The Yule Brawl

The Fat Lady and her friend Vi were snoozing in the picture over the portrait hole. Harry had to yell "Fairy lights!" before he woke them up, and when he did, they were extremely irritated. He climbed into the common room and found Ron and Hermione having a blazing row. Standing ten feet apart, they were bellowing at each other, each scarlet in the face.
"Well, if you don't like it, you know what the solution is, don't you?" yelled Hermione; her hair was coming down out of its elegant bun now, and her face was screwed up in anger.
"Oh yeah?" Ron yelled back. "What's that?"
"Next time there's a ball, ask me before someone else does, and not as a last resort!"
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Harry Potter and the Goblet of Fire Chapter 23: The Yule Ball