While gathering food to bring to his grandfather, young Arthur becomes trapped in the city of Ratbridge, where he and some new friends try to stop a plot to shrink the monsters of Arthur's home, the Underworld, for a nefarious purpose.
- ISBN10 0689870477
- ISBN13 9780689870477
- Publish Date 1 July 2006 (first published 1 December 2005)
- Publish Status Out of Stock
- Publish Country US
- Publisher Simon & Schuster
- Imprint Atheneum Books for Young Readers
- Format Hardcover
- Pages 544
- Language English