Dick disguises himself as a guest and infiltrates the Mirror House where the Dealer auctions the Crowbar used in the vicious beating of Jason Todd at the hands of the Joker many years ago. Grayson soon finds out that there is a secret auction called the Mirror House, led by a man called The Dealer who sells weapons and items used by many different villains to the highest bidder. Shortly after Bruce Wayne appointed Dick Grayson to be the Batman of Gotham City, a string of mysterious crimes occur involving weapons from the cast of Batman's rogues gallery. The story is notable as the last to appear in Detective Comics before DC's September 2011 relaunch. Snyder would come to describe The Black Mirror as 'one big story' with both Dick and Gordon's plot lines intersecting and interacting with each other numerous times. When DC dropped backup features from all their books, it was decided that Dick and Gordon would alternate in the book's starring roles. Originally, the title was planned to have Dick Grayson as Batman in the main feature (drawn by Jock) and Gordon in a backup role (also written by Snyder), drawn by Francesco Francavilla. The story began in November 2010's issue of Detective Comics and wrapped up in August 2011. returns to Gotham, bringing a dark past with him.

Gotham puts both of the city's protectors to the test, having Dick discover what it truly means to be Batman in Gotham as he sees a darker side of the city meanwhile, Gordon's estranged son James Gordon Jr.

It focuses on two main protagonists, Dick Grayson as Gotham's Batman and Commissioner Jim Gordon. The concept of the story is that Gotham City is its own character that reflects its seedy nature upon those who try and protect it. 'The Black Mirror' is a story arc crafted by writer Scott Snyder.

The black mirror book