The Evolution of Gabriel Adam — S.L. Duncan

Stuck in the Dark Realm, teen-turned-archangel Gabriel Adam must remember who he was in the world. A familiar face guides him through an apocalyptic landscape, the only way home, but a relentless destructive force hunts them.

Meanwhile, on the Earth Realm, the horrific effects of the converging dimensions consume reality, encouraged by the machinations of the demon Mastema. Facing impossible odds without their two fellow archangels, Micah and Afarôt race to stop an inevitable doom.

In this harrowing conclusion to The Revelation Saga, worlds collide as Gabriel seeks inner strength to conquer the darkness threatening to tear the world -- and his humanity -- apart.