Willie is king of the knock-knock jokes at summer camp, but to retain his title he must win the great riddle contest against Crow, who is best at everything.
- ISBN10 0606091246
- ISBN13 9780606091244
- Publish Date 1 January 1996
- Publish Status Out of Print
- Out of Print 1 July 2021
- Publish Country US
- Imprint Demco Media Inc
- Edition Turtleback School & Library ed.
- Format Hardcover
- Pages 47
- Language English