1st Appearance and Death of Harley Quinn (Earth-3); 1st Appearance and Death of Riddler (Earth-3); 1st Appearance of Harley Quinn (Earth-3); 1st Appearance of Riddler (Earth-3); 1st Appearance of Talon (Earth-3); 1st Appearance of Three-Face (Earth-3); Death of Harley Quinn (Earth-3); Death of Riddler (Earth-3); Origin of the Jokester; Versus the Crime Society; Continues in Countdown Presents: The Search for Ray Palmer: Red Rain #1
The Jokester’s Last Laugh
Writer: Sean McKeever
Artist: Jamal Igle