Story: "The Riddle Unanswered" (22 Pages)

Credits:

Paul Dini (plot, script)
Dustin Nguyen (pencils)
Derek Fridolfs (inks)
Randy Gentile (letters)
John Kalisz (colors)
Jeanine Schaeffer (associate edits)
Mike Marts (edits)

Feature Character:

Batman

Guest Stars:

Catwoman (last in Catwoman Vol. 3 #81)
Riddler
Detective Chimp
Blue Devil

Supporting Characters:

James Gordon (also in flashback preceding main story)
Oracle II
Alfred Pennyworth

Villains:

Jeremy Ellis (first appearance; also in flashback)
Poison Ivy II (in flashback preceding main story)

Other Characters:

Albert Kozer (first appearance; deceased; dies in flashback)
Sarah Larkin (first appearance; Jeremy Ellis' girlfriend; dies in flashback)
Roger Benjamin (first appearance; a counselor; dies in flashback)
Tucker
Scout (first appearance of both; two dogs)