User blog comment:Blue Jay Superior/Doctor Who Series 9: The Magician's Apprentice/The Witch's Familiar Theories/@comment-28119130-20150221170845

I fully agree with your theory! I think that 'the Apprentice' (Clara) will defeat 'the Familiar'. The only question is; who or what will the Familiar be. I also think it will take place in the past! Great theories! :)