Detective Comics Vol. 1 (1937-2011; 2016-) #489

Plot

Batman and a vampire hunter named Moon the Mystic separately stalk a vampire who may be Moon himself. "When the Inmates Run the Madhouse!": Commissioner Gordon enters Gotham State Prison to negotiate with rioting cons, and runs into a trap set for him alone. "The Mind Warp Mystery": Shortly after two mysterious murders, Barbara Gordon loses her memory, and Robin and Commissioner Gordon must restore it and find the secret of the memory-loss and murders. "Computer Crisis" starring The Atom. "The Bogus Butlers" starring Alfred. "Where Strike the Assassins" starring Batman and the League of Assassins. (mycomicshop.com)