I was freely given this book by the author for an unbiased review.
No spoilers. This is too good for that.

This is story of good vs evil vs right and wrong. If UFO, science, horror, end of the world and what if, are to your enjoyment, you will not be disappointed. Narration between the two characters both telling their own stories was spot on. The author did a great job bringing these two stories together. This was by far, one of the best books I have listened to.
Just get it!