Story: "Part Four: Everyone Knows This is Nowhere" (30 Pages)

Credits: Chuck Dixon and Scott Beatty (plot, script); Andy Kuhn (pencils, inks); Willie Schubert (letters); Tom McCraw (colours); Digital Chameleon (colour separations); Matt Idelson (edits)

Feature Character: Joker

Guest Stars: Batman; Harley Quinn, Militia (last in Birds of Prey #35), Lady Blackhawk, Black Canary II (last in Birds of Prey #36)

Supporting Characters: Dina Bell, Shilo Norman, Kirk Langstrom, General Crisp, Lex Luthor

Villains: Rancor, Stormfront (first appearance), Mister 104, Doctor Light III; Bolt (last in Joker: Last Laugh Secret Files #1); Floro, Cerberus, Matter Master II, Terra-Man, Hellgrammite (last in Birds of Prey #36; next in Robin Vol. 2 #95), Barrage, Captain Nazi, White Dragon (last in Hawkworld Vol. 2 #?), Warjack, Kilg%re, Frag, Copperhead, Phobia, King Shark, Mister Mind (last in Birds of Prey #36); Sivana, Apeface, Meathead (last three last in Nightwing Vol. 2 #62); Deadshot, Deadline, Merlyn (last three next in Flash Vol. 2 #179); Ocean Master, Joe Gardner, Killer Croc, Scarface, Ventriloquist, Multi-Man

Other Character: Doctor Clyde

Synopsis

Dina Bell and Shilo Norman are trapped inside a singularity along with the Slabside penitentiary and some of its inmates. Meanwhile, with the help of Stormfront and Mr 104, the Joker goes about brewing up crazy rain, which will spread the Joker influence far and wide.

As Earth's heroes contain the maddened villains, they discover that the Joker serum is killing them, and they must find an effective antidote, and a means of delivering it, fast. Harley Quinn is reluctantly working with Kirk Langstrom on this. The military forces of the United States are also doing their best to bring in the meta-human criminals, ably assisted (though Luthor will not want to admit this) by various costumed adventurers. As the Joker prepares for an assault on the President, Black Canary discovers from the doctor that diagnosed the Joker that the villain is not suffering from a tumour at all. The doctor had wrongly thought that the possibility of death would calm the Joker down.

Inside the Slab, Shilo and Dina hook up with an unlikely ally in the form of Mister Mind and set out to find Black Mass to reverse the singularity. However, when they are once more pursued by the maneaters, Dina accidentally shoots Black Mass in the forehead. And the Joker's forces find their way to Arkham Asylum, where the criminals are already mad enough...