“Making a poltergeist can be a simple recipe: allow a girl to have her first menstrual period, tell her she is a naughty girl for thinking dirty thoughts, punish her, bore her, disenfranchise her from her life, and wait. It is not a universal outcome. More than likely, you will summon nothing more than a moody teenager who slams her bedroom door and wishes aloud she had never been born. In exceptional cases, the dishes will fly off the shelves.”