** spoiler alert ** 
 I'm not entirely sure how I feel about this book. It was well-written, nicely paced, and had some good character development, but for me it just fell short. I felt like the ending could have been a lot more dramatic since the build up took so long. I mean, Rhine was hoping and hoping to escape for more than 10 months, fearful of Linden's father and his control, wanting to go back to her twin brother Rowan who has been alone all this time, so you'd figure she would take escaping a little more seriously, and I don't know, find out how to leave through the gate once she reached it? 
 Some things that took away from this book for me: 1) The 'evil' character of Vaughn could have been given a little more to work with to prove just how evil he could really be. To me he just seemed like a master manipulator driven by the fear of losing his kid. 2) The fact that Linden slept with Cecily while she was so young felt so, so strange to me. Especially because not only was she young in age, but also very young mentally and overall very immature. I just didn't get it. 3) I felt like we should have gotten to know Rowan a lot more. He means a lot to Rhine, but I never found myself caring for him, and it's because I didn't know anything about him except for him being very protective of his sister. 
 Usually when I finish a book I like to sigh in satisfaction or think happily about the characters and the plot, but with this book I was just... not interested? For some reason I found myself drawn to Linden's character and wanted him to escape and find freedom more than Rhine. And I shouldn't really have been thinking like that about her, since she's the main character, but towards the end of the book I felt like Rhine could have stayed in that mansion the rest of her life and I wouldn't have cared, which is kind of awful. 
 Maybe the next book will be better. I'm hoping to meet Rowan, get to know Gabriel a little more, and see if a cure is discovered.