Even 9 books in, Patricia Briggs never fails to disappoint with the Mercy Thompson series. I would say very few other long running series that I've read has been able to maintain consistent quality while still continuing to explore new things. 
 This was a fast read but if there's one thing I'm very glad to see, it's that we will hopefully no longer have to see the pack disrespecting Mercy and Adam's ex-wife walking all over her. I know it's a necessary point of conflict in the series but I always felt that it was overdone and honestly never bought the whole "Mercy is a stronger character BECAUSE she won't let Adam defend her" message.