Dunstan was about to thank the student who'd cast a cleaning spell on his robes (and then on herself too, as a pot of ink tumbled), when he heard someone yelp behind him as they failed to catch their own textbook.

Dun stood by the door to the boys' dormitories and let the younger students go up first, before joining them himself, wondering dully if Peeves would be there waiting for them with a Cheshire cat grin.