When you find yourself trying to remember a show (or any works) that's on the tip of your tongue but just out of reach, come here - the collective brain of the TVTropes community can probably help. Post all the details you can remember (examples help). If you're looking for a trope, head over to Trope Finder. Have general questions about tropes? Visit Ask The Tropers!
Medinoc
Since: Jan, 2001
12th Feb, 2019 12:53:25 AM
Sounds like The Magicians House (wikipedia: The Magician's House).
Which I asked here back in the day (years ago), so it feels good to provide this answer like it was once given to me.
Edited by Medinoc "And as long as a sack of shit is not a good thing to be, chivalry will never die."
Was it about a girl who discovers that a magician or a magician used to live in her house and the Wizard used time travel powers to teach her, but to his old / current? apprentice does not appreciate this and turns himself into a mouse to make the girl kill the baby brother .... Pretty Wild.