
Heir of Fire follows Celaena Sardothien at her lowest point—adrift in Wendlyn, refusing to kill an innocent prince, and drinking herself numb after Nehemia’s death. The one path forward leads to Maeve, Queen of the Fae, who refuses to give answers about the Wyrdkeys until Celaena proves she can master the power she’s spent her whole life fearing.
Under the merciless training of Rowan Whitethorn—Maeve’s warrior-prince—Celaena is forced to confront trauma, learn to shift, and shape her wildfire magic into something controlled. Meanwhile, in Adarlan, Chaol and Dorian struggle under a tyrant king whose secret power grows darker, while in the mountains and wastes, witches and wyverns prepare to become an aerial army. When enemies from another world finally step into the open, Celaena must decide whether she is merely an assassin… or the heir of Terrasen.