions had always been one of her favorite classes, and under the excuse of making sure one of the kids didn't blow up a cauldron in their faces, she figured she could at least get to watch this professor teach...