He indicated the cauldron nearest the Slytherin table. Harry raised himself slighty in his seat and saw what looked like plain water boiling away inside it.
Hermione’s well-practiced hand hit the air before anybody else’s; Slughorn pointed at her.
“It’s Veritaserum, a colorless, odorless potion thar forces the drinker to tell the truth,” said Hermione.
“Very good, very good!” said Slughorn happily. “Now,” he continued, pointing at the cauldron nearest the Ravenclaw table, “this one here is pretty well known… Featured in a few Ministry leaflets lately too… Who can—?”
Hermione’s hand was fastest once more.
“It’s Polyjuice Potion, sir,” she said.
Harry too had recognized the slow-bubbling, mudlike substance the second cauldron, but did not resent Hermione getting the credit for answering the question; she, after all, was the one who had succeeded in making it, back in their second year. “Excellent, excellent! Now, this one here… yes, my dear?” said Slughorn, now looking slightly bemused, as Hermione’s hand punched the air again.
“It’s Amortentia!”
“It is indeed. It seems almost foolish to ask,” said Slughorn, who was looking mightily impressed, “but I assume you know what it does?”
“It’s the most powerful love porion in the world!” said Hermione.
“Quite right! You recognized it, I suppose, by its distinctive mother-of-pearl sheen?”
“And the steam rising in characteristic spirals,” said Hermione enthusiastically, “and it’s supposed to smell differently to each of according to what attracts us, and I can smell freshly mown grass and new parchment and—”
But she turned slightly pink and did not complete the sentence.
“May I ask your name, my dear?” said Slughorn, ignoring Hermione’s embarrassment.
“Hermione Granger, sir.”
“Granger? Granger? Can you possibly be related to Hector Dagworth-Granger, who founded the Most Extraordinary Society of Potioneers?”
“No. I don’t think so, sir. I’m Muggle-born, you see.”
Harry saw Malfoy lean close to Nott and whisper something; both of them sniggered, but Slughorn showed no dismay; on the contrary, he beamed and looked from Hermione to Harry, who was sitting next to her.
“Oho! ‘One of my best friends is Muggle-born, and she’s the best in our year!’ I’m assuming this is the very friend of whom you spoke, Harry?”
“Yes, sir,” said Harry.
“Well, well, take twenty well-earned points for Gryffindor, Miss Granger,” said Slughorn genially.
Malfoy looked rather as he had done the time Hermione had punched him in the face. Hermione turned to Harry with a radiant expression and whispered, “Did you really tell him I’m the best in the year? Oh, Harry!”
“Well, what’s so impressive about that?” whispered Ron, who for some reason looked annoyed. “You are the best in the year—I’d’ve told him so if he’d asked me!”