Issue Shadow of the Bat 4
Subtitle The Last Arkham part four
Date September 1992
Writer(s) Alan Grant
Artist(s) Norm Breyfogle
storyline Batman defeated each of the inmates and was put in isolation. Nightwing visited Gordon and learned the facts about his mentor's imprisonment. He discovered how Zsasz had been escaping - one of his victims was the head contractor during Arkham's recent renovations. He'd created an escape tunnel. He and Batman converged on Zsasz and took him down despite sustaining stab wounds in the fight. They delivered him back to Gordon and Arkham. Arkham was humiliated when he was told about the setup, though there was no evidence to incriminate him.