Chapter Summaries

Slytherin Academy held its first monthly exams under Anduin’s new system, while Hog caught Hader Chris cheating with an enchanted parchment. At the monthly meeting, Anduin began announcing results and warned that rule-breakers would be punished, leaving Hader’s exposure imminent.

• Anduin arranged the exams across the Common Room and borrowed classrooms, with older students helping supervise practical tests.
• The young wizards began the monthly exams, and Anduin let Hog monitor the Common Room for cheating.
• Hog reported that Hader Chris had cheated in multiple subjects using an enchanted parchment, and Anduin secretly watched him without intervening.
• Anduin continued the afternoon practical exams as planned while Hader acted as though he had not been caught.
• Subject Representatives marked the papers the next morning, and Anduin received the final results before the monthly meeting.
• Anduin opened the meeting by listing the results, awards, and rule-breaker punishments on the agenda.

Anduin announced the school’s exam and Comprehensive Score results, praised the top students, and awarded the third-years and individual winners. He then began the disciplinary report, calling out repeat rule-breakers and ordering the second-, third-, and fourth-years to stand as he demanded to know why their classmates had not helped them.

• Anduin announced that every student passed the exams and that the third-years had the highest percentage of grades at E or above.
• Anduin named the third-years the school’s top year in Comprehensive Score and announced Eeyup, Jennie, and Mona as the top three individuals, with Joey placing fourth.
• Anduin rewarded the third-years with a Humanoid Target and an Empty Dungeon for practice, while Mona and Jennie chose his training and Eeyup chose Phase Boots.
• Anduin began the disciplinary report and reprimanded Hader Chris, Gal Murray, and Dante Mulunga for repeatedly walking three abreast in the corridor.
• Anduin ordered the second-, third-, and fourth-years to stand and challenged them for failing to help their classmates stop breaking the rules.

Anduin imposed collective punishment on Slytherin students to make them support one another in following the rules. He then exposed Hader Chris for cheating and asked what he had to say, leaving Hader trembling and asking to be punished alone.

• Anduin rebuked the second-, third-, and fourth-years for failing to help their rule-breaking classmates and made them recite Slytherin's Three Principles.
• Anduin announced the Joint Responsibility System, under which repeated rule-breaking brought punishment on the offender's year group, same-gender students, or the whole house.
• Anduin ordered the second-, third-, and fourth-years to complete fifty push-ups, then reminded them that helping companions obey the rules was their responsibility.
• Anduin revealed that someone had cheated on the monthly exams and identified Hader Chris as the culprit.
• Hader admitted cheating because he feared letting down his year group, then asked Anduin to punish him alone.

Anduin stripped Hader and the third year of their honors after Hader admitted to cheating, then punished the academy’s boys with push-ups. Hader was made to count the exercises under Anduin’s relentless supervision, leaving his classmates pitying him and fearing Anduin.

• Anduin wiped Hader’s individual scores and the third year’s scores and honors, including Eeyup’s, and asked them to accept the decision.
• Eeyup accepted responsibility on behalf of the third year, and Hader apologized through tears as his classmates’ anger softened.
• Anduin ordered every boy in the academy to do fifty push-ups because Hader had broken the rules again.
• Anduin stopped counting at twenty-three, pulled Hader to his feet, and ordered him to count the remaining push-ups.
• Anduin made Hader restart when he counted too quickly and quietly, and Hader continued counting through sobs as the boys struggled through their punishment.

After Anduin’s strict punishments transformed Slytherin into a disciplined house and influenced the rest of Hogwarts, he invited Tonks to meet him because he wanted to learn about her Metamorphmagus ability. Tonks resented Slytherin over her family’s history, and Anduin tried to persuade her to help him.

• Anduin ended the monthly meeting, revoked the third-years’ rewards, and gave them to the fourth-years after Hader’s punishment left the Slytherins shaken.
• Hader became a strict study fanatic, and Slytherins across all years began keeping one another in line until disciplined habits became routine.
• Other houses and Hogwarts’ professors noticed the students’ improved manners and appearance, while Hog realized he had almost no rule-breakers to catch.
• Outside Hagrid’s Cabin, Anduin tested Alchemy Workshop equipment with students and spoke with Tonks, whose green hair and Metamorphmagus ability interested him.
• Tonks said she disliked Slytherins because they had driven her mother from her home, and Anduin argued that her family’s grievance was with the Blacks rather than the whole house.

Anduin persuaded Tonks to spend time with him by offering her food and explaining that he wanted to study her Metamorphmagus ability. The chapter left Tonks puzzled but listening as Anduin proposed taking a little of her blood to investigate her magic.

• Tonks accused Anduin and Slytherins of sharing Pure-blood prejudice, and Anduin revealed that he was Muggle-born and had sent the Lestrange family to Azkaban.
• Anduin called the Slytherin students out of their training and ordered them to run to Hogwarts Castle, convincing Tonks that they obeyed him.
• Anduin invited Tonks to eat with him, and they prepared charcoal-grilled pork chops together in his outdoor kitchen.
• Tonks suspected Anduin had an ulterior motive, so he explained that he wanted to study her Metamorphmagus ability.
• Anduin proposed taking some of Tonks's blood to determine how her magic worked and whether it involved her physiology or Bloodline Magic.

Anduin tried to measure Tonks's Magic Value, but she mistook his blood-drawing method for Dark Magic until the other students explained and demonstrated the Magic Power Meter. As Anduin cooked for them, he described how young wizards' magic power grows through natural development, training, and nutrition.

• Tonks accused Anduin of being a Dark Wizard and pointed her wand at him when he said he wanted to draw her blood.
• Bill and Charles laughed off Tonks's accusation, and Anduin explained that he wanted to study her Metamorphmagus ability.
• Charlie told Tonks that Anduin had measured the students' Magic Values, so she lowered her wand but asked for proof.
• Bill and Charlie demonstrated the Magic Power Meter, which showed Bill at 276 units and Charlie at 106.
• Anduin lit the grill and explained how magic power increases with age, training, and nutrition, and how Hogwarts protects young wizards during their growth.

Anduin explained how a wizard’s Magic Value and skill could differ, then tested Tonks’s Metamorphmagus ability and found her Magic Value was unusually high. He concluded that it was likely Natural Magic but said she would need to locate its source and any Magic Pattern within her to learn how to develop it.

• Anduin explained that Magic Value depended on constitution and practice, and that high Magic Value alone did not make someone powerful.
• Anduin told Charlie not to neglect his practice, then explained to Tonks that frequently using her ability might increase her Magic Value.
• Tonks demonstrated that she could alter her nose and mouth, and explained that her appearance returned to normal when she stopped.
• Anduin had Bill test Tonks with the Magic Power Meter, which showed a Magic Value of 124 units.
• Anduin identified Tonks’s Metamorphmagus ability as likely Natural Magic and said she needed to find its source, though her low Magic Sensitivity would make sensing it difficult.

Anduin trained Tonks to strengthen her Magic Perception and Transfiguration while studying her Metamorphmagus ability, which he concluded was likely Bloodline Magic. He found a cruel Travers family ritual that could copy Bloodline Magic or physical traits, leaving him considering how it might help him learn Tonks’s ability.

• Anduin proposed studying Tonks’s magic with an observation tool and training her Magic Perception, and Tonks agreed to share what she learned with him.
• Anduin assigned Bill to supervise Tonks’s basic training with Charlie and taught her Transfiguration separately.
• Tonks improved her Transfiguration and gradually learned to change more of her appearance, eventually using Anduin’s face to frighten Slytherins.
• Anduin concluded that the Metamorphmagus ability was probably Bloodline Magic and considered ways such magic could be acquired.
• Anduin examined the Travers family’s Bloodline Refinement ritual, which used a target’s magically charged blood and a magic array to copy Bloodline abilities or physical traits.

Anduin studied a Travers account of Bloodline Refinement and tested the ritual on cowhide using blood from a Hogwarts's wild boar. After adapting his tools to reduce potion waste, he completed the experiment and observed the hide change, though the chapter did not reveal the result of its new properties.

• Anduin read how Gryffindor had discovered and exploited Sigurd's weakness to kill him after Sigurd used Bloodline Refinement.
• Anduin decided to test the ritual on cowhide and a Hogwarts's wild boar because the blood requirements made testing it on Tonks too dangerous.
• Anduin found that the prepared potion evaporated quickly, so he built an Engraving Pen attachment that fed potion from a crystal bottle and reduced waste.
• Anduin used his observation devices to study the array, then poured the boar's blood over engraved cowhide while monitoring its magical reaction.
• Anduin stopped the boar's bleeding and watched until the array faded and the cowhide's properties had completely changed.

Anduin refined his ritual magic and used Tonks’s blood to make a Transformation Mask designed to copy a Metamorphmagus’s abilities. He put the blood-coated mask on to test whether the alchemical tool worked.

• Anduin tested and optimized magic-circle designs, reducing the blood needed for a ritual.
• Anduin prepared a Mooncalf-hide mask and drew an improved magic circle on it.
• Anduin called Tonks into the Forbidden Forest Cabin and drew her blood while she used her Metamorphmagus abilities.
• Anduin spread Tonks’s blood over the mask, stopped her bleeding, and put the mask on to test it.

Anduin tested a Disguise Mask that let him change his face and resist Revealing Potion, while Tonks experimented with disguising herself as him. They returned to Hogwarts as Slytherin prepared for finals and worried over the fifth-years’ O.W.L. requirements.

• Anduin bonded with the Disguise Mask and transformed his face into a more mature version of Tonks’s.
• Tonks changed her face to resemble a younger Anduin, and the two teased each other before Anduin tested the mask with Revealing Potion.
• Anduin confirmed the mask resisted Revealing Potion and left it on as he returned to his normal face.
• Anduin told Tonks she could make a monocle after she learned the Echoing Charm, then they returned to Hogwarts before nightfall.
• Slytherin students prepared for finals after 95 percent of their subjects earned E grades or higher, while the House Committee focused on fifth-years’ O.W.L. certificates.

Anduin returned to Slytherin’s common room as students prepared intensely for their O.W.L. exams, then reviewed the Study Committee’s subject-by-subject plans with Wendy and Louis. With exams less than a week away, he checked on the fifth-years’ progress and urged them to keep to their revision schedules.

• Slytherin students studied in the common room, aiming to earn more O.W.L. certificates than students in previous years.
• Louis told Anduin that the Study Committee had predicted questions for every subject and distributed revision booklets to students.
• Wendy and Louis reported their fifth-year exam predictions, including likely topics in Transfiguration, Defense Against the Dark Arts, and Potions.
• Anduin advised students not to force themselves to master the difficult Patronus Charm and told Wendy and Louis to supervise Potions practice.
• Anduin praised Wendy and Louis, reminded them to keep up with their own studies, and checked the fifth-years’ revision progress.

Anduin led Slytherin through end-of-year exams after the House Committee’s revision guides prepared students for most of the questions. When the results impressed the Hogwarts professors, Snape struggled to hide his pride in his House’s success.

• Anduin rallied the Slytherin students before exams, and they marched in orderly rows to the exam halls.
• Anduin sat O.W.L.s in four subjects while Slytherin students used their predicted questions and revision guides to tackle the exams confidently.
• The professors reviewed Slytherin’s grades and found that students had earned no marks below an E in the subjects discussed.
• Professor Sinistra joked that Snape had given his students Intelligence-Enhancing Potion, and Snape denied it while praising their abilities.
• Snape tried to remain composed as the professors congratulated him, but his pride showed in his twitching smile.

At Hogwarts' Final Dinner, Slytherin won the House Cup by a wide margin, and the school recognized Anduin's role in transforming the House. After returning home on the Hogwarts Express, Anduin went to a shop in the Muggle Street Area beside Diagon Alley.

• The professors and students gathered in the Great Hall for the Final Dinner, where Slytherin's strict discipline drew attention.
• Professor McGonagall began the House Points announcement, and Dumbledore awarded the House Cup to Slytherin with 635 points.
• Anduin began applauding, prompting the Slytherins to celebrate, while the rest of the school recognized his influence on the House.
• Anduin dismissed the Slytherins early after dinner and lifted their discipline requirements for the last two days of term.
• Anduin traveled home on the Hogwarts Express, said goodbye to the students, and went to a shop in the Muggle Street Area beside Diagon Alley.

Anduin arranged for William to set up a Muggle shop with heavy electrical use so he could secretly power his Magic Lathe. After checking a planned connection from his Diagon Alley basement to the shop, he prepared to steal electricity from the Muggle world without attracting notice.

• Anduin reunited with William and confirmed that William had bought the shop in Anduin’s name.
• Anduin instructed William to install a high-voltage connection, a main breaker, and variable resistors, and to keep the electrical-goods shop open.
• Anduin returned home and left Hog stuck with his head between the staircase railings while he went down to the basement.
• Anduin surveyed a map of Diagon Alley and marked a doorway in the basement wall after confirming its position with a magical locator.
• Anduin recalled that his Magic Lathe converted electricity into magic but used too much power for a diesel generator, so he planned to tap electricity from the Muggle world.

Anduin planned to buy and disguise a shop near Diagon Alley, then connect it to his Underground Laboratory with a tunnel and power cable. He tested a new alchemical collar on Hog, who shrank into a small dog, leaving its other effects unknown.

• Anduin planned to renovate a Muggle shop near his house and connect it to his basement with a protected underground passage and high-powered cable.
• Hog told Anduin that Qiqi had gone to help Augusta and Neville Longbottom clean their home.
• Anduin fitted Hog with a disguised alchemical collar and asked him to feed it magic.
• Hog activated the collar and shrank until he was smaller than an ordinary person's knee.

Anduin planned the supplies, products, prices, and Ministry connections for his alchemy business while Hog explored the house in his shrunken form. He returned downstairs to find Hog had piled up the furniture and proudly called it a fortress.

• Anduin explained the Shrinking Ring to Hog, who excitedly ran off to explore the house.
• Anduin planned to launch his alchemy factory over the summer and open his Alchemy Company by Christmas, listing suppliers and potential products with prices.
• Anduin wrote to Arthur and Moody to invite them to discuss a partnership with the Ministry of Magic.
• Qiqi returned home carrying ingredients and found the living room's furniture piled into a heap.
• Anduin sensed Hog in the pile and called his name, and Hog emerged to show off the fortress he had built.

Anduin completed a concealed underground power route and connected his prototype Magic Lathe to the Muggle shop’s new electrical supply. He began testing the machine by setting it to produce a Protection Amulet, and the chapter ended as it started processing Paraser Brass.

• Anduin bound the Shrinking Ring’s effect, preventing Hog from growing for a week after Hog caused a mess while testing it.
• Hog’s small puppy form let him return to Diagon Alley shops, where shopkeepers and customers gave him gifts.
• William’s team obtained the permits and equipped the Muggle shop’s basement as a high-voltage power distribution hub.
• Anduin carefully dug and reinforced the Underground Tunnel, concealed the electrical cables, and sealed both entrances with traps.
• Anduin powered up the Magic Lathe, confirmed that its core and controls were running, and set it to make a Protection Amulet from Paraser Brass.
• The lathe pressed the brass into a sheet and began cutting it with a spinning Drill Clamp.

Anduin refined the Magic Lathe until it could reliably mass-produce functional Defense Amulets, then welcomed Moody and Arthur to his home. Arthur brought Ginny along, and she greeted Anduin enthusiastically after tormenting Hog.

• Anduin tested a rune-engraved Protection Amulet and found that lathe vibrations made its shield weak and its production slow.
• Anduin added a Ripple Banishing Charm and another automatic Micro Engraver, improving the Magic Lathe until it produced consistent Defense Amulets that could withstand about two standard Stunning Spells.
• Moody and Arthur arrived at Anduin's home, where Moody teased Anduin and admired his Redcurrant Rum.
• Arthur explained that he had brought Ginny because Anduin was her godfather, while Ginny tugged on Hog's tail.
• Ginny let go of Hog when she saw Anduin and rushed into his arms.