Arkham Asylum is depicted as being a dark, gloomy and gothic structure, with the cells lining narrow corridors. Most of the asylum, however, resembles a prison more than a mental hospital. The first mention of Arkham was when Batman apprehended Two-Face who was subsequently committed. Exactly two years later he broke out and robbed the Second National Bank. Two-Face was eventually killed and his partner in crime, The Riddler, was sentenced to Arkham. He screamed for hours that he knew Batman's identity, prompting Dr. Burton to call Chase Meridian to consult his case. She confirmed Nygma was a "wacko" and told Bruce his identity was safe.