Batman salvages a groundbreaking clue from the wreckage of Wayne Manor and recruits Harley Quinn to confront The Joker for answers about the mystery of Gotham City's foundations! Their investigation takes a dire turn in the darkest corners of Arkham, and Gordon's life is in peril after a new commissioner is named.

Author/Artist: Sean Murphy
Publisher: DC Comics
Page Count: 32pp
Size: 7 x 10
Notes: saddle-stitched, color
Release Date: September 25, 2019