- Script
- Kami Garcia (credited)
- Pencils
- Mike Mayhew (credited); Mico Suayan (credited); Jason Badower (credited)
- Inks
- Mike Mayhew (credited); Mico Suayan (credited); Jason Badower (credited)
- Colors
- Mike Mayhew (credited); Jason Badower (credited)
- Letters
- Richard Starkings of Comicraft (credited as Richard Starkings of Comicraft)
- Genre
- superhero
- Characters
- Harley Quinn [Harleen Quinzel]; James Gordon; Detective Maddox; Jonathan Crane; Victor Zsasz; Mick Kelly (flashback); John Kelly [Joker]; Barry Quinzel (Harley's brother); Sharon Quinzel (Harley's mother, flashback); Joey Cassamento (flashback); Detective Murphy; park bench killer
- Synopsis
- As Dr. Harley Quinn works alongside Jim Gordon and the Gotham City Police Department to identify the killer leaving bodies in creative poses, Harley suspects a connection to the Joker's first victim of 5 years earlier, Mick Kelly. In flashback, we see how Mick's abuse of his son John starts to send him down a twisted path, leading him to become the Joker.
- Reprints
Consultant: Edward Kurz, MD
- Pencils
- Mike Mayhew
- Inks
- Mike Mayhew
- Colors
- Mike Mayhew
- Letters
- typeset
- Genre
- superhero
- Characters
- John Kelly [Joker]
Cover art for Variant Cover by Mike Mayhew.
- Pencils
- Mike Mayhew (credited)
- Inks
- Mike Mayhew (credited)
- Colors
- Mike Mayhew (credited)
- Letters
- typeset
- Genre
- superhero
- Characters
- Mick Kelly; John Kelly [Joker]
Back cover illustration taken from the story.