Predestined (Preordained #2)

Kort and Seth reappear in Faith's life, bringing news of a new threat against humanity: an ex-archangel hit squad is scrambling to break through to this world.

Faith has to put her torn affection for the two angelic brothers aside, and Kort and Seth have to learn to get along, because the leader of the infamous IRIN has his sight set on Faith. And he’ll hunt her down until he can take her power over mankind, or her virtue, whichever comes first.