Chapter Summaries

Tony used the Ten Rings to transform his Fungus God Armor into a giant and fought Hulk, but Hulk grew stronger and threw the armor into buildings. Leon returned and found Banner asleep, then warned Tony about the destruction before a tearful woman ran toward Banner.

• Tony activated the Ten Rings and expanded his armor into a giant, then grabbed Hulk and taunted him.
• Hulk broke free, lifted the giant armor, and smashed it into a shopping mall that had been evacuated by the Men in Black.
• Tony and Hulk battled across the block, destroying buildings as Hulk grew stronger and eventually hurled the giant armor away.
• Leon returned and learned from Natasha what had happened, while Tony insisted he could have won and dismantled his armor.
• Leon criticized Tony for the damage and noticed Coulson negotiating with the military; Tony said he had rehired Coulson and other agents for the Avengers.
• A tearful woman pushed through the crowd and ran toward the sleeping Bruce Banner.

Leon helped the Avengers take custody of Banner and Abomination after General Ross tried to reclaim them, then returned to Avengers headquarters and caught up with Tony. The chapter ended with Leon presenting JARVIS with Zhou’s Evolution Keys, which could give birth to intelligent life.

• Leon placed Banner in Betty’s arms and considered using magic to help him control the Hulk and recruiting him for Kamar-Taj’s reserve team.
• General Ross demanded that Tony return Banner to the military, but Betty and Tony objected, and Leon persuaded Ross to accept Avengers supervision of Banner and Abomination.
• Ross left to handle the military’s aftermath, and Yelena suggested that she and Leon discuss the movie after returning to headquarters.
• Tony described the Avengers’ new personnel and clashed with Leon over the liberties taken in the film Iron Man and Superman: Origins.
• Leon and Tony entered Tony’s office, where Leon greeted JARVIS and took out Zhou’s Evolution Keys as a gift for him.

Leon used an Evolution Key to begin JARVIS’s transformation into an intelligent life-form, a process expected to take seven days, and gave Tony a Light Brain containing advanced technological knowledge. Tony gifted Leon a portable armor, then learned that Leon’s travels had exposed him to a world where people could cultivate planets inside their bodies.

• Leon attached the Evolution Key to JARVIS’s core program, starting a seven-day evolution that left JARVIS overwhelmed by a massive data stream.
• Tony inspected JARVIS’s progress and confirmed that its core algorithm was rapidly evolving without damage.
• Leon gave Tony a Light Brain with galaxy-level technical records, including designs for armor upgrades and a Planet-Destroying Cannon that required unavailable materials.
• Tony gave Leon the Portable Fungus God Armor, Mark 9, and promised to build him better armor by his birthday.
• Leon explained that he had traveled to another world to find magical energy and revealed that its power system could cultivate a planet inside someone’s body.
• Tony rolled up his sleeves and asked Leon to show him how to cultivate a planet inside himself.

Leon demonstrated astral projection to Banner and the agents, separating their souls from their bodies so Banner could face the Hulk within him. The chapter left Banner’s soul and the Hulk floating in the Spirit Realm, where Hulk’s attacks could not affect Leon.

• Tony failed to cultivate Genetic Energy despite Leon’s guidance and lamented that he could not use the Starry World’s power system.
• Coulson told Tony that Banner had awakened and firmly wanted to leave, so Tony and Leon went to see him.
• Banner confronted the agents who were keeping him at their facility, fearing that he would transform and hurt people again.
• Leon used astral projection to remove Banner’s soul from his body and then sent the souls of everyone present into the Spirit Realm.
• Leon separated Hulk from Banner’s soul, and Hulk tried to punch Leon before curiously poking his face.

Leon helped Banner understand that he and Hulk shared one soul, then offered to teach him magic so he could manage their transformations. After taking the Tesseract, Leon absorbed its surging energy, and an unfamiliar man arrived at the S.H.I.E.L.D. base to investigate.

• Leon explained that Banner and Hulk were the same soul, and Hulk hurt both of them when he attacked Banner.
• Leon offered to teach Banner Astral Projection at Kamar-Taj so he could control Hulk without separating their souls.
• Leon returned everyone's souls to their bodies and refused to teach the other agents magic, then opened a portal to retrieve the Tesseract.
• Leon tried to channel the Tesseract's power, which flooded his body and began cracking the cube, so he closed the portal.
• Tony worried about Leon's energy levels, while a fat man emerged from a portal and tracked the energy and Leon's magic aura to the base.

Leon used the Space Stone and Time Stone to accelerate the incubation of his Blood Sea Clone, then returned to find Tony confronting Wong and Mordo. After clearing up the misunderstanding, Leon took Wong, Mordo, and Banner to Kamar-Taj to study new magic, while Tony hurried after them.

• Leon placed the Space Stone in his Inner World, where its energy expanded the world and could be converted into the World Power needed to incubate his Blood Sea Clone.
• Leon used the Time Stone to accelerate time by a thousandfold and reduced the clone’s incubation period from sixty years to twenty-one days.
• Leon returned to the vault and stopped Tony and the agents from fighting Wong and Mordo, explaining that they were allies and that he was Kamar-Taj’s Sorcerer Supreme.
• Wong and Mordo said they had come to investigate the powerful energy eruption, which Leon admitted had been caused by the Space Stone.
• Leon took Wong, Mordo, and Banner through a portal to Kamar-Taj to study new magic, and Tony rushed through after them.

Leon returned to Kamar-Taj with Tony and Banner, then prepared to take Wong, Mordo, Tony, and Banner to the Harry Potter world. After Leon crossed over alone to scout ahead, Wong began explaining Asgard to Tony and Banner.

• Leon brought Tony and Banner to Kamar-Taj, where the sorcerers greeted him respectfully and he arranged for them to stay and learn magic.
• Wong and Mordo prepared their luggage after Leon said they would visit another world to study its different magical system.
• Leon explained that he would consult the other universe’s Eternity, and Tony and Banner persuaded him to take them along.
• Leon searched for the Harry Potter world and crossed over alone, leaving Tony and Banner to ask Wong about Asgard.
• Wong solemnly confirmed to Tony and Banner that Asgard existed.

Leon briefly entered the Marvel Zombie Universe, escaped without signs of infection, and disinfected himself in the Resident Evil world before returning to the Marvel Universe. He then traveled again in search of a safe Harry Potter world and arrived at an observatory where a black-robed man stepped forward to kill an old wizard.

• Leon found himself in the Marvel Zombie Universe, froze the city around him, and fled to space after recognizing the danger of the Quantum Virus.
• Leon waited twelve hours, traveled to the Resident Evil world, disinfected himself, and tested for possible infection before returning to his companions.
• Leon spent a month with Ada and Jill, then returned to the Marvel Universe and heard Tony and Banner discuss the planned battle with Asgard.
• Leon entered new travel keywords for Hogwarts and departed for another world.
• Leon arrived at an observatory where a crowd urged a platinum-blond young man to kill an old wizard, but a pale man in a black robe volunteered instead.

Leon arrived on the Astronomy Tower in time to survive Snape’s Killing Curse and briefly interrupt Dumbledore’s planned death. He returned to Kamar-Taj and prepared to travel to the target world with Tony, Banner, Wong, and Mordo.

• Snape cast the Killing Curse at Dumbledore, but Leon appeared and absorbed it without harm.
• Leon introduced himself to Dumbledore, then left the tower to bring his companions over.
• After Leon vanished, Snape used Sectumsempra on Dumbledore, who fell from the tower and died; Harry chased after the departing Death Eaters.
• Leon returned to Kamar-Taj and told Tony that he had found the target world, while Tony clarified that Leon meant Bruce Wayne.
• Banner, Wong, and Mordo prepared to leave with Leon and Tony, and Banner felt safe among them despite his troubles with Hulk.

Leon and his companions crossed into Hogwarts just after Dumbledore’s death, interrupting the mourners with their chaotic arrival. Leon revived Dumbledore with Zhou Divine Spring Water, leaving the stunned crowd to watch the headmaster wake.

• Tony, Wong, Mordo, and Banner crossed from the Marvel Universe with Leon and tumbled into Hogwarts’s central courtyard.
• Harry recognized Leon as the man who had survived Snape’s Unforgivable Curse, while the visitors introduced themselves through a clumsy, undignified arrival.
• Wong tried to restore Kamar-Taj’s dignity, but Leon told him to wait because Hogwarts’s leader, the White Demon King, was still lying dead nearby.
• Leon told Harry that he and Dumbledore had agreed to meet again, then used his mental power to hold back those who tried to stop him.
• Leon poured Zhou Divine Spring Water onto Dumbledore’s lips, and Dumbledore regained color, began breathing, and sat up with a gasp.

Leon revived Dumbledore with Zhou Divine Spring Water, and the Hogwarts students and professors reacted with shock and relief. After the visitors from Kamar-Taj introduced themselves, Dumbledore welcomed them but warned that they had arrived at a bad time.

• Harry embraced the revived Dumbledore and wept with relief as McGonagall announced that the funeral was canceled.
• The young wizards resisted Hagrid's attempt to take them back to their dormitories, so McGonagall allowed them to stay quietly.
• Dumbledore thanked Leon for using Zhou Divine Spring Water to bring him back to life and learned that Leon and his companions came from Kamar-Taj.
• Dumbledore and Leon introduced their companions to each other, and Tony found the Hogwarts names oddly familiar.
• Dumbledore welcomed the Kamar-Taj visitors but said they had arrived at a bad time.

Leon agreed to help Dumbledore defeat Voldemort in exchange for greater access to magical knowledge, then began collecting Voldemort’s Horcruxes with portals. He left Dumbledore holding Ravenclaw’s Diadem while presenting Slytherin’s Locket and Hufflepuff’s Cup.

• Dumbledore explained Voldemort’s growing power and indirectly asked Leon and his companions for help.
• Leon agreed to deal with Voldemort immediately, in exchange for open access to Hogwarts’s library and magical exchanges.
• Leon flew with Dumbledore to the grassland outside Hogwarts, where Tony and the others joined them.
• Leon opened a Mystic Arts Portal into the Room of Requirement and retrieved Ravenclaw’s Diadem, which Dumbledore confirmed was a Horcrux.
• Leon opened portals to a Gringotts vault and the Black family manor, took Slytherin’s Locket and Hufflepuff’s Cup, and closed the portals before Kreacher could react.

Leon destroyed three of Voldemort’s Horcruxes and removed the soul fragment from Harry without harming him. With only the final Horcrux and Voldemort himself remaining, Leon planned to capture Voldemort first.

• Leon destroyed the soul fragments in Ravenclaw's Diadem, the locket, and the cup, restoring the objects intact.
• Leon identified Harry Potter as another Horcrux and dismissed Dumbledore’s plan to explain the danger to him.
• Leon knocked Harry’s soul from his body, removed Voldemort’s malformed soul fragment, and returned Harry safely to his body.
• Dumbledore confirmed the fragment was Tom, and Leon destroyed it with Bolts of Balthakk.
• Leon said that only Voldemort and the Horcrux beside him remained, and declared that they would take down Voldemort first.

Leon opened a portal to Voldemort’s castle, where Voldemort confronted Dumbledore and attacked him, but Leon destroyed the Killing Curse. Leon then brought the fight to Hogwarts, where Hulk beat Voldemort to death; after Leon destroyed Nagini, Voldemort’s final Horcrux, Voldemort crumbled to dust.

• Leon opened a portal to Voldemort’s castle and revealed that Dumbledore was alive, shocking Voldemort and Snape.
• Voldemort fired the Killing Curse at Dumbledore, but Leon slapped the spell apart and broke Voldemort’s wand with the redirected force.
• Leon transported Voldemort, Snape, and the others to Hogwarts, then transformed Banner into Hulk and sent him to fight Voldemort.
• Hulk struck Voldemort down and repeatedly slammed him into the ground until he fell silent.
• Leon brought Nagini to him and destroyed the final Horcrux, causing the battered Voldemort to crumble to dust.

After Hulk killed Voldemort, Hogwarts celebrated and welcomed him as a hero. Watching Hulk enjoy the young wizards’ affection, Banner began to reconsider him and hoped to speak with him.

• The young wizards doubted Voldemort was dead until Dumbledore confirmed Hulk had destroyed him and urged them to cheer for their hero.
• Hulk searched for Voldemort, then turned his attention to Snape until Leon stopped him and pointed out the grateful young wizards.
• The young wizards surrounded Hulk with praise, and Hagrid hugged him while Leon and Tony told Banner that Hulk shared his kind nature.
• Dumbledore explained the situation, and the professors cleared Snape and the Malfoys, who were freed from Voldemort’s control.
• Hogwarts held a feast, where the young wizards fed Hulk roast chickens as Banner tried in vain to stop him eating.

Leon developed a Bloodline Potion that gave its drinker powerful magical talent, allowing Tony, Mordo, Wong, and Banner to gain magic. After leaving them at Hogwarts to continue studying, Leon said farewell to Dumbledore and departed the Harry Potter world.

• Leon brewed a Bloodline Potion from Fantastic Beasts materials and explained that it could grant magical talent comparable to an Ancient Wizard.
• Tony drank a dose of the potion, gained magical power, and agreed to research ways to improve it.
• Mordo, Wong, and Banner also drank the potion and ran off to their dormitories as their new magical power surged.
• Leon told Dumbledore he would leave, while Tony and the others stayed at Hogwarts to learn magic.
• Leon bid Dumbledore farewell and left the Harry Potter world.

Leon returned to Marvel and reunited with Tony, Banner, Wong, and Mordo after their six-month magical studies at Hogwarts. With a match against Asgard’s younger generation four months away, he encouraged the four to rely on their newly gained abilities.

• Leon found that the Time Stone and Space Stone worked again in Marvel, while the Time-Turner and Resurrection Stone did not, and packed the remaining magical items for Mordo to handle.
• Leon traveled back to the Harry Potter world and brought Tony, Banner, Wong, and Mordo back to Kamar-Taj after their exams.
• Tony and Banner earned Outstanding grades in every subject, while Wong and Mordo received lower marks in Potions and Divination despite studying relentlessly.
• Tony and Banner teased Wong about supposedly favoring Professor McGonagall, and Leon ended the joking before Wong could respond.
• Leon told the four that their match against Asgard’s younger generation was four months away, and reassured Banner that Hulk could defeat any of their opponents.

Banner showed Leon, Tony, Wong, and Mordo the Fantastic Beasts he had raised inside Newt Scamander’s enchanted suitcase, and Leon said they could help Banner in the coming challenge against Asgard. Tony misunderstood the challenge as a test of Earth’s standing, rushed off to build stronger armor, and Leon learned that Tony had earned a prestigious award while Wong and Mordo had only just completed Hogwarts’ curriculum.

• Banner explained that Newt Scamander had taught him about Fantastic Beasts and given him an enchanted suitcase where he had raised more than thirty species.
• Banner led Leon, Tony, Wong, and Mordo through the suitcase’s varied habitats, where they saw creatures including Mooncalves, Thestrals, Hippogriffs, and Thunderbirds.
• Leon said Banner’s Fantastic Beasts and Hulk could help him defeat an Asgardian Champion, but Tony framed the challenge as a test of Earth’s strength and hurried back to develop new armor.
• Leon learned that Wong’s account of his encounter with Odin had led Tony to believe the challenge would decide Earth’s right to speak for itself.
• Mordo told Leon that Tony had developed a viable Universal Bloodline Potion formula, published it, and received the Order of Merlin, First Class.
• Wong and Mordo admitted that they had only barely finished Hogwarts’ curriculum.

Leon left Wong and Mordo in charge of teaching Kamar-Taj’s new magic system, then returned to Brooklyn to reunite with Sherry and the Natasha sisters. The night ended in chaos when Yelena interrupted Leon and Natasha.

• Leon reassured Wong and Mordo about their magical ability, then tasked them with teaching the new magic system and preparing a proposal.
• Leon left Banner at Kamar-Taj to study Soul Magic and returned through a portal to Los Angeles and then Brooklyn.
• Leon reunited with Sherry and the Natasha sisters, agreed that Sherry should attend Midtown School, and discussed his plans to attend Columbia University.
• Yelena made the group watch the Superhero Operations Company's film, and Leon later read Sherry her favorite bedtime story.
• Leon joined Natasha in his room after Sherry fell asleep, but Yelena burst in and caused a commotion.

Leon learned that Hydra had kidnapped a pair of Sokovian siblings who joined voluntarily to avenge their parents, killed by Stark-made missiles. He told Natasha to release Wanda and Pietro, give them new identities, housing, and compensation, and explain that Obadiah was responsible and already dead, leaving Leon at home thinking about Wanda.

• Leon asked Yelena about Superhero Operations Company, and she reported worldwide expansion and projected annual merchandise revenue above thirty billion dollars.
• Natasha explained that the Men in Black were deprogramming Hydra's brainwashed captives and monitoring them before returning them to their families.
• Natasha told Leon that two Sokovian siblings had voluntarily joined Hydra after their parents died in Stark missile strikes.
• Leon identified the siblings as Wanda and Pietro and told Natasha not to brainwash them, but to release them and provide housing, identification, and ten million dollars.
• Leon instructed Natasha to tell Wanda and Pietro that Obadiah had sold the missiles and was already dead, and that Leon Stark was Superman.
• Natasha flew to the Sky Fortress, while Leon stayed home thinking that he liked Wanda despite her likely seeing Stark as a demon.