I enjoyed this book but the series is beginning to feel repetitive. Big Bad comes to Nightside, John, Suzy and 1 or 2 other people take it on, people die. It's not that there's a total lack of forward momentum, there are changes in the Nightside. In this book we meet the new authorities, for example. But it still feels like the more things change the more they stay the same.
I did notice a few crossovers with the Shaman Bond series.