"Thatś just it," said Malfoy. "You´re not. Everyone else has. Look."

Harry glanced around and saw that this was true. Everyone had resumed their seats, back in their own bodies. Snape had gone back to lecturing about the uses of Polyjuice Potion, apparently confident that all his students were back to their rightful selves. Harry looked wildly down at himself, then back at Draco.

"How — how longś it been?"

"Forty-five minutes," said Draco, consulting his Rolex. "We ought to have changed back by now."

"Well, whatś going on?"

Malfoy shook his head, an odd little smile on his face. "I wish I knew," he said.

Harryś heart began to pound wildly. "Did you do something to the Potion?" he hissed. "Malfoy-" "Of course not, Potter," said Malfoy with contempt, "d´you really think I want-" But Harry wasn´t listening. He grabbed hold of Dracoś robe and yanked him forward. "Turn me back!" he hissed violently. "Do it now, or I´ll break your face!"

Malfoy, who wasn´t used to Muggle expressions like "break your face", looked at Harry blankly. Then he started to laugh. This was too much for Harry, who swung at Draco and landed a solid punch on his jaw, which knocked him to the floor. His quill, cauldron, and books rained down around him. Harry jumped down out of his seat, grabbed Draco by the front of his robes, and the two of them rolled over and over, hitting at each other with relish.

The rest of the class swung around to look at them, and Snape began running towards them, shouting at them to desist. Harry let go of Draco, suddenly shocked, but Draco, apparently thinking Harry was about to hit him again, lunged upward and landed a perfect uppercut to Harryś chin. Harry, who had been looking over at Snape, was unprepared for this assault. He flew backward and slammed into the wall, knocking his head hard against the ancient stone.