BOOM.
The fireplace exploded outwards, and Harry ducked behind a couch.
Ash and splinters of wood blew everywhere. There was a whole myriade of yelps and screeches, then everything settled down.
Harry peeked over the couch, and saw the Weasley family sprawled in the now ashy living room, all looking distinctly ruffled and some were groaning. Meinwhile a much taller-looking Mayumi, the chaos initiator herself, stood in the middle of the mess, looking rather proud.
"Hello!" She greeted in a pleasant voice, like she did not just explode out of the fireplace. "Nice weather, no?"
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