TY - BOOK AU - Thompson, Carol TI - The case of the volcano mystery T2 - Adventures of Mary-Kate & Ashley SN - 9780590880145 U1 - 823 PY - 1997/// CY - New York PB - Scholastic N2 - Three marshmallow-mining prospectors have been scared away from their mine by a claim-jumping, snowball-throwing monster. In a wild volcanic wilderness like Jelly Jungle, what kind of monster can the twins be up against? ER -