Fallen by Thomas E Sniegoski Books in Order

Nephilim Aaron Corbet reaches the angelic sanctuary of Aerie while protecting his dog and younger foster brother. The residents distrust his prophesied role, and his arrival inadvertently draws Verchiel's pursuing Powers toward the refuge he hoped would keep them safe.

Aaron Corbet flees the Powers with his dog Gabriel and former commander Camael, seeking refuge in a Maine town. His companions' disappearance and a sudden attack expose dangers beneath its welcoming surface and deepen his connection to Heaven's war.

On the eve of his eighteenth birthday, orphan Aaron Corbet experiences violent angelic dreams and develops unusual abilities. Two mysterious strangers reveal his heritage and a destiny connecting mortals with fallen angels, making him a target for supernatural enemies.

Aaron Corbet prepares to confront Verchiel, the leader determined to prevent his fulfillment of an angelic prophecy. Learning to control his powers becomes even more urgent when his enemy introduces a long-lost father who could change everything Aaron believes.

Aaron Corbet leads the Fallen in protecting humanity as the war between Heaven and Hell intensifies. An instrument capable of summoning the End of Days and his troubled inheritance demand new alliances if he hopes to defend civilization.

Aaron and his fellow Nephilim defend humanity as the devil uses Lucifer's body to spread chaos. Rising casualties test Aaron and Vilma's faith, loyalty, and commitment while the conflict between Heaven and Hell becomes increasingly destructive around them.

With humanity cut off from Heaven, Aaron Corbet and the Nephilim face Satan's attempt to establish Hell on Earth. Their final confrontation demands defending civilization and seeking divine favor while the apocalyptic struggle leaves little room for failure.