Dream Chaser - Bailey Spade Series, #3

The god of nightmares is real? How fun. A mystery dreamwalker is trying to turn me homicidally insane? Business as usual. But when a legendary seer gets involved, we end up on a world populated by necromancers. Oops. I'll have to put on my big dreamwalker panties and learn to forgive Valerian's betrayal before we're all killed by Icelus. or zombies. or a deadly virus.