Chapter 19:

Normal Pov

When he arrived in the entrance hall at eight o'clock that night, he found an unusually large number of girls lurking there, all of whom seemed to be staring at him resentfully as he approached Luna. She was wearing a set of spangled silver robes that were attracting a certain amount of giggles from the onlookers, but otherwise she looked quite nice. Harry was glad, in any case, that she had left off her radish earrings, her butterbeer cork necklace, and her Spectrespecs.

"Hi," he said. "Shall we get going then?"

"Oh yes," she said happily. "Where is the party?"

"Slughorn's office," said Harry, leading her up the marble staircase away from all the staring and muttering. "Did you hear, there's supposed to be a vampire coming?"

"Rufus Scrimgeour?" asked Luna.

"I - what?" said Harry, disconcerted. "You mean the Minister of Magic?"

"Yes, he's a vampire," said Luna matter-of-factly. "Father wrote a very long article about it when Scrimgeour first took over from Cornelius Fudge, but he was forced not to publish by somebody from the Ministry. Obviously, they didn't want the truth to get out!"

Harry, who thought it most unlikely that Rufus Scrimgeour was a vampire, but who was used to Luna repeating her father's bizarre views as though they were fact, did not reply; they were already approaching Slughorn's office and the sounds of laughter, music, and loud conversation were growing louder with every step they took.

Whether it had been built that way, or because he had used magical trickery to make it so, Slughorn's office was much larger than the usual teacher's study. The ceiling and walls had been draped with emerald, crimson , and gold hangings, so that it looked as though they were all inside a vast tent. The room was crowded and stuffy and bathed in the red light cast by an ornate golden lamp dangling from the center of the ceiling in which real fairies were fluttering, each a brilliant speck of light. Loud singing accompanied by what sounded like mandolins issued from a distant corner; a haze of pipe smoke hung over several elderly warlocks deep in conversation, and a number of house-elves were negotiating their way squeakily through the forest of knees, obscured by the heavy silver platters of food they were bearing, so that they looked like little roving tables.

"Harry, m'boy!" boomed Slughorn, almost as soon as Harry and Luna had squeezed in through the door. "Come in, come in, so many people I'd like you to meet!"

Slughorn was wearing a tasseled velvet hat to match his smoking jacket. Gripping Harry's arm so tightly he might have been hoping to Disapparate with him, Slughorn led him purposefully into the party; Harry seized Luna's hand and dragged her along with him.

"Harry, I'd like you to meet Eldred Worple, an old student of mine, author of ' Blood Brothers: My Life Amongst the Vampires' - and, of course, his friend Sanguini."

Worple, who was a small, stout, bespectacled man, grabbed Harry's hand and shook it enthusiastically; the vampire Sanguini, who was tall and emaciated with dark shadows under his eyes, merely nodded. He looked rather bored. A gaggle of girls was standing close to him, looking curious and excited.

"Harry Potter, I am simply delighted!" said Worple, peering shortsightedly up into Harry's face. "I was saying to Professor Slughorn only the other day, 'Where is the biography of Harry Potter for which we have all been waiting?'"

"Er," said Harry, "were you?"

"Just as modest as Horace described!" said Worple. "But seriously" — his manner changed; it became suddenly businesslike — "I would be delighted to write it myself— people are craving to know more about you, dear boy, craving! If you were prepared to grant me a few interviews, say in four- or five-hour sessions, why, we could have the book finished within months. And all with very little effort on your part, I assure you — ask Sanguini here if it isn't quite — Sanguini, stay here!" added Worple, suddenly stern, for the vampire had been edging toward the nearby group of girls, a rather hungry look in his eye. "Here, have a pasty," said Worple, seizing one from a passing elf and stuffing it into Sanguini's hand before turning his attention back to Harry. "My dear boy, the gold you could make, you have no idea —"

"I'm definitely not interested," said Harry firmly, "and I've just seen a friend of mine, sorry." He pulled Luna after him into the crowd; he had indeed just seen a long mane of brown hair disappear between what looked like two members of the Weird Sisters.

"Hermione! Hermione !"

"Harry! There you are, thank goodness! Hi, Luna !"

"What's happened to you?" asked Harry, for Hermione looked distinctly disheveled, rather as though she had just fought her way out of a thicket of Devil's Snare.

"Oh, I've just escaped — I mean, I've just left Cormac," she said. "Under the mistletoe," she added in explanation, as Harry continued to look questioningly at her.

"Serves you right for coming with him," he told her severely. "I thought he'd annoy Ron most," said Hermione dispassionately. "I debated for a while about Zacharias Smith, but I thought, on the whole —"

"You considered Smith?" said Harry, revoked.

"Yes, I did, and I'm starting to wish I'd chosen him, McLaggen makes Grawp look a gentleman. Let's go this way, we'll be able to see him coming, he's so tall. . . ." The three of them made their way over to the other side of the room, scooping up goblets of mead on the way, realizing too late that Professor Trelawney was standing there alone.

"Hello," said Luna politely to Professor Trelawney.

"Where's Juliunna?" Harry asked her.

"I don't know, she didn't show up. We were supposed to meet at the entrance to the Slytherin Common Room. She never surfaced." Hermione said with a sigh.

"I think its Malfoy again." She said. Harry nodded once and turned to face Professor Trelawney, making a mental note to check with Juliunna in the morning if her relationship with Malfoy is actually good for her.

"Good evening, my dear," said Professor Trelawney, focusing upon Luna with some difficulty. Harry could smell cooking sherry again. "I haven't seen you in my classes lately. .."

"No, I've got Firenze this year," said Luna.

"Oh, of course," said Professor Trelawney with an angry, drunken titter. "Or Dobbin, as I prefer to think of him. You would have thought, would you not, that now I am returned to the school Professor Dumbledore might have got rid of the horse? But no ... we share classes. . . . It's an insult, frankly, an insult. Do you know. . ." Professor Trelawney seemed too tipsy to have recognized Harry.

Under cover of her furious criticisms of Firenze, Harry drew closer to Hermione and said, "Let's get something straight. Are you planning to tell Ron that you interfered at Keeper tryouts?"

Hermione raised her eyebrows. "Do you really think I'd stoop that low?"

"Harry looked at her shrewdly. "Hermione, if you can ask McLaggen —"

"There's a difference," said Hermione with dignity. "I've got no plans to tell Ron anything about what might, or might not, have happened at Keeper tryouts."

"Good," said Harry fervently. "Because he'll just fall apart again, and we'll lose the next match —"

"Quidditch!" said Hermione angrily. "Is that all boys care about? Cormac hasn't asked me one single question about myself, no, I've just been treated to 'A Hundred Great Saves Made by Cormac McLaggen' nonstop ever since — oh no, here he comes!" She moved so fast it was as though she had Disapparated; one moment she was there, the next, she had squeezed between two guffawing witches and vanished.

"Seen Hermione?" asked McLaggen, forcing his way through the throng a minute later.

"No, sorry," said Harry, and he turned quickly to join in Luna's conversation, forgetting for a split second to whom she was talking.

"Harry Potter!" said Professor Trelawney in deep, vibrant tones, noticing him for the first time.

"Oh, hello," said Harry unenthusiastically.

"My dear boy!" she said in a very carrying whisper. "The rumors! The stories! 'The Chosen One'! Of course, I have known for a very long time. . . . The omens were never good, Harry. . . But why have you not returned to Divination? For you, of all people, the subject is of the utmost importance!"

"Ah, Sybil, we all think our subject's most important!" said a loud voice, and Slughorn appeared at Professor Trelawney s other side, his face very red, his velvet hat a little askew, a glass of mead in one hand and an enormous mince pie in the other. "But I don't think I've ever known such a natural at Potions!" said Slughorn, re-garding Harry with a fond, if bloodshot, eye. "Instinctive, you know — like his mother! I've only ever taught a few with this kind of ability, I can tell you that, Sybi — why even Severus —" And to Harry's horror, Slughorn threw out an arm and seemed to scoop Snape out of thin air toward them. "Stop skulking and come and join us, Severus!" hiccuped Slughorn happily. "I was just talking about Harry's exceptional potion making! Some credit must go to you, of course, you taught him for five years!"

Trapped, with Slughorns arm around his shoulders, Snape looked down his hooked nose at Harry, his black eyes narrowed. "Funny, I never had the impression that I managed to teach Potter anything at all."

"Well, then, it's natural ability!" shouted Slughorn. "You should have seen what he gave me, first lesson, Draught of Living Death — never had a student produce finer on a first attempt, I don't think even you, Severus —"

"Really?" said Snape quietly, his eyes still boring into Harry, who felt a certain disquiet. The last thing he wanted was for Snape to start investigating the source of his newfound brilliance at Potions.

"Remind me what other subjects you're taking, Harry?" asked Slughorn .

"Defense Against the Dark Arts, Charms, Transfiguration , Herbology..."

"All the subjects required, in short, for an Auror." said Snape with the faintest sneer.

"Yeah, well, that's what I'd like to do," said Harry defiantly.

"And a great one you'll make too!" boomed Slughorn.

"I don't think you should be an Auror, Harry," said Luna unexpectedly. Everybody looked at her. "The Aurors are part of the Rotfang Conspiracy, I thought everyone knew that. They're planning to bring down the Ministry of Magic from within using a combination of Dark Magic and gum disease."

Harry inhaled half his mead up his nose as he started to laugh. Really, it had been worth bringing Luna just for this. Emerging, from his goblet, coughing, sopping wet but still grinning, he saw something calculated to raise his spirits even higher: Draco Malfoy and, to his surprise, Juliunna being dragged by the ear toward them by Argus Filch.

"Professor Slughorn," wheezed Filch, his jowls aquiver and the maniacal light of mischief-detection in his bulging eyes, "I discovered this girl and boy lurking in an upstairs corridor. They claim to have been invited to your party and to have been delayed in setting out. Did you issue them with an invitation?" Filch said. Juliunna pulled out of Filch's tight grip and moved over to the side.

"Why of course, this is Miss Riddle, one of my crown jewels, and I suppose that this is your date, Miss?" Slughorn said, looking at Juliunna.

"Yes." She said. Draco pushed Filch away and grabbed Juliunna's arm.

"Oh. Sorry Professor. Neccasarry precautions to take of course." Filch said.

"Oh we know." Juliunna smirked. "Anyway, sorry Professor Slughorn. Draco fell asleep when I came down to get him." Juliunna explained, shaking Slughorns hand. "Oh no worries. No worries my dear, we all have those days." He laughed.

Filch's expression of outraged disappointment was perfectly predictable; But why, Harry wondered, watching him, did Malfoy look almost equally unhappy? And why was Snape looking at Malfoy as though both angry and . . . was it possible? ... a little afraid? But almost before Harry had registered what he had seen, Filch had turned and shuffled away, muttering under his breath; Malfoy had composed his face into a smile and was thanking Slughorn for his generosity, and Snape's face was smoothly inscrutable again.

"It's nothing, nothing," said Slughorn, waving away Malfoy's thanks. "I did know your grandfather, after all..."

"He always spoke very highly of you, sir," said Malfoy quickly. "Said you were the best potion-maker he'd ever known. ..."

Harry stared at Malfoy. It was not the sucking-up that intrigued him; he had watched Malfoy do that to Snape for a long time. It was the fact that Malfoy did, after all, look a little ill. This was the first time he had seen Malfoy close up for ages; he now saw that Malfoy had dark shadows under his eyes and a distinctly grayish tinge to his skin. Juliunna gave Draco a soft look, and then stepped forward to greet Hermione. They exchanged hello's and promises to never be late again.

"I'd like a word with you, Draco," said Snape suddenly. Draco had just took a step forward, and turned to Snape, narrowing his eyes.

"Now , Severus," said Slughorn, hiccuping again, "it's Christmas, and he was rightfully invited. Don't be too hard —"

"I am his Head of House, and I shall decide how hard, or other-wise, to be," said Snape curtly. "Follow me, Draco."

They left, Snape leading the way, Malfoy looking resentful. "I'll be back." He called out to Juliunna, who nodded. Harry stood there for a moment, irresolute, then said, "I'll be back in a bit, Luna… Er — bathroom."

"Your dress is beautiful. Why were you late?" Hermione asked Juliunna when Harry left the room.

"Thank you. If you must know, Draco was doing something. He made me sit in the other hallway while he went to go check on some toy or something." Juliunna said, waving her thinly laced gloved hands. She was wearing a pure, blood red dress. On her head lay a crown that Draco's mother had given her. Hermione and Luna started to compliment her on her lovely new heels, when Draco walked back in the room. His face was pale and set. He strode right up to Juliunna, and grabbed her wrist.

"We're leaving." He said, his lips barely moving.

"But we just got here." Juliunna moaned.

"I said we're going." Draco said. His breathing was harsh, and he looked sickly. Juliunna frowned. "Please." He added, more softly and desperately.

"Goodbye." She said Hermione, who frowned.

"But-!"

Draco dragged Juliunna out of the party. Hermione shot a foul look at Draco's head as he and Juliunna left the room.

"I swear, one of these days." Hermione muttered deeply.

…

"So Snape was offering to help him? He was definitely offering to help him?"

"If you ask. that once more," said Harry, "I'm going to stick this sprout —"

"I'm only checking!" said Ron. They were standing alone at the Burrow's kitchen sink, peeling a mountain of sprouts for Mrs. Weasley. Snow was drifting past the window in front of them.

"Yes, Snape was offering to help him!" said Harry. This was the first time he and Ron had been face to face since this morning, without the worry of people overhearing. "He said he'd promised Malfoy's mother to protect him, that he'd made an Un-breakable Oath or something —"

"An Unbreakable Vow?" said Ron, looking stunned. "Nah, he can't have. . . . Are you sure?"

"Yes, I'm sure," said Harry. "Why, what does it mean?"

"Well, you can't break an Unbreakable Vow. . . ."

"I'd worked that much out for myself, funnily enough. What happens if you break it, then?"

"You die," said Ron simply. "Fred and George tried to get me to make one when I was about five. I nearly did too, I was holding hands with Fred and everything when Dad found us. He went mental," said Ron, with a reminiscent gleam in his eyes. "Only time I've ever seen Dad as angry as Mum, Fred reckons his left but-tock has never been the same since."

"Yeah, well, passing over Fred's left buttock —"

"I beg your pardon?" said Fred's voice as the twins entered the kitchen.

"Aaah, George, look at this. They're using knives and everything. Bless them."

"I'll be seventeen in two and a bit months' time," said Ron grumpily, "and then I'll be able to do it by magic!"

"But meanwhile," said George, sitting down at the kitchen table and putting his feet up on it, "we can enjoy watching you demonstrate the correct use of a — whoops-a-daisy!"

"You made me do that!" said Ron angrily, sucking his cut thumb. "You wait, when I'm seventeen —"

"I'm sure you'll dazzle us all with hitherto unsuspected magical skills," yawned Fred.

"And speaking of hitherto unsuspected skills, Ronald," said George, "what is this we hear from Ginny about you and a young lady called — unless our information is faulty — Lavender Brown?"

Ron turned a little pink, but did not look displeased as he turned back to the sprouts. "Mind your own business."

"What a snappy retort," said Fred. "I really don't know how you think of them. No, what we wanted to know was... how did it happen?"

"What d'you mean?"

"Did she have an accident or something?"

"What?"

"Well, how did she sustain such extensive brain damage? Careful, now!"

Mrs. Weasley entered the room just in time to see Ron throw the sprout knife at Fred, who had turned it into a paper airplane with one lazy flick of his wand,

"Ron!" she said furiously. "Don't you ever let me see you throwing knives again!"

"I wont," said Ron, "let you see," he added under his breath, as he turned back to the sprout mountain.

"Fred, George, I'm sorry, dears, but Remus is arriving tonight, so Bill will have to squeeze in with you two." ;

"No problem," said George.

"Then, as Charlie isn't coming home, that just leaves Harry and Ron in the attic, and if Fleur shares with Ginny and Juliunna —"

"— that'll make Ginny's Christmas —" muttered Fred. "— everyone should be comfortable. Well, they'll have a bed, anyway," said Mrs. Weasley, sounding slightly harassed.

"Percy definitely not showing his ugly face, then?" asked Fred. Mrs. Weasley turned away before she answered. "No, he's busy, I expect, at the Ministry."

"Or he's the world's biggest prat," said Fred, as Mrs. Weasley left the kitchen. "One of the two. "Well, let's get going, then, George."

"What are you two up to?" asked Ron. "Cant you help us with these sprouts? You could just use your wand and then we'll be free too!"

"No, I don't think we can do that," said Fred seriously. "It's very character-building stuff, learning to peel sprouts without magic, makes you appreciate how difficult it is for Muggles and Squibs —" "— and if you want people to help you, Ron," added George, throwing the paper airplane at him, "I wouldn't chuck knives at them. Just a little hint. We're off to the village, there's a very pretty girl working in the paper shop who thinks my card tricks are something marvelous . . , almost like real magic. ..."

"Gits," said Ron darkly, watching Fred and George setting off across the snowy yard. "Would've only taken them ten seconds and then we could've gone too."

"I couldn't," said Harry. "I promised Dumbledore I wouldn't wander off while I'm staying here."

"Oh yeah," said Ron. He peeled a few more sprouts and then said, "Are you going to tell Dumbledore what you heard Snape and Malfoy saying to each other?"

"Yep," said Harry. "I'm going to tell anyone who can put a stop to it, and Dumbledore's top of the list. I might have another word with your dad too."

"Pity you didn't hear what Malfoy's actually doing, though."

"I couldn't have done, could I? That was the whole point, he was refusing to tell Snape."

There was silence for a moment or two, then Ron said, "Course, you know what they'll all say? Dad and Dumbledore and all of them? They'll say Snape isn't really trying to help Malfoy, he was just trying to find out what Malfoy's up to."

"They didn't hear him," said Harry flatly. "No one's that good an actor, not even Snape."

"Yeah . . . I'm just saying, though." said Ron.

Harry turned to face him, frowning. "You think I'm right, though?" ,

"Yeah, I do!" said Ron hastily. "Seriously, I do! But they're all convinced Snape's in the Order, aren't they?"

Harry said nothing. It had already occurred to him that this would be the most likely objection to his new evidence; he could hear Hermione now: Obviously, Harry, he was pretending to offer help so he could trick Malfoy into telling him what he's doing. . . .

This was pure imagination, however, as he had had no opportunity to tell Hermione what he had overheard. She had disappeared from Slughorn's party before he returned to it, or so he had been informed by an irate McLaggen, and she had already gone to bed by the time he returned to the common room. As he and Ron had left for the Burrow early the next day, he had barely had time to wish her a happy Christmas and to tell her that he had some very important news when they got back from the holidays. He was not entirely sure that she had heard him, though; Ron and Lavender had been saying a thoroughly nonverbal good-bye just behind him at the time.

Still, even Hermione would not be able to deny one thing: Malfoy was definitely up to something, and Snape knew it, so Harry felt fully justified in saying "I told you so," which he had done several times to Ron already.

Harry did not get the chance to speak to Mr. Weasley, who was working very long hours at the Ministry, until Christmas Eve night. The Weasleys and their guests were sitting in the living room, which Ginny had decorated so lavishly that it was rather like sitting in a paper-chain explosion. Fred, George, Harry, and Ron were the only ones who knew that the angel on top of the tree was actually a garden gnome that had bitten Fred on the ankle as he pulled up carrots for Christmas dinner. Stupefied, painted gold, stuffed into a miniature tutu and with small wings glued to its back, it glowered down at them all, the ugliest angel Harry had ever seen, with a large bald head like a potato and rather hairy feet.

They were all supposed to be listening to a Christmas broadcast by Mrs. Weasleys favorite singer, Celestina Warbeck, whose voice was warbling out of the large wooden wireless set. Fleur, who seemed to find Celestina very dull, was talking so loudly in the corner that a scowling Mrs. Weasley kept pointing her wand at the volume control, so that Celestina grew louder and louder. Under cover of a particularly jazzy number called "A Cauldron Full of Hot, Strong Love," Fred and George started a game of Exploding Snap with Ginny. Ron kept shooting Bill and Fleur covert looks, as though hoping to pick up tips. Juliunna was on her back in front of the living room fire place, her hair sprawled over as she was sleeping.

Meanwhile, Remus Lupin, who was thinner and more ragged-looking than ever, was sitting beside her, deeply enthralled by the fire, staring into its depths as though he could not hear Celestina's voice.

Oh, come and stir my cauldron,

And if you do it right,

I'll boil you up some hot strong love

To keep you warm tonight.

"We danced to this when we were eighteen!" said Mrs. Weasley, wiping her eyes on her knitting. "Do you remember, Arthur?"

"Mphf?" said Mr. Weasley, whose head had been nodding over the Satsuma he was peeling. "Oh yes ... marvelous tune . . ."

With an effort, he sat up a little straighter and looked around at Harry, who was sitting next to him.

"Sorry about this," he said, jerking his head toward the wireless as Celestina broke into the chorus. "Be over soon."

"No problem," said Harry, grinning. "Has it been busy at the Ministry?"

"Very," said Mr. Weasley. "I wouldn't mind if we were getting anywhere, but of the three arrests we've made in the last couple of months, I doubt that one of them is a genuine Death Eater — only don't repeat that, Harry," he added quickly, looking much more awake all of a sudden.

"They're not still holding Stan Shunpike, are they?" asked Harry.

"I'm afraid so," said Mr. Weasley. "I know Dumbledore's tried appealing directly to Scrimgeour about Stan. ... I mean, anybody who has actually interviewed him agrees that he's about as much a Death Eater as my dinner . . . but the top levels want to look as though they're making some progress, and 'three arrests' sounds better than 'three mistaken arrests and releases'. . . but again, this is all top secret. . . ."

"I won't say anything," said Harry. He hesitated for a moment, wondering how best to embark on what he wanted to say; as he marshaled his thoughts, Celestina Warbeck began a ballad called "You Charmed the Heart Right Out of Me."

"Mr. Weasley, you know what I told you at the station when we were setting off for school?"

"I checked, Harry," said Mr. Weasley at once. "I went and searched the Malfoys' house. There was nothing, either broken or whole, that shouldn't have been there."

"Yeah, I know, I saw in the Prophet that you'd looked . . . but this is something different. . . . Well, something more ..."

And he told Mr. Weasley everything he had overheard between Malfoy and Snape, As Harry spoke, he saw Lupin's head turn a little toward him, taking in every word. When he had finished, there was silence, except for Celestina's crooning.

Oh, my poor heart, where has it gone? It's left me for a spell...

"Has it occurred to you, Harry," said Mr. Weasley, "that Snape was simply pretending — ?"

"Pretending to offer help, so that he could find out what Malfoy's up to?" said Harry quickly. "Yeah, I thought you'd say that. But how do we know?"

"It isn't our business to know," said Lupin unexpectedly. He had turned his back on the fire now and faced Harry across Mr. Weasley. Juliunna twitched in her sleep, but didn't stir.

"It's Dumbledore's business. Dumbledore trusts Severus, and that ought to be good enough for all of us."

"But," said Harry, "just say — just say Dumbledore's wrong about Snape —"

"People have said it, many times. It comes down to whether or not you trust Dumbledore's judgment. I do; therefore, I trust Severus."

"But Dumbledore can make mistakes," argued Harry. "He says it himself. And you" — he looked Lupin straight in the eye — "do you honestly like Snape?"

"I neither like nor dislike Severus," said Lupin. "No, Harry, I am speaking the truth," he added, as Harry pulled a skeptical expression. "We shall never be bosom friends, perhaps; after all that happened between James and Sirius and Severus, there is too much bitterness there. But I do not forget that during the year I taught at Hogwarts, Severus made the Wolfsbane Potion for me every month, made it perfectly, so that I did not have to suffer as I usually do at the full moon."

"But he 'accidentally' let it slip that you're a werewolf, so you had to leave!" said Harry angrily.

Lupin shrugged. "The news would have leaked out anyway. We both know he wanted my job, but he could have wreaked much worse damage on me by tampering with the potion. He kept me healthy. I must be grateful."

"Maybe he didn't dare mess with the potion with Dumbledore watching him!" said Harry.

"You are determined to hate him, Harry," said Lupin with a faint smile. "And I understand; with James as your father, with Sirius as your godfather, you have inherited an old prejudice. By all means tell Dumbledore what you have told Arthur and me, but do not expect him to share your view of the matter; do not even expect him to be surprised by what you tell him. It might have been on Dumbledore's orders that Severus questioned Draco." ;

. . . and now you've torn it quite apart I'll thank you to give back my heart!

Celestina ended her song on a very long, high-pitched note and loud applause issued out of the wireless, which Mrs. Weasley joined in with enthusiastically.

"Eez eet over?" said Fleur loudly. "Thank goodness, what an 'orrible —"

"Shall we have a nightcap, then?" asked Mr. Weasley loudly, leaping to his feet. "Who wants eggnog?"

"What have you been up to lately?" Harry asked Lupin, as Mr. Weasley bustled off to fetch the eggnog, and everybody else stretched and broke into conversation.

"Oh, I've been underground," said Lupin. "Almost literally. That's why I haven't been able to write, Harry; sending letters to you would have been something of a giveaway."

"What do you mean?" '

"I've been living among my fellows, my equals," said Lupin. "Werewolves," he added, at Harry's look of incomprehension. "Nearly all of them are on Voldemort's side. Dumbledore wanted a spy and here I was . . . ready-made."

He sounded a little bitter, and perhaps realized it, for he smiled more warmly as he went on, "I am not complaining; it is necessary work and who can do it better than I? However, it has been difficult gaining their trust. I bear the unmistakable signs of having tried to live among wizards, you see, whereas they have shunned normal society and live on the margins, stealing — and sometimes killing — to eat."

"How come they like Voldemort?"

"They think that, under his rule, they will have a better life," said Lupin. "And it is hard to argue with Greyback out there. . . ."

"Who's Greyback?"

"You haven't heard of him?" Lupin's hands closed convulsively in his lap. "Fenir Greyback is, perhaps, the most savage werewolf alive today. He regards it as his mission in life to bite and to contaminate 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, knowing 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 asking 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 recognition.

"There are no Wizarding princes," said Lupin, now smiling. "Is this a title you re thinking of adopting? I should have thought being '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 Pensive, he used it on Snape."

He tried to sound casual, as though this was a throwaway comment of no real importance, but he was not sure he had achieved the right effect; Lupin's 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. Mrs. Weasley pointed her wand at Juliunna and just like during the summer, she was slowly levitated into the air as Mrs. Weasley moved up the stairs. Harry and Ron climbed all the way up to Ron's attic bedroom, where a camp bed had been added for Harry.