A Necromancer's Maddess: Book 2 of The Unholy Trinity

Rebecca isn't your typical eighteen year old; she's a necromancer trained by her father. And all she has ever know is loneliness, since her father lives as a shut-in with her now-deceased step mother.

And when her father moves to resurrect his late wife, Rebecca is left in a difficult, impossible situation... Until Katie and Jacob arrive, searching for Katie's mother.