Stranger at the Hell Gate — Ash Krafton

Jagger Sintallon, a half-demon warrior, has dedicated his existence to fighting demons who enter the world through Hell gates. A loner of conflicting ideals, he offers shelter to a troubled woman but knows he is too rough, too dangerous, and too cocky for her delicate nature.
Dedicated to Divine Will, Sonya Camael, a Seraph, is determined to discover why she is drawn to Jagger's doorstep and the reason behind her mission. She needs the demon's help but fears he may get himself killed before she can figure it out and the world slips into Hell's dominion.
Sonya faces grave danger with evil stalking her every move, and Jagger shouldn't care but realizes he cares more than he'd likely admit. Sonya knows Jagger cannot win this war alone, but will her divine intervention mean his imminent end? Or will just the right combination of Heaven and Hell set the world right once again?