The Lunar Chronicles - Winter By Marissa Meyer

Princess Winter is admired for her grace, kindness and beauty, despite the scars on her face. She's said to be even more breath-taking than her stepmother, Queen Levana.

When Winter develops feelings for the handsome palace guard, Jacin, she fears the evil Queen will crush their romance before it has a chance to begin.

But there are stirrings against the Queen across the land. Together with the cyborg mechanic, Cinder, and her allies, Winter might even find the power to launch a revolution and win a war that's been raging for far too long.