"Exiled to live as a Low, sixteen-year-old Conrad refuses to become heir to his murderous uncle. But Meritocracy is a harsh and unforgiving rule on the floating island of Holmstead, and when his ailing mother is killed by monstrous gorgantauns, Conrad cuts a deal to save the only family he has left. To rescue his sister from his uncle's clutches, Conrad must enter the Selection of the Twelve Trades"--

"For 400 years, Earth has been a barren wasteland. The few humans that survive scrape together an existence in the cruel city of Pocatel -- or go it alone in the wilderness beyond, filled with wandering spirits and wyrms. They don't last long. 13 year-old pickpocket Leandro and his sister Gabi do what they can to forge a life in Pocatel. The city does not take kindly to Cascabel like them -- the descendants of those who worked the San Joaquin Valley...