I had great difficulty with this book though I admit it was my own fault since I've only read the first book in the series (which I loved) and this is #6 so a lot of the back story has been explained which I missed so these parts were confusing. Even so, I felt that this books jumped from one thing to another and added character after character. I just couldn't keep track of who was who and what was what. I did like both Mercy and Riley though I think there dominate BS went on too long. I'll continue the series but it's back to book 2 so I can pick up the action and hopefully understand whats going on.