Batman/Superman Vol. 1: Who are the Secret Six?

Up in the sky, in the dark of the night, trust no one-for the Secret Six walk among us. Spinning out of the devastating events of The Batman Who Laughs, Superman and Batman are together once more and facing a terrifying new threat that could strike from anywhere. The Dark Knight and the Man of Steel must journey into the depths of Gotham City to learn which of their fellow heroes have become the horrifying horsemen of their most dangerous and deranged foe ever, with Shazam!, Supergirl, and ...