Loyalty, strength, and the title of captain of the royal guard have always been important to Chaol Westfall. But everything changed after the glass castle was destroyed, his people were killed, and the king of Adarlan did not deal him the final blow, but broke his body. The only chance for restoration is the legendary healers of Torre-Casme in Antica - the powerful empire of the southern continent. And with war looming on Dorin and Aelin's home continent, Chaol and Nesryn must convince the rulers of Antica to ally with them. But what they find there will change both of their lives - and will be more important to Erilea than anyone can imagine.