Cress by Marissa Meyer (The Lunar Chronicles #3)

Incarcerated in a satellite, an expert hacker and out to save the world - Cress isn't your usual damsel in distress. Cress grew-up as a prisoner. With only netscreens for company she's forced to do the bidding of the evil Queen Levana.

Now that means tracking down Cinder and her handsome accomplice Emperor Kai. But little does Levana know that those she seeks, and the man she loves, are plotting her downfall . . . As paths cross and the price of freedom rises, happily ever after has never seemed further away for Cress, Scarlet and Cinder.

This is not the fairy tale you remember. But it's one you won't forget.