M.Liu books are starting to be very repetitive with the same general main plot.
Photocopy plot: main character with emotional baggage and prior betrayal by someone important, can transform into mythologic being, chased and repeatedly attacked by a panoply of forces, some with competing interests. In charges D&S, attractive character of opposite sex, with similar emotional wounds and background baggage. Meet and find a bond that was meant to be, heals psych issues, occasional characters from prior stories appear as their powers are needed, can beat combined forces. Middle filler of gratuitously violent attacks and injury to innocent bystanders.
This one had less plot development than the rest and, disappointingly, felt like less effort made for the character development which I really enjoyed about her writing style, more depending on the suspension of disbelief to accept what is poured over the reader. The part about the little knife and Soria's arm would have been powerful in a setting of paranormal, but a random uncle who happens to be a serial killer? huh? And, as a physician, it pushed the limits of my belief, sorry, ain't gonna happen, especially not between joints.
The end was flat and overly simplified, imo. I was very disappointed with this book, especially compared to some of the earlier books. Also, please try a new story line, it is starting to feel like another sequel just for the $$$.
If you read this book, get it from the library, so you are not disappointed you dropped $8US like I did. If you are looking at reading a D&S novel, this should not be your first or even second or third, there are a lot of references to the overall series storyline in this book that you won't understand. Tiger Eye and Shadow Touch are earlier books that were great reads.