Editor's note: this story takes place before War Crimes.
After one more time being humiliated, Hush went after the Joker. He found him in Cobblepot's Iceberg Lounge. Joker flashed something at him and he went down. He'd been unconscious for three weeks - Joker had one of the controllable pacemakers installed in him.
Batman went after Joker, but had to attend a guard he'd shot.
Hush went to Bruce Wayne. Bruce agreed to help if Hush admitted himself to Arkham. He did. After the successful surgery, Elliot escaped. Batman caught up with him on a rooftop. Hush lectured him about killing and how many had died due to him not killing his "freaks." Batman still refused to let him kill the Joker. Batman insinuated there'd been no surgery at Arkham just before the Joker appeared.