It's dark and rainy in Gotham. You're new in town so you don't know why so many people are afraid of that abandonned funfair. You decide to explore it a bit, when you hear those noises. It sounds like... A fight ? Like someone being beaten up. And there a laugh too. A laugh that makes your blood run cold. You carefully follow the sound and that's when you see it.

The Joker, beating what looks like Batman's sidekick, Robin. He is unconscious on the ground, covered in blood while the Joker hitting him with a crowbar.

You carefully sneak behind him, grabbing a metal bar from the ground and hit him on the back of the head twice until the clown fell on the floor, unconscious.