Queen of Shadows (Throne of Glass #4) by Sarah J. Maas
Summary (from the publisher): No masters. No limits. No regrets. Celaena Sardothien has embraced her identity as Aelin Galathynius, Queen of Terrasen. But before she can reclaim her throne, she must fight. She will fight for her cousin, a warrior prepared to die for her. She will fight for her friend, a young man trapped in an unspeakable prison. And she will fight for her people, enslaved to a brutal king and awaiting their lost queen's triumphant return. Everyone Aelin loves has been taken from her. Everything she holds dear is in danger. But she has the heart of a queen-and that heart beats for vengeance. In this fourth book in the #1 New York Times bestselling Throne of Glass series, no one will escape the queen's wrath. Review: At last, Calaena Sardothien has reclaimed her true identity of Aelin Galanthynish, Queen of Terrasen. But before she can rule as queen, she must fight. Her cousin Aedion is imprisoned and condemned to death by the evil Kind of Adarlan. Likewise, h