Harry told Lupin what had happened. When he'd finished, Lupin was smiling again.
¡°It's not fair, he was only filling in, why should he give us homework?¡±
¡°On the count of three, Neville,¡± said Professor Lupin, who was pointing his own wand at the handle of the wardrobe. ¡°One ¡ª two ¡ª three ¡ª now!¡±
¡°But surely you already knew that, Sibyll?¡± said Professor McGonagall, her eyebrows raised.