Book 24 of the Lucas Davenport series....
I won't mention names but there are some series I just stopped reading because the author was churning out the same thing, over and over. Then there are series that I dread will end. Sandford's books are the ones I don't want to ever stop because even though we have had the same characters for 24 books now, it's not old. New people are introduced into each book, make you like them and they go away only to pop up in another book or series.
Davenport is in charge again with the usual round of characters in the background: Flowers, Del, etc. In Field of Prey, we meet Catrin Mattsson, a detective who is part of the investigation for the Black Hole Killer. Multiple skulls and body pieces are found in a cistern out in the middle of nowhere, all pointing to a serial killer, spanning over a decade of killings. The case is lukewarm turning cold for a bit, as per usual, then speeds up into a fairly horrifying conclusion.
I did yell at Davenport once when he got the name of the killer, in a batch of 3 possible names, and only investigated two... obviously not the killer. D'oh! There were same strange twists and turns in this one and one complete WTF moment where I had to go back and re-read some sections (applauding Sandford for that one) and still never picked up on that plot twist!
My only complaint isn't really a complaint. I get that this is part of the story of the sexual deviancy of the killer bothered me. I KNOW there are people like this IRL but, towards the end, it was rough to read.