Book 6 of the Tower series. This book is as innovative and heart-pounding as the last. With twists and turns you do not see coming. Overall the series is strengthened in this unputdownable novel. This is one trust will keep you going right to the end. I love the theme of restoring order and how corruption from a third party can destroy the bonds between two allies. It is amazing the way the author is able to show enemies coming together to deal with a larger threat and that they can be so much more together than each individually.