I have to admit that this one took me a little longer to get completely swept away. This does not mean that this book was in any way inferior to the first. Actually, I think the problem was that I had an idea of where I thought the characters were going and it didn't quite jibe with Veronica Roth. :-P That being said, by the midpoint in the book I was hooked again. This book was darker than the first (believe it or not) because the fight is not just about factions but about secrets. Those in the highest level of government know a secret and Abnegation was prepared to tell the entire population...until Erudite decided that it was too dangerous. That's what prompted the fighting (and Jeanine Matthews wanting to wield control over everyone). The Divergent, in particular, are impacted by this information but we won't know exactly to what extent until the next book in the series. Here we go again!