Feyre has returned to the Spring Court to gather information on Tamlin's plotting and the invasive king threatening to bring Prythian to ruin. While navigating a lethal game of deceit where any mistake could be fatal, Feyre must decide whom to trust amongst the High Lords. As a catastrophic war looms, Feyre hunts for allies in surprising places, and alongside her mate, faces tests of trust and love. With mighty armies converging for power, the fate of their world hangs in the balance in this third installment of Sarah J. Maas's best-selling series.