Grand High Witch

The Grand High Witch is the chief antagonist of The Witches and is one of the most influential witches in the world, she leads a secret society of likeminded witches in their neverending quest to kill and torture children: depiction of witches in this story was considerably dark for a children's book and they were all guilty of child-abuse and murder: the Grand High Witch especially had a plan that would of climaxed in turning all the children of the world into mice to be disposed of either by the witches themselves or by their unsuspecting parents.

In the end however the Grand High Witch suffered a somewhat fitting demise when her own magic was used against her and she was transformed (along with many of her followers) into a mouse and killed.