Muck the monster reluctantly attends his friends Slug's birthday party.
- ISBN10 0823403696
- ISBN13 9780823403691
- Publish Date 1 January 1980
- Publish Status Out of Print
- Out of Print 15 December 2011
- Publish Country US
- Imprint Holiday House Inc
- Format Paperback (Library Binding)
- Pages 32
- Language English