For years now Lee Child has been my favorite author. I looked forward to what Jack Reacher was getting involved in. The Sentinel is, to me, a sad disappointment. I struggled and found myself, for the first time, skipping pages hoping that the story got better. It never did. It's obvious that Lee Child did not write this book with Andrew, Andrew wrote it. Every writer has a style. Andrew was unable to capture Jack Reacher the way that Lee did. I am sorry that Lee Child has decided to retire. I will miss him.