Kettleburn stumbled blindly through the snow, still shaking, but following the instructions he had just been given. His steps were quick and jerky, sometimes accompanied by animal-like moans, the only expression of pain he was allowed to have. He passed by Hagrid's hut, but his dog was too busy gnawing on a bone to pay him any attention. Halfway to the castle, the professor collapsed in a heap, face-to-face with the snow. Dylan's curse had taken effect. If he didn't receive medical attention immediately, he would die.