Perry and Aria have met back up with a common goal of finding the still blue sky. 
 Until Aria goes to the tides campsite and isn't welcomed by many. Not surprising. In two days, the Tides had seen a rogue Aether storm, an attempt on Aria's life, and a rebellion. Aria realizes that maybe being with Perry around the Tides isn't the best idea and sets off with Roar on a trip of their own. Perry is left on his own fending off the Tides camp from anyone and everything. 
 A lot of names and people in this book kind of overwhelming and made it confusing at times. 
 (view spoiler)[ 
 Awh Cinder is a dweller also! & there's other kids out there (hopefully still alive) just like him! I wonder if he was somehow made to fight the aether? A genetic experiment of some kind? 
 Kirra is leading on Perry without Aria being there to defend her man! I'm not liking this. Though I really hope Perry is a strong enough man to not NEED Aria there to stay clear of seduction. After the beach scene *phew* I knew you were a good man Perry! 
 Not surprised by Kirra's betrayal of taking poor Cinder. & finally after being separated nearly the entire book Perry and Aria are united again and ready to kick some ass! 
 (hide spoiler)]