Baggott's earlier book, Pure, is one of my favorites. This is the sequel. Because it is a continuation of the story, the merged beings and the bizarre gripping world do not surprise. This lessened the reading experience for me (not really a fault of the book, I know, but that's the way it is). Moreover, the storyline, while very suspenseful, comes to an abrupt and deserting end! Yes, another book is coming but this one derves a better conclusion.