I liked the scientific elements of this book, it was interesting to learn what they were talking about in regards to global warming, sinkholes and what not. It also showed the Author had put in the time to do his research. It was short but it felt like the right amount of pages, you could tell the first was just an introduction to the rest of the series. Highly interested in carrying on reading. Demon apocalypse seems like an interesting story concept. The story leaves you going oo what going to happen? Do they survive? Do humans survive?
Overal I would highly recommend this book. It short enough to give it a try if you are sitting on the fence. I believe the Author is trying to make it into a movie, believe they are making it a script as we speak.