Nobody but Oscar can see Billy, so when anything bad happens around the house, it's Oscar who gets the blame.
- ISBN10 0803704992
- ISBN13 9780803704992
- Publish Date 30 March 1988
- Publish Status Temporarily Withdrawn
- Out of Print 20 October 2016
- Publish Country US
- Imprint Penguin Books Ltd
- Format Hardcover (Library Binding)
- Language English