The Witch Glinda's Castle
Glinda looks in her great book for facts about the case. The Princess of the Crystal Kingdom saves Dorothy and her friends from the Crystal Cannon and points them in the right direction.
Aired 19/01/1987EP 16 - The Witch Glinda's Castle
1986
The Wonderful Wizard of Oz
Based on The Wonderful Wizard of Oz (1900), The Marvelous Land of Oz, Ozma of Oz, and The Emerald City of Oz (1900-1920) by L. Frank Baum (1856-1919).
(Source: AniDB)