Willie Worm leads his friends into adventure and trouble. Willie is represented by a piece of green yarn threaded through holes in the book's pages.
- ISBN10 0394847598
- ISBN13 9780394847597
- Publish Date 12 July 1981
- Publish Status Active
- Out of Print 18 October 2003
- Publish Country US
- Publisher Random House USA Inc
- Imprint Random House Inc
- Format Hardcover
- Pages 24
- Language English