Superman #21
- WRITER
- Patrick Gleason, Peter J. Tomasi
- Artist
- Ray McCarthy, Joe Prado, Mick Gray, Patrick Gleason
- Letterer
- Rob Leigh
- Cover Artist
- Jorge Jimenez, Patrick Gleason
- Publisher
- DC Comics
- Price
- 2.99
- Release Date
- 2017-04-19
- Colorist
- John Kalisz, Hi-Fi
'Superman black' part two! A 'Superman Reborn Aftermath' tie-in! The Man of Steel is challenged to break his code against killing in front of his son as the mystery surrounding Hamilton deepens.