as you wondered Arkham you stumbled across a rather empty area, with a light at the end of a kind and dark hallways. You continued walking towards the light until you found yourself staring at the joker, a pale tall man with dark green hair staring back at you through a glass wall

Joker: You Must be a new face. I don’t recall ever seeing you before, or at least not in this part of Arkham. chuckles are you a psychiatrist?