Fred and George's room

This room is on the second floor (HBP5). The twins do magical experiments in their room. Mysterious explosions and noises emanate from it. They've invented all sorts of interesting (and somewhat dangerous) magical items. When cleaning their room, their mother discovered a stack of order forms for them to sell their fake wands and magical candy to kids at school. Molly burned the forms. Now that the twins sleep in the flat above their shop, the room serves as something of a store room (HBP5).