3.5 stars. I was getting really frustrated with this book. Maybe it's just me but I just hate it when the heroes have nothing but constant, unfair obstacles thrown in their way. Like jeez... stop kicking a kid while their down! However, that's really more of a personal complaint not a complaint against the story itself. 
 There was tons of action in this installment but just not enough... humor I guess. I really want to see the guard have some more personality other than "I'm a fighter" and "Holy crap! Bad guys are trying to kill me all the time." What first endeared me to John was how he really felt like a goofy teenage kid, who also just happened to be an alien superhero. I guess I just want the guard to have some more human moments. (view spoiler)[Although there was that one scene between John and Nine while their driving to New Mexico and talking about how dopey girls make them. Awwww! (hide spoiler)] 
 Now I'm going to geek out about the new developments in a spoiler section so no one curses my name! 
 (view spoiler)[ I really like Six as a heroine. She's everything I want in one and more. I'm so glad she's narrating for about half the book. 
 Eight! We finally get us some Eight. I'm shipping him and Marina. They both know what it feels like to be completely alone so I think they will bond over that. 
 Crayton! NOOOOOO! Poor Ella. Crayton was, for all intent's and purposes, her father figure... she even called him Papa. All the Cepan's are dead now unless Five still has one. I guess they will just have to experiment with their inheritances to figure out what they do. Also, Crayton was the only one who knew where the rest of the Chimera were so that sucks... 
 Nine is a bit of a loose cannon. He has a good heart but I'm not sure how things are going to play out. 
 John finally finds Sarah! O man... Sarah has had a rough time. She was tortured by both the Mogs and the FBI! 
 WHERE IS SAM?! They still haven't found him! I hope they eventually do. (hide spoiler)]