| Issue | #21 |
| Published | February 2008 [December 5, 2007] |
| Cover Price | 2.99 USD; 3.65 CAD |
| Pages | 36 |
| Editing | Mike Carlin; Elisabeth V. Gehrlein (assistant) |
| Characters | Granny Goodness; Desaad |
| Genre | Superhero |
| Pencils | Karl Kerschl (signed) |
| Inks | Karl Kerschl (signed) |
| Colors | Karl Kerschl (signed) |
| Characters | Pied Piper [Hartley Rathaway]; Trickster [James Jesse] (deceased); Holly Robinson; Harleen Quinzel [Harley Quinn]; Tricia; Challengers of the Beyond [Green Lantern [Kyle Rayner]; Donna Troy; Bob the Monitor; Jason Todd]; Batman [Terry McGinnis] (Earth-12; Batman Beyond Earth); Karate Kid [Val Armorr]; Una [Luornu Durgo]; Buddy Blank; Buddy Blank's grandson; Firestorm [Jason Rusch; Gehenna]; Atomic Knights; Nix Uotan the Monitor; VILLAINS: Granny Goodness [also as Athena]; Desaad; OMACs |
| Synopsis | Pied Piper comes to terms with Trickster's death, than realizes their manacles will explode in 24 hours, Desaad and Granny Goodness discuss The Great Disaster, Holly and Harley continue their Amazon training, one of the Monitors tries to eliminate the Challengers of the Beyond and Karate Kid and gang appear to trigger The Great Disaster. |
| Genre | Superhero |
| Script | Paul Dini (head writer); Keith Giffen (story consultant); Sean McKeever |
| Pencils | Jamal Igle |
| Inks | Mark McKenna |
| Colors | Pete Pantazis |
| Letters | Travis Lanham |
| Characters | Granny Goodness (origin); Mercy (warhound; dies); Darkseid; Female Furies [Bernadeth; Lashina; Mad Harriet; Stompa] |
| Synopsis | The origin of Granny Goodness. |
| Genre | Superhero |
| Script | Scott Beatty |
| Pencils | Jon Bogdanove |
| Inks | Jon Bogdanove |
| Colors | Hi-Fi |
| Letters | Travis Lanham |
| Characters | Dan Didio (photo); Jann Jones (photo) |
| Script | Dan Didio |
| Pencils | ? (photos); ? |
| Inks | ? (photos); ? |
| Colors | ? (photos); ? |
| Letters | typeset |
| Notes | Dan Didio shows photos from DC's 2007 Halloween party. Hot list - COUNTDOWN: ARENA #1, JUSTICE SOCIETY OF AMERICA #11 and ROBIN #169. House ad for COUNTDOWN #20. |