When the tears of Eve have turned to blood and her sins have turned to flesh, the key will fall...Their destiny is written by chaos and betrayal...by this promise, be compelled. It's been five weeks since the demons convinced Quinn to throw herself into the raging river, since Aaron sacrificed himself to save her, since his body vanished without a trace. When a mysterious box materializes on the very spot Aaron disappeared, Quinn finds she's at the center of an ancient prophecy of revenge and sacrifice that takes her to the depths of the underworld. There, she must stop the release of a demon horde trapped inside the box. If she succeeds, she will save the human realm and free Aaron from an eternity in torment. All it will cost is her blood.