The ending was creepy. It's a good way to keep us reading, but if you're still reading by book 7 it's unlikely your going to quit reading. I see what the author means by this book being the end of an arc. I expected more politics given the summary of this book including Kate at the Conclave. This ends up being a minor thing, since Kate spends a lot of time stopping a war between the Pack and the People (why do they call themselves that, anyway?). The almost war ends up taking less time than I expected.
We finally meet Roland in this book. I'm not sure if that's going to prove to be a good thing or not. He's different from what I expected, but I'm not sure how much of that was real and how much was staging. Time will tell.