I have to admit to not really loving this series in the beginning. It has definitely gotten better over the 4 books in the series. I have enjoyed seeing Piper grow as both a person and a detective. She still has some TSTL moments, but they make the story that much more entertaining. One of the things that I loved about this book was how Piper is still feeling the after effects of the previous case. Particularly in the claustrophobia and insomnia. For me it made Piper more realistic since I think a lot of people would have some PTSD after being poisoned and almost dying. I feel like in a lot of mystery series, once the case is solved the main character moves on and it's almost like the danger in the book before never happened.
My only two complaints were the pop culture references. Those drive me crazy! Having real actor names thrown into a fiction book really throw me off. The part about Piper acting in a movie with Channing Tatum had me rolling my eyes. Not a big deal, just a personal preference. I also want more Jack! This relationship needs to move forward. I look forward to the next book, hopefully with more Jack and Piper together!