History of Magic
The night had come and gone and by morning nearly all the staff and students were all well aware of what had happened. History of Magic had a poor turn out on a good day, and despite the instruction to carry on with classes, Coulson didn't hold much hope that those who did turn up were absorbing much information.
He'd closed the window to hide any distracting reminders of their entombment, pacing at the front of the class as he lectured. "And who can tell me who played the biggest role in ending the Goblin War? Anyone?"