Seth Dickinson

"Baru Cormorant believes any price is worth paying to liberate her people--even her soul. When the Empire of Masks conquers her island home, overwrites her culture, criminalizes her customs, and murders one of her fathers, Baru vows to swallow her hate, join the Empire's civil service, and claw her way high enough to set her people free. Sent as an Imperial agent to distant Aurdwynn, another conquered country, Baru discovers it's on the brink of rebellion....