"Hiya guys!" Mayumi waved cheerfully, hopping into the common room. Hermione is sitting next to Harry and Ron, who are examining the firebolt. "Oh great, you're all still friends, the Firebolt's still here, and no one is crying!"
"...Why would that happen?"
Mayumi blinks.
"Why did you think I sent you that card?"
While fleeing, Mayumi had to doge a flying book, two mousetraps, and three beanbags.