As part of DC’s “All In” publishing initiative launching in October, Detective Comics, one of DC’s foundational comic book titles, continues with an all-new story and new creative team as Eisner Award-winning writer Tom Taylor and superstar artist Mikel Janín take the Dark Knight in a new and chilling direction. On October 23, Taylor and Janín, with letterer Wes Abbott, debut part one of “Mercy of the Father” when Detective Comics #1090 arrives at participating comic book shops and digital retailers.

Detective Comics #1090 reveals a mystery surrounding the origin of DC’s Caped Crusader and introduces a mysterious and terrifying new villain stalking the bloodstained streets of Gotham City. Long ago, the murders of Thomas and Martha Wayne changed Gotham forever. But there is something you never knew about the Dark Knight’s tragic origin—something that has been lying in wait to strike at Batman ever since that fateful night in Crime Alley. And now, all these years later, this ghost of Gotham’s past begins to reveal itself. The streets of Gotham will run red with blood until the World’s Greatest Detective solves one of his most earth-shattering cases yet.

Detective Comics #1090 features a main cover by series artist Janín, with variant covers by Dan Panosian, Bruno Redondo, Tony Harris, and Ashley Wood, plus an “All In” foil variant cover by Daniel Sampere.