The Adventures of Mary-Kate & Ashley: The Case of the Volcano Mystery (1997)
The girls receive a call from some miners of marshmallows that a snowball-throwing monster has been "terrorizing" them. The girls eventually find out that the "snow" is really ash, and the "monster" is actually a geologist warning them that an active volcano is not a safe place to work.
- Country : United States of America
- Genre :
- Studio : Dualstar Productions
- Director : Michael Kruzan
- Cast : Mary-Kate Olsen, Ashley Olsen