- Script
- Scott Snyder (credited)
- Pencils
- Jock (credited)
- Inks
- Jock (credited)
- Colors
- David Baron (credited)
- Letters
- Sal Cipriano (credited)
- Genre
- superhero
- Characters
- Batman [Bruce Wayne]; The Batman Who Laughs [Bruce Wayne] (from an alternate Earth); young Bruce Wayne (from an alternate Earth); Commissioner James Gordon; James Gordon Jr.; The Grim Knight [Bruce Wayne] (from an alternate Earth); Alfred Pennyworth; The Joker
- Synopsis
- Batman has been transformed by the serum of The Batman Who Laughs into another Batman Who Laughs, but he has one final plan to stop The original Batman Who Laughs. Meanwhile Commissioner Gordon tries to stop the Grim Knight from dousing Gotham with the serum of The Batman Who Laughs, but the battle becomes more difficult when James Jr. gives in to his dark side and aides the Grim Knight.
- Reprints
- Keywords
- Dark Multiverse; Hall of Justice
Story continues in Batman / Superman (DC, 2019 series) #1.