The Heir of Fire, a novel written by Sarah J. Maas revolves around the character Celaena Saedothien, A half Fae and the ruler of an old empire. In the first novel, it describes how Calaena made friend with Chaol Westfall, the Captain of Adarlan's Military, Dorian Havilland, the Crown prince to the crown of Adarlan, and Nehemia Ytger, the crown princess of Eyllwe. It also describes the hardships that she had to face to become Adarlan's assassin, the personal assassin of the king of Adarlan. In the second novel, Celaena is adjusting to her new job as the assassin of the man that has killed her kingdom and finds out new secrets of people she thought she knew. And finally the third novel, the Heir of Fire, the main focus is on Celaena's journey to unlock and master her Fae form so she can save her old kingdom. As she is treading into new water she finds more secrets and complications that she must face in order to reach her first goal that she was aiming for since the first book, to obtain her freedom and be free from the corrupted rule of the tyrant of a king. But to do this she must learn from a Fae warrior and pass his tests so she can see her aunt, the current queen of Fae.