Chapter Summaries

The Justice League learned that the Sixth Dimension might hold the key to saving the Multiverse, and Superman entered it alone. He returned moments later as an elderly, vastly more powerful version of himself, leaving the League unsure what had happened to him.

• Mister Mxyzptlk explained that the Sixth Dimension was the Multiverse's control room and that Perpetua had once lived there.
• The Justice League agreed to send Superman to the Sixth Dimension, and Mister Mxyzptlk opened a portal for him.
• Superman entered the portal, which closed and severed all connections to him.
• An elderly Superman in a white-and-gold suit emerged through the door and greeted the Justice League.
• J'onn confirmed that the newcomer was Superman, though he had become immensely more powerful.

Superman returned from another dimension with the answer to the Cosmic Crisis and led most of the Justice League through a portal. Green Arrow suspected Superman had already solved the crisis and went to find Deathstroke, while Aquaman and Starman stayed behind.

• Superman explained that decades had passed for him in the other dimension and said he had found the only solution to the Cosmic Crisis.
• Batwoman, Diana, Barry, and the others followed Superman through the portal, while Batwoman said the multiverse still needed protection and Arthur and Starman remained behind.
• After the portal vanished, Green Arrow told Arthur that Superman's Nth Metal suit suggested the crisis had already been solved in that world.
• Green Arrow grew suspicious that Superman had not told them the universe was safe and said he needed to find Deathstroke before vanishing.
• Arthur and Starman decided to drink while they waited.

Su Ming and Thomas Wayne waited in Wayne Tower while their allies searched for The Batman Who Laughs, and Cindy Wilson arrived to exchange weapons with Su Ming. Su Ming prepared to act after the Justice League meeting and left Cindy to keep Thomas occupied, while she agreed to explain the Multiverse for a price.

• Thomas asked Su Ming whether they were going to do nothing, and Su Ming said he was waiting for their enemies to expose themselves.
• Cindy Wilson arrived from Earth -11, exchanged the Nightfall Greatsword for Godslayer with Su Ming, and discussed getting Nth Metal weapons from Thanagar.
• Su Ming explained that Hawkman's body had recovered but Barbatos's brainwashing kept him asleep, and proposed entering his dream through the Dreaming to wake him.
• Su Ming said he expected Barry or Oliver to report on the Justice League meeting and instructed Cindy to stay with Thomas as a diversion.
• Cindy warned that The Batman Who Laughs might rebuild his Dark Knights force, and she and Su Ming discussed Bliss's joint defense plan and Thomas's potential influence.
• Thomas asked Cindy to tell him about the Multiverse, and she agreed to do so if he paid her.

Su Ming brought Green Arrow to the Court of Owls Cemetery and reasoned that the Batman Who Laughs’s actions and the Justice League’s trip to the Sixth Dimension concealed a deception. He identified the transformed Superman as an impostor and suspected Batwoman’s choice to seek Mister Mxyzptlk reflected the Joker Virus’s influence.

• Su Ming pulled Green Arrow through a Teleportation Portal to the Court of Owls Cemetery and inspected its owl statue and coffins.
• Green Arrow reported that Batwoman had found Mister Mxyzptlk and that Superman had returned from the Sixth Dimension aged, dressed in white, and wearing a golden S.
• Su Ming deduced that the transformed Superman was an impostor because he did not wear his underwear outside his pants.
• Su Ming concluded that Batwoman’s choice to seek Mister Mxyzptlk instead of her devoted fan Bat-Mite showed the Joker Virus had made her crave entertainment.

Su Ming and Green Arrow discovered a hidden chamber beneath the Court of Owls' graveyard fountain and traced the Final Laugh system to Gotham's old city center. Using metal resonance to track The Batman Who Laughs, Su Ming led Green Arrow into the darkness, expecting to find him there.

• Su Ming told Green Arrow they needed to deal with The Batman Who Laughs before they could save the Justice League.
• Su Ming explained that the graveyard fountain had contained Amber Gold and that the flooding had only sealed the route to the chamber.
• Green Arrow found a hollow space beneath the fountain, and Su Ming opened a passage into a dry underground chamber.
• Su Ming reasoned that the Court of Owls had placed its Final Laugh system at the center of old Gotham to launch airships across the city.
• Su Ming used the resonance between metals to track The Batman Who Laughs and advanced through the chamber with Green Arrow.

Batwoman and Wonder Woman entered a seemingly peaceful Hall of Justice, while Superman remained trapped in darkness among the corpses of other Clarks. Su Ming confronted The Batman Who Laughs, who revealed his powerful Final Laugh Armor and claimed he had killed his Justice League to prepare for Perpetua’s arrival.

• White Superman welcomed Batwoman and Wonder Woman to a grand Hall of Justice and claimed the Justice League had won.
• Superman wandered through endless darkness, found a mass grave filled with other Clarks, and realized Mister Mxyzptlk had trapped him.
• The Batman Who Laughs fired Heat Vision at Su Ming and Oliver as they entered a dark passage.
• Su Ming teleported behind The Batman Who Laughs, but the Final Laugh Armor caught his greatsword and endured an attack powered by five Power Rings.
• The Batman Who Laughs described how his Justice League built the armor for Batwoman and said he had killed them to prepare for Perpetua.

Su Ming battled The Batman Who Laughs in Hellbat Armor and learned that it had been enhanced with Tenth Metal through time reversal. Meanwhile, the Justice League explored the future Court of Justice, where White Superman’s allies warned them that the truth about their situation was terrifying.

• Su Ming tested The Batman Who Laughs’s Hellbat Armor and discovered that it resisted energy attacks and could withstand Tenth Metal.
• Su Ming and The Batman Who Laughs exchanged powerful blows, each driving the other into the cavern walls.
• The Batman Who Laughs revealed that he had used the Speed Force to reverse selected objects twenty billion years and turn them into Tenth Metal.
• The Batman Who Laughs activated the Speed Force and charged at Su Ming, who stood motionless.
• White Superman showed the Justice League the open, unguarded Court of Justice, and Barry explored it while J’onn reunited with his family.
• Batwoman and Diana urged White Superman to explain their mission, and Cassie warned that the truth about time and dimensions would be terrifying.

White Superman explained that Perpetua had escaped and that the Multiverse had to reach its final evolutionary form to face judgment, while the Justice League prepared to investigate the new world. Jar-ro woke in the Hall of Justice and discovered that Mister Mxyzptlk was repeating a warning about erasing the Timeline.

• White Superman told the Justice League that they had to accelerate the Multiverse’s evolution so it could face final judgment and prove its worth.
• Superman explained that Perpetua had defied her intended role as nourishment for the Multiverse and sought to turn it into a weapon against her fellow gods.
• Superman assigned guides for the League to explore the new world before meeting again the next day.
• Batwoman dreamed that Jar-ro helped her capture Deathstroke, then awoke to discover Jar-ro was in a jar at the Hall of Justice.
• Jar-ro probed Mister Mxyzptlk’s mind and heard him repeat, “Before it’s too late, I have to erase this Timeline.”

Su Ming fought The Batman Who Laughs beneath Gotham, using magic to neutralize the Hellbat Armor’s Speed Force and forcing the battle into a more even contest. Meanwhile, Bruce learned from Dick Grayson that the peaceful Gotham of the Sixth Dimension had cured its villains and transformed Arkham into a care center honoring Alfred.

• The Batman Who Laughs attacked Su Ming with the Hellbat Armor, and Su Ming used Grease Spells to cover the battlefield and disable his Speed Force.
• The Batman Who Laughs recognized Su Ming’s plan to exploit the armor’s weaknesses, so both abandoned their speed advantages and prepared to fight again.
• Bruce and Dick Grayson surveyed the bright, orderly Gotham and discussed how Dick had become Batman after Bruce’s death.
• Dick told Bruce that Gotham’s villains had been cured and that Arkham had been converted into the Alfred Care Center after Alfred died peacefully.

Batman, Diana, Barry, John, and J'onn each noticed clues that the seemingly perfect Sixth Dimension was an illusion or trap. Diana and J'onn secretly planned to rendezvous with Batman and escape.

• Batman visited Alfred Sanitarium with Dick and enjoyed coffee while noting that the world had changed.
• Diana toured Paradise Island with Cassie, then recognized that her Tenth Metal disc resonated with the Main Dimension and decided to investigate Gotham.
• Cassie told Diana that Damian had gone mad from using the Lazarus Pit, and Diana entered a Teleportation Portal to see Gotham and Dick for herself.
• Barry questioned White Wally's claims about creating Parallel Worlds, while John noticed that his older self lacked the Invisible Spectrum Ring.
• J'onn noticed that his supposed future son Shaun's white wings made no sense, concluded the scene was a scam, and secretly planned with Kendra to meet Batman and escape.

Wonder Woman, Batman, Barry, and John met in a seemingly peaceful garden, but Batman recognized that their surroundings and the people around them were impostors. Batman kept his suspicions hidden while waiting for a chance to act, and the Joker’s laughter grew louder in his mind.

• Wonder Woman arrived and found Batman lounging with Dick, but Batman sent Dick away so he and Diana could speak privately.
• Batman told Diana to wait and keep quiet, while she worried that his Joker Toxin was affecting him.
• Barry returned with John, and Diana stopped Barry from openly discussing their situation as the group sat together.
• Batman recalled the inconsistencies he had noticed, including the claim that Dick had become Batman and that Gotham’s villains had been cured.
• Batman reasoned that Tim was the likeliest person to inherit his role and that a supposed death without instructions for Tim meant his death was fake.
• Batman’s suspicion deepened as the Joker’s laughter grew clearer in his mind.

Su Ming struggled to damage the Batman Who Laughs’s Hellbat Armor while relying on Oliver to act against the villain’s wider plans. Meanwhile, Batman led the Justice League to a hidden Gotham Safehouse, where they confirmed their world was false and began weighing ways to escape.

• Su Ming trapped the Batman Who Laughs with tentacles and repeatedly targeted the Hellbat Armor’s right leg, but the armor repaired the damage and the fight stalled.
• Batman brought Barry, Diana, J’onn, John, and the others to a hidden Safehouse after they recognized that their world was an artificial Timeline.
• Batman found that most of his secret Safehouses were missing, strengthening his suspicion that the world’s creators had limited knowledge of his preparations.
• Batman used Barry’s Bullet Time field and psychic shielding devices to conceal the group while they discussed how to escape and find the real Superman.
• Batman rejected Boom Tube travel as too risky, and Barry warned that using the Speed Force might leave them lost or erased from history.

Diana proposed summoning a demon to reach the Upside-Down Man, but Batman recognized a safer way to use the Tenth Metal and Psionic Power to contact Deathstroke. The group prepared to send the signal, while Batman withdrew to fortify their position as Joker’s hallucination continued to torment him.

• Diana proposed using a demon summoning ritual to contact the Upside-Down Man and return from the Multiverse level.
• Batman recognized the Tenth Metal Diana carried and suggested resonating it with John’s Tenth Metal shell to reach across the Multiverse.
• Diana worried that the collision would reveal their location, but Batman said their fortified shelter could hold off attackers while Deathstroke responded.
• Diana and Barry trusted Deathstroke to help, and Batman weighed the risks while Joker’s hallucination urged him to let Deathstroke act.
• Batman handed the Tenth Metal items to Diana and went into the darkness to prepare the defenses.

While Su Ming fought The Batman Who Laughs, he used The Upside-Down Man to bring an Ancient God Servant to life and rescue the Justice League from a threat in a hidden world. The Upside-Down Man warned him that Perpetua’s awakening could endanger their Multiverse and that its present advantage would not last until the Last Day.

• Su Ming answered an urgent signal through Tenth Metal and summoned The Upside-Down Man to help fight The Batman Who Laughs.
• Su Ming traded memories with The Upside-Down Man, who gave the Ancient God Servant a living soul and sent it after The Batman Who Laughs.
• The Upside-Down Man revealed that a Multiversal Level being had targeted Su Ming’s allies and used a portal to bring the Justice League back alive.
• The Upside-Down Man explained that the Multiverse occupied the Fourth Dimension and that Hecate should not exist in a universe where it was meant to be the god of magic.
• The Upside-Down Man warned Su Ming that Perpetua might awaken and that the Multiverse’s current state of affairs would not fool the judge at the Last Day.

After the Justice League escaped White Superman and the others, they regrouped in the tentacle-filled battlefield and prepared to deal with The Batman Who Laughs. Batwoman learned that Superman's whereabouts were unknown, while Su Ming steered her toward a plan to capture Mister Mxyzptlk and hinted at powers beyond the Fifth Dimension.

• Diana struck Tenth Metal as Deathstroke opened portals that rescued Batwoman's group from White Superman and the other Justice League.
• Batwoman injected herself with an antidote to quiet Joker's hallucinations and inspected The Batman Who Laughs's armor, which had been reinforced with all ten metals.
• Su Ming arrived and learned from Batwoman that Mister Mxyzptlk had deceived them and Superman was missing.
• Su Ming proposed capturing Mister Mxyzptlk and asked Batwoman to recall how Joker had dealt with him; Batwoman supplied the key word, "Name."
• Batwoman rejected taking Fifth-Dimensional Power, and Su Ming suggested finding Bat-Mite or a Tenth-Dimensional Demon while concealing that he possessed Mister Mxyzptlk's Drawing Board.
• Su Ming asked whether Batwoman had wondered what a "big" demon might be, leaving her to consider the existence of dimensions beyond the fifth.

Batwoman used a backdoor to shut down the Hellbat Armor while Su Ming realized The Batman Who Laughs had used the confrontation to escape and study his opponents. The group uncovered a dead captive inside the armor and turned their attention to the Legion of Doom.

• Batwoman fired a grappling line to reach the Hellbat Armor and installed a device that let him exploit its operating-system backdoor.
• Su Ming and Batwoman concluded that The Batman Who Laughs had used the battle as a test and likely escaped to prepare for another attack.
• Batwoman laughed at Su Ming's joke about Laughing Aquaman, then injected himself with Serum as Joker's imagined shadow confronted him.
• Batwoman remotely dismantled the Hellbat Armor, revealing a dead captive whose life force the armor had drained.
• Su Ming dispersed Ancient God Servant, confirmed The Batman Who Laughs had escaped, and prepared to deal with the Legion of Doom.

After securing the Hellbat Armor, Su Ming negotiated compensation from Batwoman and proposed calling in the Seven Soldiers of Victory to help with the crises facing Earth. The group learned the Xitarians might be Perpetua’s creations and could return from the Dark Multiverse, and Batwoman became their link to the team.

• Batwoman explained that she had disabled the Hellbat Armor’s self-destruct program and identified its dead pilot as someone from Luthor’s Artificial Superman project.
• Su Ming warned Batwoman against using the armor, then demanded Kryptonite or the Anti-Superman Glove in exchange for his help; Batwoman gave him the Five-Point Palm Exploding Heart Technique.
• Su Ming argued that the Justice League should accept payment for its work and urged the group to find allies close at hand rather than split up.
• Batwoman, J'onn, and the others connected the Xitarians to Perpetua’s biological weapons and learned that the Xitarians were seeking a route from the Dark Multiverse to their own.
• Su Ming proposed recruiting the Seven Soldiers of Victory, and Batwoman was identified as the person who could help mobilize them.

Su Ming assigned the Seven Soldiers of Victory to search the Sixth Dimension for Superman and confront the World Forger, while Batwoman took responsibility for dealing with Mister Mxyzptlk. The group also considered Luthor’s plans and the threat of Perpetua, and Barry proposed using the Speed Force to discover who had sealed her inside the Source Wall.

• Su Ming identified the World Forger as the enemy who had deceived the Justice League in the Sixth Dimension and asked Batwoman to send the Seven Soldiers of Victory to find Superman and confront him.
• Batwoman agreed to handle Mister Mxyzptlk, while Su Ming said he would help the Seven Soldiers and bring Oliver with him.
• Diana asked to bring the Titans and Young Justice against the Legion of Doom, and Su Ming warned that Luthor might turn the public against the Justice League over the destruction of the Source Wall.
• Su Ming cautioned the group to keep control of communications and public opinion while the Legion of Doom waited for Perpetua to awaken.
• Barry proposed traveling through the Speed Force to learn who had sealed Perpetua inside the Source Wall, and Su Ming agreed to try after Barry asked for food.

Su Ming gathered the heroes and allies at the Rock of Eternity to prepare for a new mission after Barry returned from the Speed Force severely exhausted with a report about the eagle that created the Source Wall. He announced that the group would travel to another dimension and try to erase it completely.

• Barry returned from the era of the Source Wall's creation and said a gigantic green eagle had turned Perpetua and her Giant Legion into the wall, then collapsed from exhaustion.
• Su Ming left the Justice League to regroup at the Rock of Eternity, where he assembled the Teen Titans, Shadowpact, and the Shame Squad.
• Diana and Kendra discussed whether the eagle might represent Ra, while John warned that eagles had different meanings across religions.
• Su Ming spoke with Damian and Harley, then explained to the gathered group that they were going to another dimension.
• Su Ming announced that the mission was to find a way to erase the dimension's existence completely.

Su Ming brought a small team to the Third Dimension to destroy the Xitarians before Perpetua could use them as troops. After showing the team the devastated Earth and revealing that the Xitarians bred humans as food, he pointed out their stronghold, Miracle Cliff.

• Su Ming explained to Bobo that he planned to wipe out the Third Dimension's Xitarians while Perpetua was still recovering.
• Su Ming led the team through a portal onto the barren Earth of the Third Dimension, where Damian and the others saw the desertified landscape.
• Bobo and Su Ming explained that the Xitarians were Perpetua-created beings who had once invaded Earth-0 through a Father Box.
• Su Ming revealed that the Xitarians had taken about a hundred thousand people from Earth and now bred humans and Xitarians as food.
• Su Ming pointed toward the distant Miracle Cliff, the Xitarians' floating city.