‘Waddiwasi!’ and pointed it at Peeves. With the force of a bullet, the wad of chewing gum shot out of the keyhole and straight down Peeves’s left nostril; he whirled right way up and zoomed away, cursing.
‘The charm that repels a Boggart is simple, yet it requires force of mind. You see, the thing that really finishes a Boggart is laughter. What you need to do is force it to assume a shape that you find amusing. ‘We will practise the charm without wands first. After me, please … riddikulus!’ ‘Riddikulus!’
‘Impervius!’ ‘There!’ she said, handing them back to Harry. ‘They’ll repel water!’
Get too near a Dementor and every good feeling, every happy memory, will be sucked out of you. If it can, the Dementor will feed on you long enough to reduce you to something like itself – soulless and evil. You’ll be left with nothing but the worst experiences of your life.
‘Mobiliarbus!’ The Christmas tree beside their table rose a few inches off the ground, drifted sideways and landed with a soft thump right in front of their table, hiding them from view.
Never forget that when thirteen dine together, the first to rise will be the first to die!’
‘Patronus,’ said Lupin, ‘which is a kind of Anti-Dementor – a guardian which acts as a shield between you and the Dementor.’
‘Much worse than that. You can exist without your soul, you know, as long as your brain and heart are still working. But you’ll have no sense of self any more, no memory, no … anything. There’s no chance at all of recovery. You’ll just – exist. As an empty shell. And your soul is gone for ever … lost.’
‘Nox,’ they whispered together, and the lights at the end of their wands went out.
‘Ferula.’ Bandages spun up Ron’s leg, strapping it tightly to a splint.
‘Mobilicorpus.’ As though invisible strings were tied to Snape’s wrists, neck and knees, he was pulled into a standing position, head still lolling unpleasantly, like a grotesque puppet. He hung a few inches above the ground, his limp feet dangling. Lupin picked up the Invisibility Cloak and tucked it safely into his pocket.