With any luck, they could all leave class today and cast whatever charm they were about to learn. Merlin only knew they should have had this lesson weeks ago. Sophie turned toward a younger Ravenclaw when the girl said something about insulation. "I agree with her," she said, raising her hand. "Is there an insulation charm?"

But then--what about the snow INSIDE the castle? "Would that stop the snow inside the castle, though? How is that even possible? There's got to be some weird sort of magic making that happen," she added. Because as far as she knew, there were no holes in the ceiling to make it snow in the Great Hall.