This was a great book in my opinion and my favorite so far out of the three books in the series. But I liked all of the books.
I thought that Echo's character here was less annoying than in the last book, and the scene with her father when she was out of the mind control was touching. And heartbreaking. Aand I will admit that the whole time they were brainwashed, I was completely cheering and rooting for them to break out of it.
The first part of this seemed a little slow, but despite that, I still kinda enjoyed reading through it. The ending made up for the boring first parts, but it was frustrating though for me (and strangely touching). This better not be the last book of the series because it's just a frustrating place to end, and I still want to know what's going to happen to them, especially Connor. I can't wait to know what will happen next, and what kinds of characters will be introduced in the next book.