The cave

"In the rural foothills of the Sierra Nevada Mountains, two adventuresome youths discover a cave containing something very unexpected that had remained hidden for centuries. Lost in time and connected to an ancient legend predating the gold rush, this extraordinary discovery is at the heart of the novel The Cave. What started out as a simple exploration soon turns out to be an old-fashioned treasure hunt, possibly of immeasurable value for the brothers. In this modern day adventure story, Keegan and Brad's discovery is of such great historical significance that they enlist the help of their father, Tom, their college professor, George, and a good-natured archaeologist named Susan."--Page 4 of cover