For sixty-five years Thuban has kept a secret that fills his heart with joy and heartache. Sharing it would change his life and friendships, but keeping it is becoming harder. Aurora faces a fear that has been in the back of her mind for many years: becoming a ruler. The choice she is offered puts her in a corner and threatens the freedom of her family. As if Aurora and Thuban do not have enough on their minds, they learn the Azyrie and Azacy have attacked a Valkwell city. Aurora must lead the way into Inarge and find a way to stop the Azyrie and Azacy, but nothing is ever straight forward. Faces from their past return, some with a thirst for revenge. With so much on her mind, Aurora must rely on her friends more than ever, but Thuban isn't sure he can be the support Aurora and the others need.