This is a tough one! After consultation with colleagues--we wonder if this might be one of the Allie Beckstrom novels by Devon Monk? http://www.devonmonk.com/books/allie-beckstrom/. Omaha Public Library has these: https://omaha.bibliocommons.com/search?utf8=%E2%9C%93&t=smart&search_category=keyword&q=Allie+Beckstrom&commit=Search
Let us know what you think!