“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.

“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 011I 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, Sybi l l, 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 t hink I’ve ever known such a natural at Potions!” said Slughorn, regarding 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 l l — 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 D ark Arts, Charms, Transfiguration , Herbology…”

“All the subjects required, in short, for an Auror ,” said Snap e 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 unex pectedly. 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 c om bination of Dark Magic and gum disease.”

Harry inhaled half his mead up his nose as he started to lau gh. 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 Malf o y 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 boy lurking in an upstairs corridor. He claims to have been invited to your party and to have been delayed in setting out. Did you issue him with an invitation?”

Malfoy pulled himself free of Filchs grip, looking furious. “All right, I wasn’t invited!” he said angrily. “I was trying to gate crash, happy?”

“No, I’m not!” said Filch, a statement at complete odds with the glee on his face. “You’re in trouble, you are! Didn’t the headma ster say that nighttime prowling ‘ s out, unless you’ve got permission, didn’t he, eh?”

“That’s all right, Argus, that’s all right,” said Slughorn, waving it 1.I nd. “It’s Christmas, and it’s not a crime to want to come to a party . Just this once, we’ll forget any punishment; you may stay , Draco.

Fil ich’s expression of outraged disappointment was perfectly pre di c t able; 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 p ossible?… a lit tl afraid? But almost before Harry had registered what he had seen, Filch had turned and shuffled away, muttering under his breath; Malfoy h ad 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 t hanks. “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.

“I’d like a word with you, Draco,” said Snape suddenly.

“Now , Severus,” said Slughorn, hiccuping again, “it’s Christ mas, do n’t be too hard —”

“I am his Head of House, and I shall decide how hard, or otherwise, to be,” said Snape curtly. “Follow me, Draco.”

They left, Snape leading the way, Malfoy looking resentful. Harry stood there for a moment, irresolute, then said, “I’ll be back in a bit, Luna — er — bathroom.”

“All right,” she said cheerfully, and he thought he heard her, as he hurried off into the crowd, resume the subject of the Rotfang Conspiracy with Professor Trelawney, who seemed sincerely in terested. It was easy, once out of the party, to pull his Invisibility Cloak out of his pocket and throw it over himself, for the corridor was quite deserted. What was more difficult was finding Snape and Malfoy. Harry ran down the corridor, the noise of his feet masked by the music and loud talk still issuing from Slughorn’s office behind him. Perhaps Snape had taken Malfoy to his office in the dungeons… or perhaps he was escorting him back to the Slyt herin common room… Harry pressed his ear against door after door as he dashed down the corridor until, with a great jolt of excitement, he crouched down to the keyhole of the last classroom in the corridor and heard voices.

“… cannot afford mistakes, Draco, because if you are expelled —”

“I didn’t have anything to do with it, all right?”

“I hope you are telling the truth, because it was both clumsy a nd foolish. Already you are suspected of having a hand in it.”

“Who suspects me?” said Malfoy angrily. “For the last time, I didn’t do it, okay? That Bell girl must ‘ ve had an enemy no on e knows about — don’t look at me like that! I know what you’re doing, I’m not stupid, but it won’t work — I can stop you!”

There was a pause and then Snape said quietly, “Ah… Aunt Bellatrix has been teaching you Occlumency, I see. What thoughts are you trying to conceal from your master, Draco?”

“I’m not trying to conceal anything from him, I just don’t want you butting in !” Harry pressed his ear still more closely against the keyhole… What had happened to make Malfoy speak to Snape like this — Snape, toward whom he had always shown respect, even liking?