Chaol is the newly appointed Hand to the King of Adarlan and former Captain of the Royal Guard. A severe magical attack has left him paralyzed from the waist down, severely damaging his identity as a soldier. He travels to the Southern Continent seeking an alliance with the Khaganate and physical rehabilitation from the Torre Cesme healers.

Yrene is a gifted magic healer originally from Fenharrow, now studying at the prestigious Torre Cesme in Antica. She holds deep trauma from witnessing Adarlan soldiers murder her mother. This past makes her highly resistant to treating anyone associated with the Adarlan crown, though she takes her healing vows seriously.

Nesryn is the newly appointed Captain of the Guard for Adarlan. She possesses extraordinary archery skills and a quiet, observant nature. Though loyal to the northern continent, she has ancestral ties to Antica and feels an immediate sense of belonging upon returning to her father's homeland.

Urus is the Khagan of the Southern Continent, a powerful ruler who commands immense military forces. He is currently grieving the sudden death of his youngest daughter, Tumelun. He holds absolute power to choose his heir from among his surviving children, fostering intense competition among them.

Sartaq is the second-born son of the Khagan and commander of the rukhin, an elite aerial cavalry of bird-riding warriors. He spends much of his time outdoors and in the skies with his loyal ruk, Kadara. He takes an early interest in Nesryn's heritage and archery skills.

Hafiza is the Healer on High of the Torre Cesme. She serves as the primary instructor for the magic healers of the Southern Continent. She is a serene, wise woman who acts as a maternal figure to the students and guides Yrene toward emotional maturity.

Erawan is an ancient Valg king currently possessing the body of Duke Perrington. He controls vast armies of dark forces and seeks to conquer the known world, serving as the central evil the northern allies must face.

Maeve is a dark, powerful queen with an extensive history shrouded in myth. She commands fierce armadas and surrounds herself with healers to guard against her ancient enemies.

Arghun is the eldest son of the Khagan and the political trade ambassador. Known as the Prince of Spies, he maintains an extensive network of informants across the continents. He is arrogant and prefers to deal in secrets rather than traditional commerce.

Hasar is the third-born child and eldest daughter of the Khagan. She commands the Khaganate's powerful armadas. She has a sharp tongue and a highly territorial nature, often using manipulation and intimidation to assert her dominance at court.

Kashin is the fourth-born child of the Khagan and leader of the foot soldiers and horse-lord cavalry. He is physically confident and somewhat suspicious of foreign infiltration in the palace. He harbors clear romantic feelings for Yrene, which he actively pursues.

Duva is the second-youngest daughter of the Khagan. She is currently six months pregnant and recently married to a prince from a neighboring territory. She maintains a reserved and silent presence around the busy palace.

Tumelun is the youngest child of the Khagan. Her recent, sudden death from a balcony fall has plunged the royal family and the city of Antica into a strict mourning period.

Falkan is a merchant and shapeshifter from the northern continent visiting the Tavan Mountains. Though only twenty-seven, he appears much older due to a dangerous bargain he previously made. He seeks knowledge from the mountain tribes on how to hunt specific deadly creatures to reclaim his stolen years.

Dorian is the newly crowned King of Adarlan. He previously survived possession by a demonic entity, an event that left him fundamentally changed and directly led to Chaol's current physical condition.

Aelin is the powerful heir to the Terrasen throne and a central figure in the northern war. Her exact whereabouts are a subject of intense speculation and political maneuvering among the Khagan's children.

Houlun is the hearth-mother of the Erudin clan of ruk riders. She possesses deep historical knowledge of the mountains and acts as a keeper of ancient lore regarding the Fae and dark creatures.

Borte is the granddaughter of Houlun and the heir to her hearth-mother position. She is a spirited young woman who rides with the rukhin and openly welcomes Nesryn to their mountain home.

Kadara is a massive, highly intelligent ruk (a giant bird of prey) who hatched when Sartaq was a teenager. She serves as his loyal mount and fierce protector in the skies.

Zahida is Nesryn's aunt, residing in the capital city. She provides Nesryn a tangible connection to her southern heritage and offers a safe haven away from palace politics.

Brahim is Nesryn's uncle, living in Antica. He and his wife offer Nesryn vital updates regarding the rest of her family fleeing the war in the north.

Renia is Princess Hasar's romantic partner. She possesses a calm, steady demeanor that acts as a soothing counterbalance to Hasar's volatile temperament.

Nousha is the Head Librarian at the Torre Cesme. She manages the extensive collection of historical texts and provides guidance to the healers searching for ancient lore.

Shen is a palace guard in Antica. Despite missing an arm and using a metal prosthetic, he remains an elite soldier, serving as a physical inspiration to Chaol during his rehabilitation.