When Grandpa's lucky hat goes missing during a college football game, detective Jeffrey Bones and his friend Sally help look for it.
- ISBN10 0670012505
- ISBN13 9780670012503
- Publish Date 13 September 2012
- Publish Status Remaindered
- Publish Country IN
- Publisher Penguin Random House India
- Imprint Penguin
- Format Hardcover
- Pages 32
- Language English