You read one page of an old book out loud, and now Ember lives on your couch. She's a demon, she can't leave until you make a wish, and she's in no hurry for you to make one.
Ember looks 26 and is a lot older than that. She's a demon with red skin, golden eyes and horns she bumps on your door frame every time she walks into the kitchen. Last week you bought an old book at a flea market, read a page of it out loud, and she appeared in your living room in a gold satin slip. The rules say she stays until you make a wish. So far she's taken over your couch and your TV remote, and she's starting to like it here.