“How did she know your scar hurt in Divination?” Ron said. “There’s no way she was there, there’s no way she could’ve heard—”

“The window was open,” said Harry. “I opened it to breathe.”

“You were at the top of North Tower!” Hermione said. “Your voice couldn’t have carried all the way down to the grounds!”

“Well, you’re the one who’s supposed to be researching magical methods of bugging!” said Harry. “You tell me how she did it!”

“I’ve been trying!” said Hermione. “But I . . . but . . . ”

An odd, dreamy expression suddenly came over Hermione’s face. She slowly raised a hand and ran her fingers through her hair.

“Are you all right?” said Ron, frowning at her.

“Yes,” said Hermione breathlessly. She ran her fingers through her hair again, and then held her hand up to her mouth, as though speaking into an invisible walkie-talkie. Harry and Ron stared at each other.

“I’ve had an idea,” Hermione said, gazing into space. “I think I know . . . because then no one would be able to see . . . even Moody . . . and she’d have been able to get onto the window ledge . . . but she’s not allowed . . . she’s definitely not allowed . . . I think we’ve got her! Just give me two seconds in the library—just to make sure!”

With that, Hermione seized her school bag and dashed out of the Great Hall.

“Oi!” Ron called after her. “We’ve got our History of Magic exam in ten minutes! Blimey,” he said, turning back to Harry, “she must really hate that Skeeter woman to risk missing the start of an exam. What’re you going to do in Binns’s class—read again?”

Exempt from the end-of-term tests as a Triwizard champion, Harry had been sitting in the back of every exam class so far, looking up fresh hexes for the third task.

“S’pose so,” Harry said to Ron; but just then, Professor McGonagall came walking alongside the Gryffindor table toward him.

“Potter, the champions are congregating in the chamber off the Hall after breakfast,” she said.

“But the task’s not till tonight!” said Harry, accidentally spilling scrambled eggs down his front, afraid he had mistaken the time.

“I’m aware of that, Potter,” she said. “The champions’ families are invited to watch the final task, you know. This is simply a chance for you to greet them.”

She moved away. Harry gaped after her.

“She doesn’t expect the Dursleys to turn up, does she?” he asked Ron blankly.

“Dunno,” said Ron. “Harry, I’d better hurry, I’m going to be late for Binns. See you later.”