Night Shift

This was pretty decent read with the lead character being extremely interesting, but the explanation of the world's rules was lacking which is why I took the rating down a bit. We have a tough chick heorin with a damaged personality who must protect her city from misbehaving hellbreed. Enter the first question, what exactly is a hellbreed? From what I gleaned they are creatures from hell and vary in power levels, but how do they enter the world? Why are they allowed cohabitation with humanity unless they misbehave? Then we learn that Jill has a special eye and powers. Granted we learn how she comes to possess said powers, yet we don't learn much about the limitations she has.  I do like the fine line Jill must cross to remain in control of her powers and Perry. However, Saintcrow glosses over how Jill attained her special eye. She hints that Jill received it from hell, but I want to know how. Saintcrow also glosses over what is called a between world. What is it? Jill seems to see the past within it but then again I have no idea, maybe it's hidden truths, there just isn't enough information.  I also wanted to know more about the etheric, what exactly it is other than some sort of magic.  Is it separate from Jill's enhanced abilities or does she gain control of the etheric because of her enchancments? I love the dark underworld we are exposed to in this book and I am eager to see how Jill evolves, I'm just hoping more explanations pop up or I will continue to give these books low stars.