The final part of the trilogy, Tris and Tobias’s lives continue to be jumbled as they are selected to leave Chicago and visit the outside world. Once there, they find that their entire world-view is false and they have to decide to live in this reality or face that all they know will be erased. This book is a good conclusion to the trilogy, although the wrap-up chapters take way too long, in my opinion. The book is also written differently than the others — it alternates between Tris and Tobias as first-person POV. It becomes clear why Roth did this as the story unfolds, but I found it a bit distracting.