I love this series, but I really didn't love this book.
Telling it from Mike's POV and "hearing" his inner thoughts/feelings on Coop (sorry, she's "Coop", she's not "Alex") was good, but I felt it got a little too touchy feely for the character of Mike Chapman. I did like this story as a lens into Chapman's history - his father's interactions with the Westies would be perfect for a cop at that time. The "character" of Jeoffrey's Hook was amazing - I wish the same level of detail had been paid to Liberty Island and its history.
I felt short changed on the initial case though and curious whether he, the Reverend or Raymond Tanner will be revisited in a future story.