* 1st Appearance "DOCTOR MOON"

Batman is summoned to the Gotham Morgue, where Commissioner Gordon shows him the corpse of a man whose brain was removed. Gordon and his team are baffled at the mystery and he asks Batman to investigate the case. For this reason, Batman pays a visit to an old criminal that he knows might have information about this odd crime. Unfortunately, Batman is attacked by this exact man and his criminal peers, as he is trying to interrogate them. The thugs manage to get the upper hand in the fight and Batman is saved by the timely arrival of Talia, who shoots the criminals to prevent them from hurting Batman.

After a brief introduction, Batman and Talia realize that they are both trying to solve the same case and thus, they decide to work together. Talia informs Batman that the man who was murdered was a former business partner of her father and that she needs to find his killer. Following the few clues they have, Batman and Talia arrive to a private building and they break inside. When they reach the main room, they witness a man confessing the crime to another man and Batman jumps at them before he starts interrogating the criminal. When the man refuses to answer, Talia acts and she informs Batman that she has carried a vial of truth serum with her, which would make him confess. However, as soon as Talia injects the serum, the man falls unconscious and Talia realizes that she had injected an amnesic serum. With his memory gone, the criminal is no longer useful to them and Talia apologizes for her mistake

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