This epic fantasy is bestselling author Amie Kaufman's solo YA debut and stunning opener to a duology 

Amie Kaufman is the New York Times and internationally bestselling co-author of the Illuminae Files, the Aurora Cycle, the Starbound Trilogy, and the Unearthed and Other Side of the Sky duologies. Her award-winning work has been translated into nearly thirty languages. She lives by the sea in Melbourne with her family and an extremely large personal library. You can visit Amie at amiekaufman.com to subscribe to her newsletter.