Aaron's senior year has been anything but typical. Half-angel and half-human, he has been charged to reunite the Fallen with Heaven. But the leader of the Dark Powers is determined to destroy Aaron - and all hope of angelic reconciliation. Struggling to harness the incredible force within him, Aaron trains for the ultimate battle. With the Dark Powers building in strength and numbers, their clash may come sooner than he expects. And everyone who's ever mattered to Aaron is now in grave danger.