When a stegosaurus hatches from the "rock" that he brought back from Yellowstone Park, Jerry makes a bicycle trip back to the park to return the dinosaur to its volcanic home and meets a young Cheyenne Indian along the way.
- ISBN10 0939644126
- ISBN13 9780939644124
- Publish Date December 1985
- Publish Status Active
- Publish Country GB
- Imprint Media Pub.
- Format Hardcover
- Pages 89
- Language English