Aelin Galathynius is the main character in the Throne of Glass series by Sarah J. Maas. She is the rightful heir to the throne of Terrasen, a kingdom in the fictional world of Erilea. Aelin is known for her exceptional skills as an assassin and her powerful fire magic, which she uses to fight against various enemies throughout the series. As the story progresses, Aelin evolves from a rebellious assassin into a strong leader. She faces numerous challenges, including betrayal and loss, while striving to reclaim her kingdom and protect her loved ones. Aelin's journey is marked by her determination, resilience, and the bonds she forms with other characters, such as Rowan Whitethorn and Dorian Havilliard.