After a brilliant and very useful recap of Inside Out, this only got better. It found it's footing immediately and ran like the wind to the closing lines. It was so jam-packed with action, betrayals and trickery I was exhausted just reading it. It wasn't simple either. I'm impressed Snyder could fit so much in (including technical detail) and I could still follow her throughout. Something I couldn't do with the first book. I never knew who to trust. That seems to be a real theme that Snyder just loves to play with. I don't know how Trella managed what with getting injured, drugged or knocked out every five minutes and having to deal with the difficult relationships with her mother and her boyfriend. Time was a real factor, she never had enough of it but she somehow triumphed more often than not.There was very little skimming this time around. Snyder was economical with words yet she still managed to fill many, many pages, more than I expected and I never got bored. Unusual for me with YA. The only real downside was no sexually explicit content even when it would've made sense with what should've been a very steamy shower scene, dammit! F-R-U-S-T-R-A-T-I-N-G. Talking of frustration, Trella's stubborn reluctance in taking on the responsibility of leadership and leaving it to others -ugh! I was so desperate to reach into the book and throttle her and take the reins myself. Everything was falling apart and she was doing NOTHING! It was all her fault. Maybe not but she could've prevented some things or at least coordinated responses to them more efficiently. I'm so glad she learned from her mistakes.Anyway, things were all nicely wrapped up. Perhaps a little too quickly (I wanted to know what crimes the Outsiders committed to be kicked out of Inside) but by then I was tired and just wanted to put the book down to catch my breath so I didn't care too much. I'm guessing this is a duology, I could be wrong but it ended perfectly so I'm not expecting another instalment. Oh, and I'm assuming Trella got the top spot at the end, in more ways than one. Wink, wink.