"Four o'clock," he said authoritatively. "And if you further question my actions, I will have to add a few more weeks to your punishment. As a professor, I have my reasons for this. Please do not be late." And with no more said, he swept away from the crowd like a huge bird, gliding up the stairs in the Entrance Hall to return to his office, where he could think about what he had done, and prepare some work for the Cullen boy to do later.