A lovely, thoughtful, sad novel about a teenage ghost stuck at her high school, trying to figure out how to change the narrative of her death -- everyone thinks she killed herself, and she's sure her death was accidental, but what can she do as a ghost?  Quite a lot, as it turns out, but not without questions and cost, both of which are handled beautifully.  I love reading a book that I can't see the end of, and this one kept surprising me.