I plan to do a full review of this later - these are just my quick thoughts. 
 I loved it!! Ilona Andrews just continues to blow me away with their stories. It's such a deep, vivid, layered world with complex characters around every corner. 
 I liked the reality of Kate starting her own business. Of having partners/employees. The difficulties and issues that come with that and how she handled them. 
 The growth and development in Kate and Curran's relationship is fantastic. This isn't just an HEA, ride off into the sunset; this is an HEA in progress (to steal Ilona's words). There are hurdles still to be overcome, trust still to be issues, secrets still to be discussed, and compromises to be made. I'm confident in their HEA, I know they'll never falter, never give up on one another and never let each other go...but it still takes effort for both of them at times. I like that we see that. Also the issues with Kate being the other half of the Alpha pair. There's some politics that take place in this book, and all I can say is I was cheering for Kate when she was done. Loved the way she handled a very tense situation. 
 The action of the storyline is intense. What starts as a job quickly becomes possibly the biggest threat that Kate has faced yet. 
 There are some mind-blowing bits of Kate's history revealed in this book. I'm still trying to wrap my head around them, and decide what to take at face value and what to dig a little deeper on. 
 In addition to this, there's the trademark humor, smart-assedness and absolutely heart-wrenching moments. I laughed out loud more times than I can count, and teared up just as often. 
 The last few chapters of the book are a wild roller-coaster of a ride, that I'm going to be reading again right now for what I'm sure I missed. 
 All in all, great book, great story. Must read and I highly recommend this series.