Chapter Summaries

After Fudge and Umbridge were removed from power, Kayson learned that Filch had become Hogwarts’ Head of Moral Education and took charge of expanding his office. The renovation began after Kayson cleared out Filch’s cramped workspace and joined it to a neighboring classroom.

• Kayson told the Weasley twins that their Ministry summons could help them take leave from school, then said they would soon hear news about the Ministry.
• The Daily Prophet reported that Fudge had died, Gedir’s family had been confirmed as Death Eaters, and Barty Crouch had become Minister for Magic and declared war on Voldemort and the Death Eaters.
• Snape told Kayson that Filch had become Head of Moral Education, and Dumbledore asked Kayson to expand Filch’s office.
• Kayson inspected Filch’s office, moved his desk, bed, and confiscated contraband, and packed away Filch’s unused torture instruments.
• Kayson expanded the office into a neighboring classroom, added a bedroom and washroom, and improved the windows, ventilation, flooring, and decorations.

Kayson watched the Wizengamot acquit the Weasley twins, then offered to teach them dangerous magic so they could get expelled or granted leave from school. He led them into a glass room filled with candles, leaving them on the brink of whatever perilous lesson he had planned.

• Kayson gave Filch a Director of Moral Education sign and told him to come by if he needed anything.
• Kayson attended a Wizengamot hearing where Amelia Susan Bones presided over the cases concerning Fudge and Umbridge’s deaths, and the Weasley twins were acquitted.
• The Weasley twins rejected Kayson’s offer of money, insisting that failing to secure leave from school wounded their dignity.
• Kayson invited the twins to his office for several nights of dangerous lessons, promising they might become Enchantment Masters.
• The twins arrived at Kayson’s bedside after midnight, and he took them to a glass room with candles beneath its floor.

Kayson taught the Weasley twins how to upgrade their wands through alchemy and showed them how an Arcane Crafting Table worked. George successfully made a staff and transformed a Crafting Table, leaving Kayson excited to spread Minecraft’s power further.

• Kayson warned George and Fred that advanced mystical alchemy could cause explosions or irreversible environmental contamination, then agreed to teach them the basics.
• Kayson showed the twins how to place a wand and iron wand caps in a Crafting Table and fuse them by striking the table with a hammer.
• George created a staff that retained his wand’s magical function, and he and Fred realized how impressive Kayson’s alchemy was.
• Kayson asked George to use Transfiguration on a Crafting Table, and George turned it into dark redwood padded with green silk.
• Kayson excitedly embraced the twins, then composed himself and told Fred to try the transformation next.

Kayson taught Fred and George how to make Magic Lenses, which let them scan elements and begin sensing the world’s primal essence. After they discovered the lenses could not scan everything, Kayson explained that they would need to learn and combine elements, then shrank the lenses into monocles they could wear.

• Under Kayson and George's supervision, Fred made his own wand and transfigured an Arcane Crafting Table.
• Kayson found Magic Crystal Shards and taught Fred to craft a Magic Lens using a glass pane, gold ingots, and two shards.
• Fred and George used their Magic Lenses to scan Kayson and explore his office, repeatedly asking what the displayed “MC” meant.
• Kayson told the twins they could not scan some things and explained that they needed to keep learning and could combine elements by guiding them out of their bodies.
• When the twins complained that the Magic Lenses were too large to carry, Kayson shrank them into monocles.

After Harry awkwardly asked Kayson about learning magic, Kayson mistakenly concluded that Harry had fallen in love. Draco then asked Kayson to rescue his parents from Voldemort, and the chapter ended with Kayson teleporting Mr. and Mrs. Malfoy to Hogwarts while Voldemort confronted him.

• Harry asked Kayson whether he could learn magic from him, then fled with Ron, Neville, and the twins after Kayson agreed to teach him if he found something suitable.
• Kayson overheard Harry's friends talking and concluded that Harry had fallen in love with someone.
• Draco told Kayson that Voldemort was at Malfoy Manor with Mr. and Mrs. Malfoy and asked what he would do if a Slytherin pleaded for help saving their parents.
• Kayson secretly entered Malfoy Manor and found Voldemort dining with Mr. and Mrs. Malfoy.
• Kayson teleported Mr. and Mrs. Malfoy and part of the dining table to his Hogwarts office, revealing himself to Voldemort.

Kayson confronted Voldemort alone inside a stasis field and fought him with a mix of runic magic, enchanted weapons, and brute force. As Voldemort closed in with a dangerous attack, Kayson welcomed the chance to take him down even if he died too.

• Voldemort surrounded Kayson with the Death Eaters, but Kayson trapped himself and Voldemort inside a stasis field that stopped their attacks from reaching the outside.
• Kayson assaulted Voldemort with gravity magic, Wither Skeleton Skulls, and mechanical arms, while Voldemort evaded the attacks and redirected an Avada Kedavra that destroyed one mechanical arm.
• Kayson sent a wall of fire and wind blades at Voldemort, who hid inside a durable coffin that corroded several of Kayson's mechanical arms.
• Voldemort emerged from the coffin and tried to kill Kayson, but Kayson dodged the curse and punched him hard enough to send him flying.
• Voldemort turned into flame and rushed toward Kayson, who shouted that killing Voldemort would be a huge win even if he died as well.

Kayson dragged Voldemort toward a growing corrupted rift while fighting off his spells inside the stasis field. Outside, Barty Crouch Jr. struck a deal with Dumbledore and Grindelwald to break the field, leaving Dumbledore testing it with a Time-Turner.

• Kayson created a corrupted rift and tried to drag Voldemort into it, but Voldemort escaped his grip and attacked him with Fiendfyre.
• Kayson turned Voldemort’s Killing Curse against him, but Voldemort severed his own wrist to dodge the attack and continued trying to escape.
• Barty Crouch Jr. warned Dumbledore and Grindelwald that Kayson would die if they did not help, then negotiated an Unbreakable Vow to protect Voldemort and his companions while restraining Kayson.
• Dumbledore agreed to Barty Crouch Jr.’s terms, formed the contract with him, and tested the stasis field by throwing a Time-Turner at it.

Kayson helped Dumbledore and Grindelwald escape Voldemort, then slowed the corruption rift and returned with them to Hogwarts. The Malfoys planned to flee to America, while Kayson promised to remember to deal with the rift later.

• Voldemort shattered Kayson's stasis field, unleashed Fiendfyre, and escaped as the Death Eaters fled.
• Kayson slowed the corruption rift with a stronger stasis field, but admitted he did not know how to destroy or drain it.
• Grindelwald used Voldemort's severed hand to remove the curse on the Defense Against the Dark Arts professor position, and Dumbledore brought the three of them back to Hogwarts.
• Draco asked about Kayson's missing mechanical arms, and Kayson gave him a protective amulet after Narcissa explained that Bellatrix had found the family through bloodline divination.
• Lucius and Narcissa said they planned to hide in America, where the Ministry of Magic could better keep Voldemort's followers out.

Kayson researched how to make Paradox Material and discovered that he needed an Abyss Fragment. After a failed attempt to build an Abyss Portal, he created one through infusion and discussed the Weasley twins’ plans with Dumbledore.

• After the Malfoys left, Dumbledore stayed in Kayson's alchemy office and reminded him about the rift at Malfoy Manor.
• Kayson chose to research Paradox Material, unlocked entropy by studying flames and Wither Skeleton Skulls, and combined it with order to reveal the recipe.
• Kayson tried to build an Abyss Portal but stopped when he sensed that using his power to force it open would bring down a great terror.
• Kayson learned he could make an Abyss Fragment through infusion, asked a House-elf for rotten blood, then combined it with an Ender Pearl and four iron ingots at the infusion altar.
• Kayson told Dumbledore that the Weasley twins planned to get suspended so they could take a year off and build capital as Diagon Alley property prices fell.

Kayson and Dumbledore destroyed the corruption rift in Malfoy Manor, then returned to Hogwarts and found the Weasley twins experimenting in the kitchen. The twins explained their search for an Essence that could imitate weakness, and the chapter left them discussing their research and Skiving Snackboxes.

• Kayson crafted Paradox Material, and he and Dumbledore used it to destroy the corruption rift at Malfoy Manor.
• Kayson and Dumbledore returned to Hogwarts and went to the kitchen for food.
• Kayson and Dumbledore found the Weasley twins scanning food and ingredients with monocles while House-elves carried trays around them.
• The Weasley twins said they were testing whether abundant life and a little death could create an Essence like weakness, but their experiments left injuries that could not be healed.
• Dumbledore connected the twins' idea to replacing Skiving Snackboxes, and Kayson blamed Snape's advanced lessons for the strange toxins young wizards learned about.

Kayson helped Fred and George begin crafting an infusion altar, then bought a shop in Diagon Alley before returning to supervise them. When George tried Kayson’s trick of placing a block beneath himself to climb, the block clipped through his leg and left him badly wounded.

• Kayson gave Fred and George crafting guides and materials, and they began making the infusion altar’s components.
• Kayson traveled to Diagon Alley and bought a well-located shop for 1,200 gold Galleons, then let the previous owner and his family leave with the shop’s goods.
• Fred and George used small blocks to assemble the huge infusion altar in Kayson’s office.
• George tried placing a block beneath himself to climb, but it clipped through his leg and left him with a serious wound.

Kayson taught Fred and George how to build enchantment tables, then guided them through preparing their first Sky Rings. The chapter ended with an unexpected explosion as the twins tried to channel Wind Essence into the Rune Matrix.

• Kayson healed George after a failed jumping demonstration and set up scaffolding so the twins could work safely.
• Fred and George built two enchantment tables, and Kayson had them dig out the Rune Matrix to reveal that it floated unsupported.
• The twins transformed the Rune Matrices into enchantment tables and learned a recipe for making Sky Rings.
• Kayson gave Fred and George two rings and instructed them to place the ingredients on the altar and channel Wind Essence into the Rune Matrix.
• A terrifying explosion thundered through the room as the enchantment began.

After George’s enchanting table accident produced spellwave slime, Kayson discovered that transfiguring bookshelves could create Arcane Manuals. The Weasley twins volunteered to handle the spellwave cleanup while Kayson went to bed, and he agreed to request leave for them.

• Kayson found George injured beside the exploded enchanting table and made him recover in a healing-potion shower while explaining that the purple residue was spellwave.
• Kayson reflected that the inseparable twins could inherit his Arcane Manual and realized wand transfiguration might make more of them.
• George and Fred transfigured two bookshelves into Arcane Manuals and reacted with disbelief as they examined the books.
• The twins volunteered to clean up the spellwave, and Kayson let them use anything in his office that they needed.
• Kayson went upstairs to sleep after agreeing to request leave for the twins the next day.

Kayson found the Weasley twins clearing spellwave contamination with machines they had built overnight, then visited Professor McGonagall and became caught between her and Grindelwald in a dispute over teaching students lethal Dark Magic. The argument remained unresolved as Grindelwald challenged McGonagall’s objections and Kayson made a guilty aside about Neville’s violent use of the Levitation Charm.

• Kayson saw the Weasley twins dismantling spellwaves with their newly built machines and gave them signed leave notes.
• Kayson went to Professor McGonagall’s office, where Grindelwald accidentally struck him with the door and then left without stopping.
• Professor McGonagall told Kayson that she and Grindelwald disagreed over Grindelwald teaching fifth-year students Avada Kedavra and the Cruciatus Curse.
• Grindelwald returned and argued that students needed powerful spells to defend themselves against Death Eaters.
• Grindelwald questioned whether the Killing Curse was more brutal than killing with the Levitation Charm, while Kayson guiltily recalled Neville using it against Draco Malfoy.
• Kayson remarked that Arthur Weasley also tore enemies apart with magic, and Professor McGonagall and Grindelwald both told him to shut up.

Kayson and Professor McGonagall argued with Grindelwald over his decision to teach students the Killing Curse, which McGonagall believed would turn them into murderers. Grindelwald stayed at Hogwarts after Kayson accidentally challenged whether he had broken Voldemort’s curse, and McGonagall asked Kayson to find out what Dumbledore knew about the lessons.

• Professor McGonagall condemned Grindelwald for teaching the Killing Curse, and Kayson agreed that young wizards should not be trained to kill without hesitation.
• Grindelwald threatened to resign, but he stopped and returned after Kayson questioned whether he had broken Voldemort’s curse; McGonagall said his pride would keep him teaching.
• Professor McGonagall explained that casting the Killing Curse required pure killing intent and argued that teaching it would turn students against humanity.
• Professor McGonagall asked Kayson to ask Dumbledore why he had allowed Grindelwald to teach the curse.
• Kayson joked about blowing up Dumbledore’s office, and McGonagall suggested he could try Transfiguration instead of using the Killing Curse.

Kayson carried Dumbledore’s claim that he knew about Grindelwald teaching the Unforgivable Curses to Professor McGonagall, who blasted Dumbledore’s tower out of the castle. Dumbledore ended up sleeping on Kayson’s sofa and tried to persuade him to help repair the tower.

• Kayson asked Dumbledore whether he had known Grindelwald was teaching the Unforgivable Curses, and Dumbledore claimed that he had.
• Kayson wrote down Dumbledore’s words and delivered them to Professor McGonagall after class.
• Professor McGonagall went to Dumbledore’s office and blasted his tower onto the lawn.
• Dumbledore arrived at Kayson’s office by boat and slept on the sofa after Kayson gave him bedding.
• Dumbledore offered Kayson breakfast and asked him to repair the tower, but Kayson pretended not to remember the meal and refused to help.

Kayson rebuilt the Headmaster’s Office tower and repaired the gargoyle’s magical control circuit after discovering it conflicted with a pipe he had designed. He and Dumbledore tested the new password and went inside for a drink.

• Kayson rebuilt the Headmaster’s Office tower while Dumbledore offered impractical suggestions about pipes for sending candy.
• Kayson found Dumbledore trying to investigate the malfunctioning gargoyle and learned its magical control circuit had been disrupted.
• Dumbledore explained that he still thought of Kayson as a reckless novice despite his reputation as an alchemy genius.
• Kayson traced the problem to a conflict between the gargoyle’s control circuit and his pipe design, then adjusted the circuits with alchemy.
• Dumbledore set the gargoyle’s password to “jianbing,” and Kayson tested it before joining Dumbledore in the office for a drink.

Dumbledore told Kayson that Arthur Weasley had been injured by Voldemort’s snake while guarding the prophecy orbs, then asked him to disable the charm protecting Harry’s mind so Harry could learn Legilimency and gather intelligence. Kayson agreed, but Dumbledore insisted Harry must not be told why until he had learned to defend his mind.

• Dumbledore explained that Arthur Weasley had been bitten by Voldemort’s snake during a weak moment in the Department of Mysteries’ defenses, but had recovered.
• Dumbledore proposed removing the magic in Harry’s beacon charm and teaching Harry Legilimency so they could monitor Voldemort through the soul fragment in Harry’s mind.
• Kayson objected to Snape teaching Harry and suggested a trusted teacher such as Lu Ping or Sirius instead.
• Dumbledore decided Gellert would teach Harry Legilimency, while Kayson would remove the charm’s protective magic first.
• Kayson agreed to disable the charm, and Dumbledore warned him not to explain the plan to Harry until Harry could defend his mind.

Kayson brought Harry to Grindelwald, who explained how Voldemort’s curse connected their minds and persuaded Harry to learn Legilimency. Harry began training, and the chapter ended as the holiday season arrived under the shadow of Voldemort’s activity.

• Kayson summoned Harry and brought him to Grindelwald’s office using Enderman’s Stand.
• Grindelwald explained that Voldemort’s curse let him access Harry’s memories and that learning Legilimency could help Harry gather intelligence in return.
• Harry said his scar had stopped hurting since Kayson gave him the beacon charm, and Kayson disabled its soul-isolation function to demonstrate the connection.
• Grindelwald warned Harry that learning Legilimency would be painful, and Harry firmly agreed to begin.
• The holiday season arrived as Voldemort and the Death Eaters cast a shadow over England, and Kayson wrapped gifts for the students.

Kayson finished sending Christmas gifts to the Hogwarts houses and visited the Black family manor, where he joined the others in a game. Cedric and the Weasley twins then summoned him upstairs to see a Christmas surprise they had prepared.

• Kayson sent gifts to the Gryffindors, Hufflepuffs, and Ravenclaws, then decided to send the prepared gifts to Slytherin as well.
• Kayson went to the Black family manor with his proposal for rebuilding his mechanical arm and found the Diggorys among the gathered wizards.
• Sirius and Lupin invited Kayson to join their Dungeons & Dragons game, and he admitted he wanted to play because he felt jealous.
• Mrs. Weasley told Kayson that Dumbledore and Grindelwald were preparing specialty dishes together in the kitchen.
• Cedric and the Weasley twins approached Kayson and said they had prepared a Christmas surprise for him upstairs.