In a land without magic, an assassin is summoned to the castle.

She has no love for the vicious king who rules from his throne of glass, but she has not come to kill him. She has come to win her freedom. If she defeats twenty-three murderers, thieves, and warriors in a competition, she will be released from prison to serve as the King’s Champion.

Her name is Celaena Sardothien. As dark forces gather on the horizon – forces which threaten to destroy her entire world – Celaena must fight to protect everything she holds dear, thrusting her into the epic, heart-stopping fantasy series that turned #1 New York Times bestselling author Sarah J. Maas into a worldwide phenomenon.