The tempestuous third book in the fantasy series from global #1 bestselling author Sarah J. Maas.

Feyre has returned to the Spring Court, determined to gather information on Tamlin's maneuvers and the invading king threatening to bring her land to his knees. But to do so she must play a deadly game of deceit – and one slip may spell doom not only for Feyre, but for her world as well.

As war bears down upon them all, Feyre must decide who to trust among the dazzling and lethal High Lords and hunt for allies in unexpected places. And her heart will face the ultimate test as she and her mate are forced to question whether they can truly trust each other.