Ankylosaurus and Duckbill devise a plan with the other peaceful dinosaurs in their neighborhood to outwit and humiliate Tyrannosaurus Rex before he eats them all.
- ISBN13 9780152908812
- Publish Date 15 March 1990 (first published 1 April 1988)
- Publish Status Out of Stock
- Publish Country US
- Imprint Houghton Mifflin
- Format Paperback
- Pages 32
- Language English