In the heart of Heaven, a cataclysmic chasm erupts, unleashing an army of grotesque demons unlike any seen before. These monstrous parodies of angels, led by the incomprehensible entity known as the Unnamed One, lay waste to the divine realm, overwhelming even the archangels. As Heaven crumbles, a small band of surviving angels, led by Uriel and Zadkiel, make a desperate escape through a hidden gate to the mortal realm. They arrive on Earth, bearing the heavy burden of their fallen home and the knowledge of the Unnamed One's impending reign of terror. Now exiles in a foreign land, these diminished angels must find a way to survive, warn humanity, and perhaps, against all odds, find a way to fight back against the ultimate evil that threatens to consume all of creation.

Anya's grandfather, a renowned explorer, dies under mysterious circumstances, leaving her with a cryptic map to El Dorado. Drawn by an irresistible force, Anya ventures into the heart of the Amazon, where she discovers that the legend of El Dorado is a terrifying lie. The city is a living nightmare, and its secrets threaten to consume her sanity and destroy everything she holds dear.