Attic

Moody Joker, guess who upset him.
Batman finds him in an attic of an abandoned house. There's an aura of malice, anger and sadness surrounding joker.  He keeps winding up a rotating nightlight that clinks out a distorted music box melody. Joker is grim faced with lost madness glinting in his eyes. His demeanour reminds Batman of a child hiding from abusive parents, but knows one wrong move and this childlike fiend could destroy half the city and kill him brutally. This isn't like most of their other encounters Batman knows. He must be very careful.

I did this while listening to Gollum's song.