The Key's next major appearance came in "Batman: The Dark Knight" (volume 2) #1 (November 2011). The Key is depicted incarcerated in Arkham Asylum (although how he got there is unclear). An aggression-enhancing toxin is released into the air at Arkham, and Batman must battle the Key and a number of other villains as he penetrates the hospital to reach Two-Face. The Key makes another major appearance in the "Justice League" comic a year later, when he is freed from his cell during a riot at Arkham Asylum. Although quickly captured by Batman, Superman and Cyborg, the Key reveals that he and the Weapons Master were broken out of their cells only so that they could be interrogated by a new villain, David Graves, who wanted to know the weaknesses of the Justice League.