Wow. I never really thought about what could have happened in Arkham - but now you mention it, even the crazies thought he was crazy.

My favorite line is "She held Harley Doll and stared at the wall, finding pictures in the imperfections." Harley has such an imagination, so I can imagine her trying to find pictures on the Arkham walls. She can also find beautiful things in the Joker's imperfections, so the line is doubly appropriate.

I also like how Scarecrow tried to cheer her up. A good story overall.