This issue is a variant of The Darkness (Image, 1996 series) #20 [Regular Cover]. There exist further variants.
Index data for this variant is taken from information at www.jaycompanycomics.com. Jay Company commissioned E-BAS for this Top Cow 'Babe' cover variant for the Limited 500 Convention Edition line of books. This book was originally available at the Wizard World Chicago.
No story title is listed in this issue. However, "December 21st" is the title used for the reprint of this story in The Darkness: Original Sin collected edition.