You'll Never Look At Ye Olden Ways The Same Again. This was my first book from Spangler, and is the 4th book in this particular series. It picks up seemingly some period of time after the events of Book 3, and immediately spoils some of the ending there. So if you have particular cares about such... start at Book 1 here and work your way here. As a police procedural / murder mystery of the book type series, this one actually works quite well and features a technique (used in a variety of ways) that will both creep you out and cause you to think twice about certain olden ways of doing certain things. What were y'all *really* up to, humanity of old???? Several different deaths drive the action here, and there is indeed quite a bit of action along with the mystery, including a pulse pounding race to... well, not quite the finale, but the effective end (+ some exposition) of that particular thread. And then another bit of action to resolve the other main thread before ending on a series explosion big enough that you're going to want the next book in your hands immediately. Very much recommended.