Chapter Summaries

After Grindelwald publicly revealed memories of Li Weide defeating the werewolves, Li Weide became famous and returned to the Moving Castle to prepare his company plans. The Daily Prophet spread the news, and Li Weide woke to a mountain of letters.

• At the Ministry of Magic press conference, Grindelwald projected memories of Li Weide defeating the werewolves and killing the Werewolf King, convincing the crowd of Li Weide's achievement.
• The Minister of Welfare helped Li Weide escape the crowd through his private Floo connection after reporters and Pure-blood representatives surrounded him.
• Li Weide visited the Malfoy Family's potion shop, returned to the Moving Castle, and asked Tom to have the laboratory prepare a company proposal.
• Li Weide declared the intelligent cat, rat, and dog independent individuals and sent them to Toby to choose homes in the castle.
• The Daily Prophet published a moving photograph of Li Weide fighting the werewolves, and letters soon overwhelmed him at the Moving Castle.

Li Weide made Tom sort through his mountain of mail while Dumbledore confirmed to Professor McGonagall that Li Weide had defeated the Werewolf King and explained the danger he faced. Annie arrived at Li Weide’s castle after her aunt released her, revealed that she was an orphan raised by that aunt, and stayed with Li Weide for her safety; Dumbledore and McGonagall then found the castle missing from where he remembered it.

• Li Weide persuaded Tom that sorting letters would teach him to handle relationships and worldly affairs, then left him to read through the mail.
• Professor McGonagall confronted Dumbledore about the newspaper report, and he confirmed that Li Weide had gone alone to the werewolf camp and defeated the Werewolf King.
• Dumbledore explained that Li Weide had risked his life to protect others, moving Professor McGonagall and prompting her to ask to visit him.
• Annie came to Li Weide after her aunt released her, explained that her parents were gone and her aunt had raised her, and learned that Li Weide had spoken with her aunt.
• Li Weide told Annie to stay at his castle for protection, and Tom offered to teach her the Magic of Love if she helped him finish sorting the letters.
• Dumbledore and Professor McGonagall reached the place where Dumbledore remembered Li Weide’s castle, but found only open land.

Li Weide appointed Andrews to run a Ministry-backed company, while Dumbledore and Professor McGonagall searched for Li Weide’s hidden home. After Miravia killed Camilla, she fought a mysterious vampire who escaped just as Dumbledore and the others arrived.

• Li Weide offered Andrews the leadership of a new company supported by the Ministry of Magic, and Andrews eagerly accepted.
• Tom challenged Li Weide’s description of the deal as a great collaboration, and Li Weide explained how shared benefits would help everyone involved.
• Dumbledore failed to locate Li Weide’s home and decided with Professor McGonagall to send a letter through Tom.
• Miravia killed Camilla with her silver sword, and she and Nagini prepared to return home.
• A blood-red-mist-shrouded attacker ambushed Miravia, fought her, then escaped without leaving magical traces.
• Nagini, Dumbledore, and Professor McGonagall reached Miravia, who confirmed the attacker was a vampire.

Miravia accidentally revealed Li Weide’s secret Moving Castle to Dumbledore, who visited and learned why Li Weide had made his home fly. Dumbledore accepted the castle and reassured Li Weide that it broke no laws, while Tom watched the encounter and served him an ice pop.

• Miravia let slip that Li Weide’s castle had flown away, so Nagini brought her and the professors to visit him.
• Deep underground, the vampire leader ordered the vampires to hide in their coffins until further notice.
• After Tom and Annie finished sorting letters, Dumbledore arrived at the Moving Castle with McGonagall, Nagini, and Miravia.
• Li Weide showed the professors the castle and explained that he wanted a safe home where his friends could gather and support one another.
• Dumbledore decided not to criticize Li Weide and concluded that the flying castle violated no laws.
• Dumbledore asked Tom for an ice pop, and Li Weide ordered Tom to get him one.

After Miravia accidentally revealed the Moving Castle to Dumbledore and McGonagall, Li Weide confronted her about treating the organization’s safety too lightly. Miravia accepted his criticism and began reflecting on how she needed to change her mindset.

• Dumbledore suggested that Li Weide let Nicolas Flamel see the Moving Castle, and Li Weide considered the idea.
• Nagini explained that Miravia had revealed the Moving Castle after fighting off an ambushing vampire, and Li Weide first asked whether she was hurt.
• Miravia apologized and offered to leave, but Li Weide reminded her that the castle’s secret belonged to the whole organization and that its members had to share responsibility.
• Li Weide warned Miravia to take their revolutionary cause and the safety of their comrades seriously, then told her to stay and learn from her mistake.
• Miravia confided to Nagini that she felt ashamed and immature, and Nagini agreed that she needed to change her mindset.

Li Weide visited Zhang San and learned how China's Wizarding World divided between secretive families practicing Daoist Magic and Ministry wizards using Western magic. He left with a booklet of basic Daoist Magic after discovering it required a Spiritual Root.

• Li Weide disguised himself to visit Zhang San, then revealed his identity and asked about his homeland.
• Zhang San explained that Zhang Qiming had failed to enter the Ministry of Magic because he struggled with foreign languages.
• Zhang San described the rival factions in China's Wizarding World and explained that he had been expelled from his hidden family for studying Western magic and marrying Mrs. Zhang.
• Li Weide asked whether the reclusive families' elders had achieved immortality, and Zhang San said they merely lived a long time.
• Li Weide asked to study Daoist Magic, and Zhang San gave him a booklet while explaining that it only worked for people with a Spiritual Root.

The chapter traced the growth of particle physics from early atomic theory to the discovery and classification of hadrons, then explained Gell-Mann’s quark model and the evidence that protons contained internal structure. Just as the model gained support, a Chinese physicist challenged its symmetry by arguing that three quarks were not enough.

• Physicists discovered hundreds of hadrons and sought a more orderly classification, prompting Gell-Mann to propose a symmetrical particle arrangement and predict the Omega particle.
• Experiments discovered the Omega particle in 1964, confirming Gell-Mann’s prediction and strengthening his standing in hadron physics.
• Gell-Mann proposed up, down, and strange quarks and showed how they could combine into mesons and baryons, publishing his quark theory in 1964.
• Experiments found internal structure in protons but could not directly confirm that the structure consisted of quarks.
• As evidence for the quark theory accumulated, a Chinese physicist argued that three quarks were not symmetrical.

Li Weide meditated to investigate the sources of ordinary magic and Ancient Magic, then arranged experiments and prepared his new company with Andrews. After emerging from the laboratory shortly before school began, he rushed to Miravia and asked her to help with an experiment, but she grabbed him by the collar when he told her to undress.

• Li Weide studied Daoist Magic through meditation and discovered that magic power came from a hole in the soul, while Ancient Magic and absorbed Pure Magic Power affected his brain.
• Li Weide planned to test his theories on captured Dark Wizards and Muggle death-row inmates.
• Andrews finalized plans for the new company, merged the Malfoy and Shafiq businesses into it, and chose the name Hydra Corporation.
• Tom introduced Andrews to Toby’s many artificially created House-elf children, and Toby selected two hundred to work for the company.
• Two days before school began, Li Weide emerged from his laboratory and hurried Miravia there to examine her Ancient Magic talent, but she lifted him by the collar after he told her to take off her clothes.

Li Weide tried to obtain Miravia’s blood for a magical experiment, but she suspected he intended to clone her and destroyed the sample. When Tom proposed using a Gender-Bending Potion to let Li Weide examine her, Li Weide forced Tom to drink the potion instead, leaving him unable to move as its effects began.

• Miravia grabbed Li Weide, but he vanished in a cloud of mist, leaving a substitute Paper Figurine while he reappeared behind Tom.
• Li Weide asked Miravia to lie on his experiment table and remove her armor, then persuaded her to give him a drop of blood as an alternative.
• Miravia suspected Li Weide wanted to clone her like Toby’s children, took back her blood, and destroyed the sample with Fiendfyre.
• Tom revealed a Gender-Bending Potion Li Weide had developed, and Miravia offered to let Li Weide examine her if he drank it.
• Li Weide seized the potion, immobilized Tom, and forced half the bottle down his throat.

Tom and Li Weide were temporarily transformed into girls, and Li Weide examined Miravia to learn more about Ancient Magic. He later described his discoveries about Spiritual Roots, including a way to use Ancient Magic to turn Muggles into wizards, while keeping the method secret.

• Tom despaired over losing his male body, and Nagini and Annie tried to coax him into eating and changing clothes.
• Li Weide examined Miravia's Ancient Magic, Spiritual Root, soul, and body, finding that her Ancient Magic seemed more naturally ingrained and her Spiritual Root was larger than his.
• Li Weide explained that Ancient Magic could expand a Spiritual Root's opening and strengthen a Dark Wizard's magic, though he was still investigating the risks and limits.
• Li Weide revealed that he had used Ancient Magic to turn several death-row Muggles into wizards.
• Li Weide decided to keep the discovery secret because making it public could cause him serious trouble.

Li Weide dealt with Tom’s punishment, learned new methods involving Spiritual Roots and talismans, and returned to Hogwarts with his animal companions. As Hydra Corporation opened in Godric’s Hollow, Fremont Potter and Euphemia Potter arrived for a job interview.

• Li Weide and Miravia teased Tom about his transformation and photographs, then Li Weide gave him a potion to change back after Tom admitted his mistake.
• A recovered vampire left his underground lair to search for the other Blood Progenitors and retrieve their Blood Hearts.
• Li Weide visited Nicolas Flamel and Zhang San, learned how lightning could refine Spiritual Roots, and gave Zhang Qiming soul power that helped him master English.
• Zhang San sent Li Weide a translated book on talismans, which Li Weide studied aboard the Hogwarts train while Tom’s Cat’s trio shared snacks with the other passengers.
• Li Weide let the trio choose their Hogwarts Houses, and they happily swarmed around Hagrid as he invited them to Gryffindor.
• Andrews oversaw preparations at Hydra Corporation in Godric’s Hollow as Fremont Potter and Euphemia Potter arrived for an interview in the Technical Department.

The Potter couple joined Hydra Corporation after Andrews offered them a position valuing their inventive skills while letting them retain their shampoo formula and most of its profits. At Hogwarts, Li Weide learned of their hiring, reflected on Harry’s improved prospects, and watched Hagrid rescue Jerry from an owl before Tom unexpectedly defended Li Weide’s friends.

• Andrews welcomed the Potter couple to Hydra Corporation and explained that the company wanted their talents, not ownership of their shampoo formula.
• The Potter couple agreed to join the Technical Department, received a laboratory, and completed their onboarding that day.
• Li Weide read Andrews’s report and instructed him to direct the Potters’ research toward Potions.
• At breakfast, an owl mistook Jerry for food and carried him and Tom Cat into the air until Hagrid pulled the owl down and rescued Jerry.
• Tom asked Li Weide why he had not checked on his friends, prompting Li Weide to tease Tom about acting strangely.

Li Weide secured permission to enter the Restricted Section and pursue early exams, then discussed Basilisk breeding and Slytherin’s lost wand with Slytherin. Slytherin decided to seek the wand’s history in America and investigate Tom’s ancestry.

• Li Weide obtained a year-long Restricted Section pass from Professor Slughorn and learned he could apply to take the O.W.L.s and N.E.W.T.s early.
• Li Weide heard that seven adult basilisks had been bred and agreed to find someone to take over Slytherin’s Basilisk work, suggesting Nagini as a possible candidate.
• Li Weide told Slytherin that his wand had belonged to Gormlaith Gaunt and had been buried by Isolt Sayre, where it gave rise to a healing snakewood tree.
• Li Weide recounted how Isolt’s aunt killed her family, how Isolt escaped and founded Ilvermorny, and how she married the Muggle James Steward.
• Slytherin decided to travel to the United States to find the snakewood tree, look for Isolt’s descendants, and investigate Tom’s Muggle father.

Li Weide completed his O.W.L.s and N.E.W.T.s exams with Outstanding grades in every subject, then accepted Hogwarts’s offer of a teaching assistant title and a private office and laboratory so he could keep studying. As Hydra’s members gathered to celebrate, Miravia remained bored at the Moving Castle.

• Nagini accepted Li Weide’s request and completed the handover with Slytherin.
• Li Weide arranged for Hydra Corporation employees to sort his fan mail and ordered daily physical training for Hydra’s core members; Tom and Annie proposed a school gym instead.
• Li Weide asked Dumbledore for a Hogwarts gym, and the school approved a room while Hydra Corporation began making equipment.
• Li Weide completed his O.W.L.s and N.E.W.T.s written and practical exams, earning Outstanding grades in every subject.
• Dumbledore offered Li Weide a teaching assistant position with a private office and laboratory, and Li Weide accepted so he could continue studying.
• Tom and the other Hydra members waited for Li Weide after the exams, while Miravia complained of boredom at the Moving Castle.

Miravia left the Moving Castle to travel abroad, while Li Weide settled into a research routine and advanced his studies. In the United States, Slytherin reunited with his Serpentwood Wand’s tree, then encountered Cain, who revealed himself as Abel, the world’s first vampire, and fought him over Slytherin’s stolen body.

• Miravia grew bored and took Draaman east to leave Britain and visit other countries.
• Li Weide moved into a Hogwarts room with an expanded laboratory, began a strict daily schedule, and made progress in his training and research.
• Slytherin found Ilvermorny’s Serpentwood tree, awakened his wand, and received a branch to make a wand for his descendant.
• The Serpentwood tree blossomed as Slytherin departed, and he set off for Britain with the branch.
• Slytherin met Cain, recognized his own face and body in him, and attacked after accusing him of stealing and turning his body into a vampire’s.
• Cain evaded Slytherin’s Killing Curse, revealed that his real name was Abel, and called himself the world’s first vampire.

Slytherin fought Cain, the vampire possessing his stolen body, and nearly fell to a trap before Miravia intervened. Cain escaped, while Miravia collected his remains to take to Li Weide, suggesting he might help Slytherin get a new body.

• Slytherin used modern Dark Arts to pressure Cain, but Cain adapted quickly and began to overpower him with his greater magical strength.
• Cain transformed into Blood Bats and attacked Slytherin with a barrage of Killing Curses, then ambushed him after he Apparated.
• Slytherin’s protective watch blocked Cain’s killing spell, but Cain provoked him and sent thorny vines toward his back.
• Miravia struck Cain with a Killing Curse empowered by Ancient Magic, blasting apart half his body; Cain fled into the sewers.
• Miravia concealed herself and Slytherin from arriving Ilvermorny professors, then deduced Cain had controlled Slytherin’s body remotely.
• Miravia gathered Cain’s remains for Li Weide and suggested he might grow Slytherin an untainted body.

Miravia pursued Cain after he turned Slytherin’s stolen body into a vampire, while Li Weide prepared to help Slytherin and left Hogwarts to join her. Li Weide headed for Miravia’s rendezvous point, and Dumbledore watched him fly away with concern.

• Miravia took Slytherin’s remains and pursued the injured Cain to prevent him from feeding on innocent people.
• Li Weide examined the Hogyoku ring he had made and discussed its abilities with Tom.
• Tom told Li Weide that Cain had stolen Slytherin’s body, turned it into the first vampire, and been badly injured by Miravia’s ambush.
• Li Weide asked Tom to store Slytherin’s remains in his lab, then left Hogwarts on Alduin to help Miravia.
• Li Weide used the Hydra Ring to locate Miravia’s rendezvous point, while Dumbledore watched him disappear into the sky.

Cain discovered that Progenitor Mobius had been killed and drained of his blood and magic, then vowed to hunt the culprit. Meanwhile, Li Weide and Miravia tracked Cain to the battlefield and used an Eastern Scrying Spell to glimpse the red mist he had become.

• Cain found Mobius's ruined resting place and realized another vampire had killed and drained him, taking his Blood Heart.
• Cain guessed that one of the remaining Progenitors was responsible, burned Mobius's corpse, and buried the chamber.
• Li Weide met Miravia at a bell tower, and she explained how her enhanced Killing Curse had shattered the vampire she fought.
• Li Weide and Miravia examined the battlefield outside Ilvermorny, but Miravia's tracking spells repeatedly lost Cain's trail.
• Li Weide used an incomplete Eastern Scrying Spell on a basin of water and produced a blurry image of Cain flying as red mist.

Li Weide and Miravia used an alchemical device to track Cain and Apparated to his location, where they discovered his opponent was Sebastian Saru, Miravia’s old friend. Sebastian revealed that he had become a vampire to cure his sister Annie’s curse, just as the confrontation with Cain was about to begin.

• Li Weide improved his Scrying Spell with an alchemical device and devised a way to Apparate to the place he was observing.
• Li Weide and Miravia watched Cain stop at a wilderness campsite and prepare to confront a man in a cowboy hat.
• Cain accused the man of killing the other blood progenitors, and the man said he had done it to become strong enough to protect himself after Mobius harmed his sister.
• Li Weide and Miravia Apparated beside Cain, and Miravia recognized the young man as Sebastian Saru, her close friend from the past.
• Sebastian confirmed that he had become a vampire to cure Annie’s curse.

Miravia confronted Sebastian over the innocent lives he had taken and the way he had transformed Annie, while Cain tried to exploit their divided loyalties. Li Weide revealed his identity and attacked both vampires alongside Miravia, leaving Sebastian facing her Killing Curse.

• Miravia accused Sebastian of killing many innocent people and turning Annie into a vampire, arguing that Annie had lost her former self.
• Cain mocked Miravia and Sebastian, then attacked Li Weide with corrosive blood mist, but Li Weide neutralized it without using his wand.
• Cain recognized Li Weide as the vampire hunter who had killed two Blood Progenitors and developed tools against vampires.
• Miravia chose to fight Sebastian, and Li Weide offered to handle Cain while she confronted her former friend.
• Li Weide attacked Sebastian with Palm Thunder and Cain with lightning, while Miravia also struck at Cain with Ancient Magic.
• Sebastian blocked Li Weide's lightning with blood mist, but Miravia's Killing Curse reached him and caught him by surprise.