A horrific tragedy in the United Kingdom sends a very personal and deadly message to the Dark Knight-one that will draw Batman out of Gotham City to investigate! From the moment he lands in Europe, Batman will face a difficult investigation and unheard-of adversaries and find the assistance of a partner once more-all in the hunt for the villain known as Equilibrium! New villains! New allies! A thrilling overseas adventure begins for the Dark Knight! As Batman's pursuit goes on, the mystery around the organization known as Equilibrium deepens! Just who are these enigmatic villains, and why are they out to erase the Dark Knight's legacy? And how does Henri Ducard play into all this-can this face from Bruce Wayne's past be the key to it all? Collects Batman: The Detective #1-6.