(Library of Congress description):
When he uncovers a mysterious metal object while digging in the front yard, Wishbone imagines himself as Professor Otto Lidenbrock who attempts to discover the center of the earth by leading an expedition into the crater of an Icelandic volcano.
Based on Jules Verne's Journey to the Center of the Earth
Original title: Digging to the Center of the Earth
Genre: Fiction→ Children & Young Adult→ Adventure
Fiction→ Children & Young Adult→ Tv/movie Tie-ins