Mercy Thompson is one of my favorite series. I look forward to each new release so I wasn't surprised when I flashed through Night Broken in 1 day. 
 Things have been going pretty good for Mercy and Co. it's been a couple of months since Frost Burned so we already know that the calm will soon break and that comes in the form of Adam's ex-wife Christy calling in need of help. Christy is having problems with a stalker ex who she suspects may have gone so far as to even murder a man she was dating. When he physically attacks Christy she feels going back to Adam and the Pack is her safest option. No one will deny her their help, but it is also understood that Christy likes to stir the pot and will take every opportunity she can to come between Adam and Mercy. Add to all of this a late night visit by a Gray Lord and things are getting back to normal for our coyote walker. 
 I really liked the fact that Patricia Briggs kept the storyline very tight and controled. In previous books there have been times where there's too much going on and things tend to get a little confusing, but here Ms. Briggs keeps everything tied together nicely. The reader knows where every piece eventually fits and there's a reason for every happening. 
 I liked the addition of Christy as a foil between Adam and Mercy. I was never in any way worried about their relationship, but Christy was this big part of Adam's life and it's been mentioned in previous books that he was broken down after she left so it's interesting to "meet" the woman behind all the emotional chaos. I don't think she's a character that I want around permanently. I think the tension between her and Mercy could be played out rather quickly if this becomes the case, but for the purposes of the story I think her appearance was something that finally had to happen. 
 By extension, Christy's stalker proves to be a very menacing and scary bad guy. In previous books, when a different supernatural has been introduced (besides the werewolves, vamps, and Fae intrinsic to Mercy's world) it hasn't always worked out the best. The mythology behind those creatures can get muffled, but again, here Patricia Briggs does a wonderful job of introducing this new supernatural element and the problem of figuring out how to win the battle. 
 I really enjoyed Night Broken. I think I say this with every new Mercy book, but this one was really good and felt like reading the beginning of the series again. Now I'm just sad that I read so fast and now I'm finished. Until next year!