sion in life to bite and to conta-minate as many people as possible; he wants to create enough were-wolves to overcome the wizards. Voldemort has promised him prey in return for his services. Greyback specializes in children. . . . Bite them young, he says, and raise them away
from their parents, raise them to hate normal wizards. Voldemort has threatened to unleash him upon people's sons and daughters; it is a threat that usually produces good results." Lupin paused and then said, "It was Greyback who bit me." "What?" said Harry, astonished. "When - when you were a kid, you mean?" "Yes. My father had offended him. I did not know, for a very long time, the identity of the werewolf who had attacked me; I even felt pity for him, thinking that he had had no control, know-ing by then how it felt to transform. But Greyback is not like that. At the full moon, he positions himself close to victims, ensuring that he is near enough to strike. He plans it all. And this is the man Voldemort is using to marshal the werewolves. I cannot pretend that my particular brand of reasoned argument is making much headway against Greyback's insistence that we werewolves deserve blood, that we ought to revenge ourselves on normal people." "But you are normal!" said Harry fiercely. "You've just got a - a problem -" Lupin burst out laughing. "Sometimes you remind me a lot of James. He called it my 'furry little problem in company. Many people were under the impression that I owned a badly behaved rabbit."
He accepted a glass of eggnog from Mr. Weasley with a word of thanks, looking slightly more cheerful, Harry, meanwhile, felt a rush of excitement: This last mention of his father had reminded him that there was something he had been looking forward to ask-ing Lupin. "Have you ever heard of someone called the Half-Blood Prince?" "The Half-Blood what?" "Prince," said Harry, watching him closely for signs of recogni-tion. "There are no Wizarding princes," said Lupin, now smiling. "Is this a title you re thinking of adopting? I should have thought be-ing 'the Chosen One' would be enough." "It's nothing to do with me!" said Harry indignantly. "The Half-Blood Prince is someone who used to go to Hogwarts, I've got his old Potions book. He wrote spells all over it, spells he invented. One of them was Levicorpus -" "Oh, that one had a great vogue during my time at Hogwarts," said Lupin reminiscently. "There were a few months in my fifth year when you couldn't move for being hoisted into the air by your ankle." "My dad used it," said Harry. "I saw him in the Pensieve, he used it on Snape."
He tried to sound casual, as though this was a throwaway com-ment of no real importance, but he was not sure he had achieved the right effect; Lupins smile was a little too understanding. "Yes," he said, "but he wasn't the only one. As I say, it was very popular. . . . You know how these spells come and go. , . ." "But it sounds like it was invented while you were at school," Harry persisted. "Not necessarily," said Lupin. "Jinxes go in and out of fashion like everything else." He looked into Harry's face and then said quietly, "James was a pureblood, Harry, and I promise you, he never asked us to call him 'Prince.'" Abandoning pretense, Harry said, "And it wasn't Sirius? Or you?" "Definitely not." "Oh." Harry stared into the fire. "I just thought - well, he's helped me out a lot in Potions classes, the Prince has." "How old is this book, Harry?" "I dunno, I've never checked."
"Well, perhaps that will give you some clue as to when the Prince was at Hogwarts," said Lupin. Shortly after this, Fleur decided to imitate Celestina singing "A Cauldron Full of Hot, Strong Love," which was taken by everyone, once they had glimpsed Mrs. Weasley's expression, to be the cue to go to bed. Harry and Ron climbed all the way up to Ron's attic bedroom, where a camp bed had been added for Harry. Ron fell asleep almost immediately, but Harry delved into his trunk and pulled out his copy of Advanced Potion-Making before getting into bed. There he turned its pages, searching, until he finally found, at the front of the book, the date that it had been pub-lished. It was nearly fifty years old. Neither his father, nor his father's friends, had been at Hogwarts fifty years ago. Feeling disappointed, Harry threw the book back into his trunk, turned off the lamp, and rolled over, thinking of werewolves and Snape, Stan Shunpike and the Half-Blood Prince, and finally falling into an uneasy sleep full of creeping shadows and the cries of bitten children. . . . "She's got to be joking. . . ." Harry woke with a start to find a bulging stocking lying over the end of his bed. He put on his glasses and looked around; the tiny window was almost completely obscured with snow and, in front of it, Ron was sitting bolt upright in bed and examining what ap-peared to be a thick gold chain. "What's chat?" asked Harry. '
"Its from Lavender," said Ron, sounding revolted^ "She earn honestly think I'd wear ..." Harry looked more closely and let out a shout of laughter, Dan gling from the chain in large gold letters were the words: "My sweetheart" "Nice," he said. "Classy. You should definitely wear it in front ol Fred and George." "If you tell them," said Ron, shoving the necklace out of sight under his pillow, "I - I - I'll -" "Stutter at me?" said Harry, grinning. "Come on, would I?" "How could she think I'd like something like that, though?" Ron demanded of thin air, looking rather shocked.
"Well, think back," said Harry. "Have you ever let it slip that you'd like to go out in public with the words 'My Sweetheart' round your neck?" "Well... we don't really talk much," said Ron. "It's mainly . . ." "Snogging," said Harry. "Well, yeah," said Ron. He hesitated a moment, then said, "Is Hermione really going out with McLaggen?" "I dunno," said Harry. "They were at Slughorn's party together, but I don't think it went that well." Ron looked slightly more cheerful as he delved deeper into his stocking. Harrys presents included a sweater with a large Golden Snitch worked onto the front, hand-knitted by Mrs. Weasley, a large box of Weasleys' Wizard Wheezes products from the twins, and a slightly damp, moldy-smelling package that came with a label read-ing To Master, From Kreacher, Harry stared at it. "D'you reckon this is safe to open?" he asked. "Can't be anything dangerous, all our mail's still being searched at the Ministry," replied Ron, though he was eyeing the parcel suspiciously. "I didn't think of giving Kreacher anything. Do people usually give their house-elves Christmas presents?" asked Harry, prodding the parcel cautiously.
"Hermione would," said Ron. "But let's wait and see what it is before you start feeling guilty." A moment later, Harry had given a loud yell and leapt out of his camp bed; the package contained a large number of maggots. "Nice," said Ron, roaring with laughter. "Very thoughtful." "I'd rather have them than that necklace," said Harry, which sobered Ron up at once. Everybody was wearing new sweaters when they all sat down for Christmas lunch, everyone except Fleur (on whom, it appeared, Mrs. Weasley had not wanted to waste one) and Mrs. Weasley herself, who was sporting a brand-new midnight blue witch's hat glittering with what looked like tiny starlike diamonds, and a spec-tacular golden necklace. "Fred and George gave them to me! Aren't they beautiful?" .: "Well, we find we appreciate you more and more, Mum, now we're washing our own socks," said George, waving an airy hand. "Parsnips, Remus?" "Harry, you've got a maggot in your hair," said Ginny cheerfully, leaning across the table to pick it out; Harry felt goose bumps erupt up his neck that had nothing to do with the maggot. "'Ow 'orrible," said Fleur, with an affected little shudder. "Yes, isn't it?" said Ron. "Gravy, Fleur?"
. In his eagerness to help her, he knocked the gravy boat flying; Bill waved his wand and the gravy soared up in the air and returned meekly to the boat. "You are as bad as zat Tonks," said Fleur to Ron, when she had finished kissing Bill in thanks. "She is always knocking -" "I invited dear Tonks to come along today," said Mrs. Weasley, setting down the carrots with unnecessary force and glaring at Fleur. "But she wouldn't come. Have you spoken to her lately, Remus?" "No, I haven't been in contact with anybody very much," said Lupin. "But Tonks has got her own family to go to, hasn't she?" "Hmmm," said Mrs. Weasley. "Maybe. I got the impression she was planning to spend Christmas alone, actually." She gave Lupin an annoyed look, as though it was all his fault she was getting Fleur for a daughter-in-law instead of Tonks, but Harry, glancing across at Fleur, who was now feeding Bill bits of turkey off her own fork, thought that Mrs. Weasley was fighting a long-lost battle. He was, however, reminded of a question he had with regard to Tonks, and who better to ask than Lupin, the man who knew all about Patronuses? "Tonks's Patronus has changed its form," he told him. "Snape said so anyway. I didn't know that could happen. Why would your Patronus change?"
Lupin took his time chewing his turkey and swallowing before saying slowly, "Sometimes ... a great shock ... an emotional up-heaval ..." "It looked big, and it had four legs," said Harry, struck by a sud-den thought and lowering his voice. "Hey ... it couldn't be - ?" "Arthur!" said Mrs. Weasley suddenly. She had risen from her chair; her hand was pressed over her heart and she was staring out of the kitchen window. "Arthur - it's Percy!" "What?" Mr. Weasley looked around. Everybody looked quickly at the window; Ginny stood up for a better look. There, sure enough, was Percy Weasley, striding across the snowy yard, his horn-rimmed glasses glinting in the sunlight. He was not, however, alone. "Arthur, he's - he's with the Minister!" And sure enough, the man Harry had seen in the Daily Prophet was following along in Percy's wake, limping slightly, h