#advanced potion-making

"This is your copy of Advanced Potion-Making, is it, Potter?" "Yes," said Harry, still breathing hard. "You're quite sure of that, are you, Potter?" "Yes," said Harry, with a touch of more defiance. "This is the the copy of Advanced Potion-Making that you purchased from Flourish and Blotts?" "Yes," said Harry firmly. "Then why," asked Snape, "does it have the name 'Roonil Wazlib' written inside the front cover?"

Pointing his wand at nothing in particular, he gave it an upward flick and said Levicorpus! inside his head. "Aaaaaaaargh!" There was a flash of light and the room was full of voices: Everyone had woken up as Ron had let out a yell. Harry sent Advanced Potion-Making flying in panic; Ron was dangling upside down in midair as though an invisible hook had hoisted him up by the ankle. "Sorry!" yelled Harry, as Dean and Seamus roared with laughter, and Neville picked himself up from the floor, having fallen out of bed. "Hang on - I'll let you down -" He groped for the potion book and riffled through it in a panic, trying to find the right page; at last he located it and deciphered one cramped word underneath the spell; Praying that this was the counter-jinx, Harry though Liberacorpus! with all his might. There was another flash of light, and Ron fell in a heap onto his mattress. "Sorry," repeated Harry weakly, while Dean and Seamus continued to roar with laughter. "Tomorrow," said Ron in a muffled voice, "I'd rather you set the alarm clock."