The Darkest Gate (The Descent Series, #2)

When Elise Kavanagh retired from demon hunting, she swore it would be permanent. But an attack from a powerful necromancer forced her back into the business, and now she's trying to balance her normal boyfriend and normal job with everything supernatural.

Mr. Black is a demon hunter gone rogue. He's enslaving angels and stealing ethereal artifacts in pursuit of forbidden immortality, and an old grudge drives him to make his final stand in Elise's territory. Destroying her life and killing ...