I felt like this book was heading nowhere for a really long time. It was slow-going and almost no action really happened until the 75% mark. I'm fascinated by the setting and always excited to see what new places will be described in the tower, but the characters are all blah. I started to ship some people (not Avery and Atlas because gross), which made it a little more interesting, but still slow. I hope there's a third book because I definitely need more after that ending!