I'd actually rate this as 3 1/2 stars, but there's no option for such in Goodreads. I generally enjoy Dean Koontz, and I was really intrigued by the opening section, with amnesiac Frank on the run from a mysterious pursuer with strange powers. 
 However, once the other major characters were introduced, it seemed to take too long before the various elements of the book tied together, and I also found the shifts in tone from one section to another to sometimes be a bit disconcerting. Furthermore, the resolution seemed to me to leave a few more loose ends than is usual for Koontz. 
 With that said, I did find the husband and wife team of Frank & Julie Dakota to be quite likeable. I also thought the portrayal of her Down Syndrome brother Thomas was sensitive and well handled. 
 On the whole this was an interesting novel, just not quite as polished as I usually expect from this author.