A very good sequel to Under the Never Sky. Perry and Aria haven't seen each other in months, and she has gone back to the Outside in order to look for the Always Blue that the rumors say exist and may be the only solution for her people, as well as Perry's.
I really like these two. They don't go around fighting about stupid things and they are just happy to be next to each other, however difficult that may be. The secondary characters are interesting and likeable, and I love those scarce moments when they're all together. It's sad that they have to go through so many things and I do fear we will be having many tragedies in the next book, even more than what he just had in this one, but I'm really hoping for a HEA here, so I'll be crossing my fingers :)