Beware the Quiet Ones

Dark!AU Forget Thief King.  Everyone's been trying to stop Yami Bakura and Yugi's been secretly wandering around taking over the world with no one noticing and TK finds him and is like "What are you doing here?" and Yugi's like "Don't you know? I've been here all along."  And then TK loses it and breaks some stuff, and then Yugi breaks him.  (Seriously, sweet!sociopath!Yugi is terrifying.)
note: this got reposted later in an idle thought...