(my niece who keeps hoping I can become more literate than the average science nerd) made me read this. Occasionally, I suppose, she thinks it would be good to drag me away from so much 19th-century stuff. Fortunately, I could borrow this book from my library in kindle format. So, to make my niece happy, I requested it.
It took me a while to get into this book. I couldn't figure out what was going on. On one level, it was a sort of standard cop-procedure investigation of a murder. But I had no idea where things were happening. Eventually, I figured it all out. Basically, there are two cities that more-or-less co-exist in the same space. But they are separate and people in each city are required to "unsee" people and buildings in the other city. If they don't, "breach" happens and all hell breaks loose. Or something like that.
The problem comes up that a body is found in one of the cities, but it's pretty certain the murder was committed in the other one and the body transported across city lines. Was the body transportation breach? If so, solving the crime gets relatively easy, the enforcers of breach will take care of things. But the enforcers of breach won't act unless there is clear evidence of breach. Or something.
So the book is part weird fantasy, part police procedural, part murder mystery, and so on. Towards the end it got pretty interesting. What happens if you "sort of" see someone, but you can't tell which city he's in? If he's in your city you can see him without worry, but if he's in the other city, you're not allowed to see him. If you do, breach comes down on your head. Life is complicated in many ways, it seems.