I notice that the second book in the series is not much longer, so perhaps this is just the way the industry is trending - instant gratification and short attention spans. As I said, I don't want to join - I prefer my books to have some meat on the bones.
That having been said this book is a good story and an easy read. A longer story would have allowed the author to give a bit more color and flesh to the characters. Perhaps that will happen as the series progresses. I did enjoy the read. It is a simple tale of good v evil and. I like the fact that there was a moral quandary for the protagonist to deal with.
Given the size of this book I can't in all honesty give it any more than three stars, but If you're looking for an action packed, half an afternoon read, then I can definitely recommend it. A few minor typos et al, but all in all a pleasing read.
You can pick this book up at Amazon: http://www.amazon.com/Horizons-World-Order-Rise-Book-ebook/dp/B00YDNDZSY/ref=sr_1_1?s=books&ie=UTF8&qid=1436496121&sr=1-1&keywords=Horizon+Steven+Atwood