Full review on Reader's Dialogue: readersdialogue.blogspot.com/2013/02/insurgent.html

Insurgent picks up right where Divergent leaves off, in the aftermath of the carnage caused by Erudite's scheme. At first, the characters are all trying to recover form the crazy ordeal, but soon they start strategizing as to how they can stop the Erudites and Dauntless traitors.

From then on, it's non-stop action! Running around the entire city, from Abnegation headquarters to Amity's farms, Tris and her friends and allies go step by step to figure out what happened and why, and how they could stop it. The action is all brilliantly described, so that I felt like I was watching it unfold before my eyes. And the balance of introspection and calmer planning times is great also - especially when those quiet moments are burst into with a new surprising twist.

The surprises keep coming thick and fast throughout the whole book. Just when you think you've figured it out, just when Tris thinks she knows whom she can trust, everything is turned on its head in ways you'd never have imagined.

And just wait for the end for those surprises...