Brandon G. Kinney who wrote this book fail to realized that being a lawyer is not enough. You got to be a historian as well. I found the book slightly interesting but poorly written. I am bit puzzled if this book is suppose to be on the Missouri Mormon War, the infamous "Extermination Order" or a biography on Joseph Smith or the church history of the Latter Day Saints. Maybe it is a combination of all but if so, it doesn't do justice to any of them.
What killed the book is its biases. The author's perception of Joesph Smith is decidedly negative and he is presented that way. The narrative meander a lot on Smith and always in a negative approach. Although the subtitled of this book "Zion and the Missouri Extermination Order of 1836", this book really doesn't examined that order in any depth. There is no lawyer insight into this that you haven't already read in Wikipedia or any other Internet source. That I would considered to be the biggest disappointment.
I believed that too much space has been wasted on Joseph Smith and origins of LDS. Most people who are interested in this subject will already be familiar with Smith - for better or for worst and they don't need a prolonged history lesson on the subject matter that does NOT add to the discussion at hand. I thought the author can write a chapter on the background and go directly into the actual war itself as well as well as doing an in-depth review of that "extermination order". But he did neither.
On the positive, it does present a pretty good introductory view of how this conflict must have looked from the non-Mormon side and how that conflicted with the Mormon's perception. On that score, the book proves to be bit interesting. But in most other elements, the book failed in my opinion. The author attacked Joseph Smith every chance he gets, too many pages devoted to tracing the Mormons from New York to Missouri (there are only 200 pages or so of written text), too much pages devoted inner LDS conflicts that really had nothing to do with the extermination order or the conflict and with great deal of irony, I thought it really wasn't a very detail account of this conflict. When the main theme of the book is weak, rest become immaterial. There are too many filler pages in this book and not enough meat on the main subject matter. If the author did real research, this book probably could be another 200 pages longer!