In the DC wiki it says:
"After a skirmish with Batman, the Joker is caught and taken to Arkham Asylum. There, the Dollmaker, pays him a visit, which the Joker seems to have been expecting. The two have cordially arranged this meeting, and the Joker has assigned his visitor with a special task: he has the Dollmaker cut off his face, and pin it to the wall."
I do not recall reading this in the Batman comics. So which other comic is it from? My friend says it's from Detective Comics, but he's not sure. So which comic is it from?