Lupin’s briefcase slipped from the desk; he had to stoop quickly to catch it.
“Yes,” he said, straightening up, “Black must have found a way to fight them. I wouldn’t have believed it possible… Dementors are supposed to drain a wizard of his powers if he is left with them too long…”
“You made that Dementor on the train back off,” said Harry suddenly.
“There are—certain defenses one can use,” said Lupin. “But there was only one Dementor on the train. The more there are, the more difficult it becomes to resist.”
“What defenses?” said Harry at once. “Can you teach me?”
“I don’t pretend to be an expert at fighting Dementors, Harry, quite the contrary…”
“But if the Dementors come to another Quidditch match, I need to be able to fight them—”
Lupin looked into Harry’s determined face, hesitated, then said, “Well… all right. I’ll try and help. But it’ll have to wait until next term, I’m afraid. I have a lot to do before the holidays. I chose a very inconvenient time to fall ill.”
* * *
What with the promise of anti Dementor lessons from Lupin, the thought that he might never have to hear his mother’s death again, and the fact that Ravenclaw flattened Hufflepuff in their Quidditch match at the end of November, Harry’s mood took a definite upturn. Gryffindor were not out of the running after all, although they could not afford to lose another match. Wood became repossessed of his manic energy, and worked his team as hard as ever in the chilly haze of rain that persisted into December. Harry saw no hint of a Dementor within the grounds. Dumbledore’s anger seemed to be keeping them at their stations at the entrances.
Two weeks before the end of the term, the sky lightened suddenly to a dazzling, opaline white and the muddy grounds were revealed one morning covered in glittering frost. Inside the castle, there was a buzz of Christmas in the air. Professor Flitwick, the Charms teacher, had already decorated his classroom with shimmering lights that turned out to be real, fluttering fairies. The students were all happily discussing their plans for the holidays. Both Ron and Hermione had decided to remain at Hogwarts, and though Ron said it was because he couldn’t stand two weeks with Percy, and Hermione insisted she needed to use the library, Harry wasn’t fooled; they were doing it to keep him company, and he was very grateful.