Cinder
Cinder is another book by Marissa Meyer, who I think is a really great author, and the first book in the Lunar Chronicles. It takes place, for the most part in future Beijing, and it's all about how the Lunars (people living on the moon) infected the people on earth with the plague and will only give them the cure if the newly crowned king- Kai agrees to a marriage alliance. Only one person- Princess Selene can defeat the evil Queen Levena and take her place on the throne saving the people of earth. But Princess Selene is believed to have died until Kai decides to find her. Meanwhile, he meets the cyborg mechanic, Cinder and is attracted to her. Cinder doesnt tell him that she is a cyborg, fearing that he'll be repulsed. But then, Cinder is taken in as a test subject, (they are testing on cyborgs to try and find a cure to the plague) and they find out that she is immune to the plague.The scientist who tested on her (Dr. Erland), tells her that he is Luna...