Batman: Arkham City - Harley Quinn's Revenge

Harley Quinn's Revenge begins with Robin searching for Batman, who has disappeared while infiltrating Harley’s headquarters in the Industrial District to free several cops that Harley has kidnapped. During the search, Oracle confides in Robin that she’s worried about Bruce, who hasn’t been the same since the Arkham City incident and refuses to talk about Talia or Joker. Eventually Robin discovers Batman's Utility Belt, discarded. The story rewinds to two days earlier, where Batman learns from Gordon that Harley has taken several officers hostage. Before Batman leaves, Gordon warns him that Harley still blames him for Joker’s death, and that i…