Star Wars: The Last Jedi - 8 Fan Theories That Make Appalling Sense
2. Kylo Ren Lives In Vader’s Castle
The Theory
In awe of his grandfather and everything about him, Kylo Ren has taken up residence in Darth Vader's castle on the planet Mustafar, according to this fan theory.
Vader's Bast Castle, an imposing structure befitting of a supervillain, was supposed to appear in the original Star Wars trilogy, but only found its way into the saga in last year's hit prequel Rogue One: A Star Wars Story.
The Evidence
Ren's sheer obsession with his grandfather is a strong piece of circumstantial evidence pointing to him moving into Vader's old digs, but there's more to it than that.
Subscribers to this school of thought have pointed out the design similarities between the main tower in Bast Castle and Ren's ship, and there does appear to be some.
Moreover, it would make sense for the character to reside there if the movie is planning on going down the Anakin Force ghost route, since his connection to his grandfather would arguably be stronger in this location.
The emo Ren could do with some extra badass cred if he's going to be our main villain, and moving him into a fortress surrounded by lava would be a good start.