I had a very hard time deciding how much I liked this book. I love the concept, and I understand that the book is supposed to leave you still asking questions and trying to understand. But overall the characters had my heart from the very beginning. I absolutely love who they are and what they represent, what they believe in. Their personalities are so well defined and I adore Thomas. I'll most likely continue reading the series to find out what happens next. Definitely have questions that I NEED answered!