Harry Potter 05 - Harry Potter and the Order of the Phoenix

stared at each other so long that Harry felt his eyes watering. Then Umbridge stood up.
    ‘Very well, Potter, I will take your word for it this time, but be warned: the might of the Ministry stands behind me. All channels of communication in and out of this school are being monitored. A Floo Network Regulator is keeping watch over every fire in Hogwarts – except my own, of course. My Inquisitorial Squad is opening and reading all owl post entering and leaving the castle. And Mr Filch is observing all secret passages in and out of the castle. If I find a shred of evidence …’
    BOOM!
    The very floor of the office shook. Umbridge slipped sideways, clutching her desk for support, and looking shocked.
    ‘What was –?’
    She was gazing towards the door. Harry took the opportunity to empty his almost-full cup of tea into the nearest vase of dried flowers. He could hear people running and screaming several floors below.
    ‘Back to lunch you go, Potter!’ cried Umbridge, raising her wand and dashing out of the office. Harry gave her a few seconds’ start, then hurried after her to see what the source of all the uproar was.
    It was not difficult to find. One floor down, pandemonium reigned. Somebody (and Harry had a very shrewd idea who) had set off what seemed to be an enormous crate of enchanted fireworks.
    Dragons comprised entirely of green and gold sparks were soaring up and down the corridors, emitting loud fiery blasts and bangs as they went; shocking-pink Catherine wheels five feet in diameter were whizzing lethally through the air like so many flying saucers; rockets with long tails of brilliant silver stars were ricocheting off the walls; sparklers were writing swear words in midair of their own accord; firecrackers were exploding like mines everywhere Harry looked, and instead of burning themselves out, fading from sight or fizzling to a halt, these pyrotechnical miracles seemed to be gaining in energy and momentum the longer he watched.
    Filch and Umbridge were standing, apparently transfixed in horror, halfway down the stairs. As Harry watched, one of the larger Catherine wheels seemed to decide that what it needed was more room to manoeuvre; it whirled towards Umbridge and Filch with a sinister ‘ wheeeeeeeeee ’. They both yelled with fright and ducked, and it soared straight out of the window behind them and off across the grounds. Meanwhile, several of the dragons and a large purple bat that was smoking ominously took advantage of the open door at the end of the corridor to escape towards the second floor.
    ‘Hurry, Filch, hurry!’ shrieked Umbridge, ‘they’ll be all over the school unless we do something – Stupefy !’
    A jet of red light shot out of the end of her wand and hit one of the rockets. Instead of freezing in midair, it exploded with such force that it blasted a hole in a painting of a soppy-looking witch in the middle of a meadow; she ran for it just in time, reappearing seconds later squashed into the next painting, where a couple of wizards playing cards stood up hastily to make room for her.
    ‘Don’t Stun them, Filch!’ shouted Umbridge angrily, for all the world as though it had been his incantation.
    ‘Right you are, Headmistress!’ wheezed Filch, who as a Squib could no more have Stunned the fireworks than swallowed them. He dashed to a nearby cupboard, pulled out a broom and began swatting at the fireworks in midair; within seconds the head of the broom was ablaze.
    Harry had seen enough; laughing, he ducked down low, ran to a door he knew was concealed behind a tapestry a little way along the corridor and slipped through it to find Fred and George hiding just behind it, listening to Umbridge and Filch’s yells and quaking with suppressed mirth.
    ‘Impressive,’ Harry said quietly, grinning. ‘Very impressive … you’ll put Dr Filibuster out of business, no problem …’
    ‘Cheers,’ whispered George, wiping tears of laughter from his face. ‘Oh, I hope she tries Vanishing them next … they multiply by ten every time you try.’
    The fireworks continued to burn and to spread all over the school that afternoon. Though they caused plenty of disruption, particularly the firecrackers, the other teachers didn’t seem to mind them very much.
    ‘Dear, dear,’ said Professor McGonagall sardonically, as one of the dragons soared around her classroom, emitting loud bangs and exhaling flame. ‘Miss Brown, would you mind running along to the Headmistress and