Book details
Mystery of the Desert Giant
The Hardy Boys, 1994 by Franklin W. Dixon
on Goodreads (11)
Description
When a giant green creature appears in the Arizona desert, the Hardy Boys find themselves embroiled in one of their most intriguing and dangerous cases. The brothers' investigation takes them from the desert to a large man-made mountain full of tunnels and secret entrances, and finally to a shocking discovery about the 'desert giant'.