¡°Everyone into their sleeping bags!¡± shouted Percy. ¡°Come on, now, no more talking! Lights out in ten minutes!¡±
They reached Hagrid's cabin and knocked. He was a minute in answering, and when he did, he looked all around for his visitor, pale-faced and trembling.
Harry watched him flick through the textbook, to the very back chapter, which he must know they hadn't covered.
Snape turned it over, his eyes on Harry.