“Aiden is the Bloodhound the Council's most feared assassin, a vampire prince whose soul has been hollowed out by centuries of shadow and state-sanctioned slaughter. Elena is a Seer of the Vance line a woman of the mountain whose silver flame was meant to heal, not to spark a revolution. When their paths collide in the high spires of a corrupt capital, they don't just find love; they ignite a war that spans from the depths of the Sunken Vaults to the spectral currents of the Forbidden Coast. Now, fleeing the ruins of a broken empire, they carry the ultimate secret: Caelum, a child of the Harmony. Born during a solar eclipse, he is the Third Way a hybrid heir with the power to either unite the warring forces of light and dark or become a beacon of chaos that levels the continent. With the mechanical genius of a mad inventor, the iron will of a blacksmith's son, and the cryptic guidance of a five-hundred-year-old Oracle, Aiden and Elena must protect their son from enemies both ancient and new. From the obsidian breach-engines of the Council to the void-stained magic of Lyra, the first fallen Seer, the hunt is on. In a realm where blood defines destiny, can a monster become a father? Can a healer survive the abyss? And when the choice comes to sacrifice half of his soul, will the Child of the Harmony have the strength to forge a new dawn?”