Centuries have passed since Kimba and Osiris were torn apart by darkness—she, transformed by the will of ancient dragons; he, crowned as ruler of the underworld and forced to forget the very love that once saved him. Now, fate and the awakening of old magic have pulled them together again, their bond rekindled. But, as demons run free and dark elementals make the human realm their playground, there's much more to worry about than their hurt feelings. With new revelations, a dangerous promise, and an ancient enemy rising, it will take the dragons, the soul-bonded, the royal elementals, and their allies to stand against their enemies. Some secrets are veiled by smoke. Some destinies are written in flame.