A mysterious egg /
Stacy McAnulty ; illustrations by Mike Boldt.
- 104 pages : illustrations ; 21 cm.
- The dino files ; 1 .
"A Stepping Stone Book."
During a summer at his grandparents' dinosaur museum and dig, the Dinosaur Education Center of Wyoming, Frank, aided by his cousin Sam and cat Saurus, cares for a newly-hatched dinosaur while trying to keep its existence secret, both from his grandparents and from the neighbors.