Cinder - Marissa Meyer - Paperback

The Lunar Chronicles, book 1 of 4, completed series

Cinder a gifted mechanic in New Beijng, is also a cyborg. She's reviled by her stepmother and blamed for her stepsister's sudden illness. But when her life becomes entwined with the handsome Prince Kai's she finds herself at the centre of a violent struggle between the desires of an evil queen - and a dangerous temptation. 

Cinder is caught between duty and freedom, loyalty and betrayal. Now she must uncover secrets about her mysterious past in order to protect Earth's future.