Have I said how much I love this series? Well, I love it. A lot. I love how Briggs makes Mercy's reaction to what happened at the end of the third book real. She's vulnerable and messed up but she is still Mercy. She is going to get the job done even if it kills her. I really liked this book. I was nervous that after how good the last one was this one would not be up to snuff. I'm so glad that it surpassed my expectations.