Wow, the fact that Jiayang actually drains the life out of others in order to heal herself makes the story of that entire town dying much, much darker. Cal pieced her together again and she drained the life out of all of the townspeople in order to rejuvenate herself. Also, what a great redemption for Raina. "The thorn protecting the daisy". She knew Jiayang was going to kill her, but she let herself die so that Skye could see the truth.