There was silence in which every bubble and gurgle of the surrounding potions seemed magnified tenfold.
“One tiny bottle of Felix Felicis,” said Slughorn, taking a minuscule glass bottle with a cork in it out of his pocket and showing it to them all. “Enough for twelve hours’ luck. From dawn till dusk, you will be lucky in everything you attempt.”
“Now, I must give you warning that Felix Felicis is a banned substance in organized competitions… sporting events, for instance, examinations, or elections. So the winner is to use it on an ordinary day only… and watch how that ordinary day becomes extraordinary!”
“So,” said Slughorn, suddenly brisk, “how are you to win this fabulous prize? Well, by turning to page ten of Advanced Potion-making. We have a little over an hour left to us, which should be time for you to make a decent attempt at the Draught of Living Death. I know it is more complex than anything you have attempted before, and I do not expect a perfect potion from anybody. The person who does best, however, will win little Felix here. Off you go!”
There was a scraping as everyone drew their cauldrons toward them and some loud clunks as people began adding weights to their scales, but nobody spoke. The concentration within the room was almost tangible. Harry saw Malfoy riffling feverishly through his copy of Advanced Potion-Making. It could not have been clearer that Malfoy really wanted that lucky day. Harry bent swiftly over the tattered book Slughorn had lent him.
To his annoyance he saw that the previous owner had scribbled all over the pages, so that the margins were as black as the printed portions. Bending low to decipher the ingredients (even here, the previous owner had made annotations and crossed things out) Harry hurried off toward the store cupboard to find what he needed. As he dashed back to his cauldron, he saw Malfoy cutting up Valerian roots as fast as he could.
Everyone kept glancing around at what the rest of the class was doing; this was both an advantage and a disadvantage of Potions, that it was hard to keep your work private. Within ten minutes, the whole place was full of bluish steam. Hermione, of course, seemed to have progressed furthest. Her potion already resembled the “smooth, blackcurrant-colored liquid” mentioned as the ideal halfway stage.
Having finished chopping his roots, Harry bent low over his book again. It was really very irritating, having to try and decipher the directions under all the stupid scribbles of the previous owner, who for some reason had taken issue with the order to cut up the sopophorous bean and had written in the alternative instruction: