This is book seven in the Women of the Otherworld series. These books could stand alone but I recommend reading them in order. Armstrong's web site has them listed.
No Humans Involved features Jaime Vegas. Jaime is trying to break into TV via a gig on a reality show. She's a spiritualist by trade. The difference is she's a real necromancer and can actually see ghosts. In this story she comes up against some formidable practitioners of black magic. She enlists the help of her friends from the Interracial Council to help in the struggle. This is a book you'll find hard to put down. Highly recommended.