Cress, by Marissa Meyer, 550 pages
This is the 3rd book in the Lunar Chronicles series. Cinder and the gang are still on the lam, running away from evil Queen Levana. The new character in this book is Cress, a girl with really long hair who has been isolated in a satellite for years. So her story is a Rapunzel retelling. I thought this was pretty good- the action is there, the characters are diversifying so there's less time for angst-y outbreaks and moping, and the story is really coming together.