User blog comment:The Arrival/Arkham Knight/@comment-5795364-20140707170131/@comment-5795364-20140815085743

it has become my favorite theory.

after all of the fights, the arkham knight takes off his mask and you see it's one of the people who were killed in batman's life(maybe joker?) and then it is revealed he was just an illusion, showing batman's greatest fear.

admit it, that can be a cool twist and again,scarecrow takes the lead as it seems, he could make that illusion for everyone in the zone,hell,he glitched the game,he can do stuff...