Shadow Protocol

The monsters didn't start coming until after the city built a unit to fight them.

Detective Zara Osei has been with the Fallen Response Unit for two years. She's good at her job—methodical, skeptical, and very good at not dying. When a series of deaths starts looking less like accidents and more like something feeding, she expects a standard FRU investigation: identify the threat, contain it, close the case.

She doesn't expect the lead witness to be a demon with impeccable manners and a suspicious amount of knowledge about the victims.

Caine has existed at the margins of human society for longer than the city has had streets. He doesn't involve himself in mortal problems. He has rules about this. But when the thing hunting in his territory starts breaking patterns that shouldn't exist, he finds himself reluctantly, inconveniently useful to a detective who doesn't trust him and probably shouldn't.

The bodies have something in common. Finding it might be the only thing that keeps Zara alive. It might also be the thing that changes everything she thinks she knows about the FRU—and why it was really built.