This series just gets more WOW!, more OMG!, and more WTF! as it goes on.
I read books 1-4 one after the other because I was so soaked into the story that I didn't want to leave. This one beat the rest for those HOLY COW moments and I CAN'T BELIEVE THEY DID THAT.
I think I audibly gasped about a dozen times throughout this book and did a very loud OH MY GOD when I was reading this in hospital. But I loved it all the same.