2.5 stars. This book was kind of a letdown. I really liked the first book in the series. In this book, I found Vaughn vaguely irritating. I don't know why, but he didn't do anything for me. Even the relationship between him and Faith was meh.
There was a lot of setup in this book for future conflict in the Psy world, and I found myself skimming it. Yes, emotions are good, Silence is bad, I figured that out last book.
Overall, I'll probably give the series one more book to see if it can capture me again, because I do find the world interesting.