Harry: Hurry up! Hermione: Swish and flick! Ron: Wingardium Leviosa! Cool. The club flew suddenly out of the troll’s hand, rose high, high up into the air, turned slowly over – and dropped, with a sickening crack, on to its owner’s head. The troll swayed on the spot and then fell flat on its face, with a thud that made the whole room tremble. Harry got to his feet. He was shaking and out of breath. Ron was standing there with his wand still raised, staring at what he had done.