Oh it was my pleasure, dears,” said Mrs. Weasley. “I’d invite you for Christmas, but … well, I expect you’re all going to want to stay at Hogwarts, what with … one thing and another.” “Mum!” said Ron irritably. “What d’you three know that we don’t?” “You’ll find out this evening, I expect,” said Mrs. Weasley, smiling. “It’s going to be very exciting — mind you, I’m very glad they’ve changed the rules —” “What rules?” said Harry, Ron, Fred, and George together. “I’m sure Professor Dumbledore will tell you. … Now, behave, won’t you? Won’t you, Fred? And you, George?” The pistons hissed loudly and the train began to move. “Tell us what’s happening at Hogwarts!” Fred bellowed out of the window as Mrs. Weasley, Bill, and Charlie sped away from them. “What rules are they changing?” But Mrs. Weasley only smiled and waved.

J.K. Rowling