Thompson, Carol <br/><br/>
The case of the volcano mystery 

 - New York  Scholastic  1997 
 - 80 
 - Adventures of Mary-Kate & Ashley .
<br/><br/> 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? 
<br/><br/><label>ISBN: </label>9780590880145 
<br/><br/><label>Dewey Class. No.: </label>823  / THO-C