Looking for a fic that I thought I read on AOX3, all I can remember is that it was a Tony centric fic, at one point he returns to one of his mansions and realizes that an old female housekeeper was still there looking after the place. She was both terrifying and awesome at the same time. I think at some point the avengers were trying to use a ballroom in the place?
Any help would be appreciated! Thanks :)