"The Goofballs are invited to a superhero masquerade to stop a mysterious figure from stealing a priceless collection"--
- ISBN10 1606843672
- ISBN13 9781606843673
- Publish Date 9 October 2012 (first published 1 January 2012)
- Publish Status Active
- Publish Country US
- Imprint Egmontusa
- Format Paperback (US Trade)
- Pages 103
- Language English