¡°Crookshanks doesn't understand it's wrong!¡± said Hermione, her voice shaking. ¡°All cats chase rats, Ron!¡±
There was a bush at the very edge of the water. Harry threw himself behind it, peering desperately through the leaves. On the opposite bank, the glimmers of silver were suddenly extinguished. A terrified excitement shot through him ¡ª any moment now ¡ª
Puzzled but interested, the class got to its feet and followed Professor Lupin out of the classroom. He led them along the deserted corridor and around a corner, where the first thing they saw was Peeves the Poltergeist, who was floating upside down in midair and stuffing the nearest keyhole with chewing gum.