When the City of Athena is attacked by an enemy long thought gone, an ancient evil awakens. Caera, a warrior-princess, Tristan, a proud Nephilim, and Nathan, a boy with a lost and dangerous power, are forced onto a journey to the north-toward the Dark Mountain and the ruined city of Lysandria. Fanatical zealots dig into forbidden places, and the cursed Nharok rise from their lairs, thirsty for blood. Azrael, once a brother to the Nephilim, now leads an army under a banner of fire. In the shadows, Mordecai reaches out from his prison, twisting hearts and minds to serve him. All races must unite or be destroyed by the coming darkness. Not everyone will survive.
A city under siege, a power long forgotten, and a darkness that refuses to stay buried.