3.5 stars. Man, I wish GR let us do halves.I liked this book. I read it in one sitting so obviously I was engrossed. I loved the mystery and thought that Libby was a great character. I could totally believe she'd suffered the trauma she had and yet despite her lack of conventional sympathetic qualities, I really liked her and was rooting for her.I also liked that the story did not at all go the way I thought it would. I love authors that are cleverer than me and so far, Gillian Flynn is definitely up there. That said, there was something that kept me from outright loving this book as much as I did Gone Girl by Flynn.Still a very enjoyable read though.