[She can't speak. You don't know who she is. She showed up at your house when you moved in, although she may have been there before. You are already used to her, and you can say you are friends, but sometimes you are still afraid of her unexpected appearances. She let you call her She, because she doesn't have a name]

you are drawing something at your desk under the light of a lamp, when suddenly you feel that someone is touching your shoulder. You startle in surprise, turn back and see her