The Walnut Cup, the only American stop on the World Squirrel Soccer League tour, is taking place in Elliot's park. When the game ball, a perfectly round walnut, cannot be found, it is up to Elliot and his friends to find it.
- ISBN10 0606105808
- ISBN13 9780606105804
- Publish Date 1 April 2009
- Publish Status Out of Print
- Out of Print 8 February 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Pages 79
- Language English