Feyre and her friends must stop the evil Hybern king's conquering schemes.Following A Court of Mist and Fury (2016), pale-skinned Feyre has been returned to the Spring Court in the wake of an alliance between Tamlin and Hybern. She deceives them, actually serving as a spy and saboteur for Rhysand and his court. But right before she can sneak back to the Night Court (and her loving, quite physical relationship with Rhys), her careful plan is torpedoed. She and Lucien make a far more dangerous than expected voyage back to Velaris and to Feyre's friends and family, her two sisters suffering from their forcible Fae transformations. To counter Hybern's machinations, Feyre and Rhys must rally their own allies, but the Fae courts are still fractured and reeling from Amarantha's cruelties, and they distrust Night for its reputation. To repair the rifts, the heroes must weigh the pros and cons of dropping their protective masks and showing their true selves, part of the reoccurring themes of self-acceptance and forgiveness. But some alliances are still dangerous—recruiting monsters to fight the monstrous is always a dicey proposition—and double agents abound. Side characters' romantic storylines are interwoven with the strategizing and even the war, pairing the expanded world with extended action sequences and character revelations, and the conclusion's ramifications will be felt in the next installments. Nifty romantic escapism enhanced by expansion of worldbuilding and development of secondary characters. (Fantasy. 14-adult)

It's the end of a trilogy, if not an era: Feyre and Rhysand's story comes to a thunderous close, even as Maas promises more novels from their world. In the Spring Court ere she resides after the events of A Court of Mist and Fury (2016), planted to spy on Tamlin, her former lover yre must hide her true self. War is coming, and the seven faerie courts form tense, uneasy alliances. Feyre longs to return to her true love, Rhysand, and the rest of her family in the Night Court, but as long as Tamlin remains inscrutable, she must keep up a subterfuge that grows more dangerous by the day. Though it would have been better served by another round of copyediting, this fast-paced and explosively action-packed finale will certainly grab audiences. There's more gore than sex this time though there's plenty of both d Maas ventures farther into the world of Prythian than ever before. Die-hard fans will eagerly follow the conclusion to Feyre's story while looking forward to the next crop of stories from Prythian.