This is a well written sequel to "Relentless". Plus, Bethany House contracted Robin Parrish for all three in this series. Very impressive!
As I read this, I kept thinking about USA channel's "4400". I know Robin thought of this first, before "4400" made the airwaves because of what I read on his online magazine Infuze.
Anyoot. I strongly suggest that if you like that kind of eery story, packed with tension and action, click on the title and purchase this book.