Actually, the conspiracy theorists believe that the Good Witch Glenda brought Dorothy into Oz just to get rid of the evil witches, without it ever being traced back to herself. With just the right amount of prodding, she was able to get the deed done by putting together the 4 travelers in secret, and guiding their way the whole time. The Wizard was of course in on it too.
Actually, the conspiracy theorists believe that the Good Witch Glenda brought Dorothy into Oz just to get rid of the evil witches, without it ever being traced back to herself. With just the right amount of prodding, she was able to get the deed done by putting together the 4 travelers in secret, and guiding their way the whole time. The Wizard was of course in on it too.