Throne of Glass follows Celaena Sardothien, an 18-year-old assassin in the Kingdom of Adarlan. After a year of suffering for her crimes in a slave camp called Endovier, she accepts the offer of Crown Prince Dorian Haviliard, the King of Adarlan's son, to compete with other assassins and thieves for a chance to serve as the King's Champion, and eventually gain her freedom after four years in the King's service. This leads her to form unexpected bonds with Chaol, the Captain of the Guard, and Dorian, the Crown Prince of Adarlan. Over time, Celaena is drawn into a conspiracy and a series of battles, leading to discoveries surrounding both the Kingdom and herself.