[du-] Dumbledore is in the [4] bathroom of the [-an] pawn shop, 锻 forging a 钅 metal zipper. He gets a piece of scrap 钅 metal and places it on the bathroom floor, then uses his magic to summon a 殳 missile which explodes onto the 钅 metal, forming a zipper. This is an ancient form of 锻 forging passed down through the years.