Sixteen-year-old Col Porpentine is being groomed as the next Commander of Worldshaker, a juggernaut where elite families live on the upper decks while the Filthies toil below, but when he meets Riff, a Filthy girl on the run, he discovers how ignorant he is of his home and its residents.
- ISBN10 1416995528
- ISBN13 9781416995524
- Publish Date 18 May 2010 (first published 1 January 2009)
- Publish Status Active
- Publish Country US
- Publisher Simon & Schuster
- Imprint Simon & Schuster Books for Young Readers
- Format Hardcover
- Pages 400
- Language English