Chapter Summaries

Grindelwald recognized that Li Weide was using the Mutual Aid Club to build influence while Dumbledore underestimated him. At Hogwarts, Li Weide used the club to confront bullies and weaken pure-blood supremacy before handing its management to Tom, prompting angry parents to complain to the Headmaster.

• Grindelwald told Vinda that Li Weide was gathering followers under the guise of righteous causes and instructed Annie to watch him.
• Li Weide organized the Mutual Aid Club with Slughorn's points and rewards, matched students for help, and used their records to identify potential core members.
• After the Beautifying Potion became profitable, Li Weide told Yak that the club would seek apologies from the students who had bullied him.
• Li Weide led dozens of club members to confront former bullies, requiring them to gain their victims' forgiveness before joining the club.
• Li Weide's campaign weakened pure-blood supremacy at Hogwarts, and he handed the club over to Tom as angry parents sent owls to the Headmaster's Office.

Headmaster Dippet ignored pure-blood families’ complaints about the Mutual Aid Club and made Dumbledore responsible for Hogwarts’s external affairs. After learning that Abraxas was struggling under family pressure, Li Weide reassured him and promised that his father would support the club.

• Old Malfoy raged at Abraxas for surrendering to Li Weide’s group, while Mrs. Malfoy stopped him from sending their son a Howler.
• Headmaster Dippet burned the pure-blood families’ letters, defended the Mutual Aid Club, and appointed Dumbledore Vice-Principal to handle external affairs.
• Tom planned a Bauhinia emblem for the Mutual Aid Club and told Li Weide that Abraxas had become miserable and stopped attending activities.
• Professor Slughorn gave Li Weide a Gringotts vault key where the Beautifying Potion profits would be deposited.
• Li Weide confronted Abraxas about hiding his family troubles and urged him to ask for help as a friend and club member.
• Abraxas called Li Weide Captain and asked for his help, and Li Weide promised that his father would send a supportive letter the next day.

Li Weide enlisted the Senior female student to send his consciousness into the Malfoys’ shared dream, where he used Nightmare Magic to frighten them into changing their plans and supporting the Mutual Aid Club. The Malfoys began swearing to abandon Pure-blood supremacy before his three-minute deadline ran out.

• Li Weide arranged a magical Galleon signal with Toby and entrusted him with the key to his Gringotts vault.
• Li Weide asked the Senior female student to help him enter the dreams of Abraxas’s parents and explain the Malfoy family’s plans against him.
• The Senior female student transported Li Weide into a shared dream with Mr. and Mrs. Malfoy.
• Li Weide terrified the Malfoys with a nightmare, then demanded they make an Unbreakable Vow to abandon Pure-blood supremacy and support the Mutual Aid Club.
• Mr. and Mrs. Malfoy cried in fear, then agreed to swear the vow before Li Weide’s timer expired.

Li Weide extracted Residue from the Malfoys after making them swear not to reveal him, then returned to Hogwarts as Tom doubted he had kept his promise to Abraxas. The Malfoys sent Abraxas a letter of support, proving Li Weide had succeeded, but Tom remained shaken by the secret Li Weide hinted he possessed.

• Li Weide made the Malfoys swear an Unbreakable Vow, extracted Residue from them, and returned to Hogwarts with the senior female student's warning to improve his Ancient Magic.
• The Malfoys woke with matching Unbreakable Vow scars and Mrs. Malfoy urged her husband not to oppose Li Weide; Old Malfoy decided to support Abraxas's work in the club.
• Tom accused Li Weide of doing nothing to help Abraxas and said he no longer trusted him, while Li Weide left without explaining himself.
• Abraxas received a letter from his father encouraging him to work hard in the club, then thanked Li Weide in front of the Slytherin Table.
• Tom read the letter and demanded to know how Li Weide had managed it, but Li Weide told him that his distrust was sad and walked away.

Li Weide gathered Ancient Magic in the Forbidden Forest, where two Wizarding Supremacists ambushed him and were captured for experiments. In the Dreamscape, he asked the senior female student to strengthen his Nightmare Magic and learned she could teach him additional restraints.

• Li Weide absorbed power from his fifth Ancient Magic Hotspot of the night and prepared to return to Hogwarts.
• Two Wizarding Supremacists attacked Li Weide, but he outmaneuvered them, used Legilimency to learn why they were searching the forest, and stunned them.
• Li Weide returned to the dormitory at four in the morning, while Tom resolved to speak with him the next day.
• Li Weide told the senior female student that he had captured two adult wizards as test subjects to study magic and the effects of Residue.
• Li Weide asked the senior female student to reinforce the Nightmare Magic holding the prisoners in the Somlunuo Family's Wizard Tower, and she offered to teach him further magical restraints.

Li Weide kept his plans secret from Tom and Annie while studying the Residue he had collected from the senior female student. As Grindelwald ordered a deeper search of the Forbidden Forest, Li Weide concluded that Residue’s negative emotions enhanced a wizard’s magic.

• Li Weide noticed that the senior female student’s black mist had grown denser, learned her cloak might last only about two years, and asked to use the newly leaked Residue for his own plans.
• Li Weide told Tom he was working alone on something important and asked him to look after Nagini, while Tom and Annie realized Li Weide had withdrawn from everyone.
• Annie reported Li Weide’s secrecy to Grindelwald, who ordered more searchers into the Forbidden Forest and told Annie to watch Li Weide closely.
• Li Weide experimented on two captured Wizarding Supremacists and found that exposure to Residue increased their excitement and magical strength.
• Li Weide concluded that Residue’s negative emotions stimulated magic and that stronger, more extreme emotions could enhance spells.

Li Weide experimented with ways to contain Residue without being corrupted by its negative emotions, then told Annie that he had found leads about a hidden power that could strengthen wizards. Annie eagerly asked to see the manuscripts, and Li Weide promised to show them after dinner.

• Li Weide extracted Residue from the Experiment Subjects and concluded that it affected its host by fostering dependence on absorbing more.
• Li Weide tried wrapping Residue in a sheet of Ancient Magic, but the membrane tore and became contaminated.
• At dinner, Tom diverted Annie’s questions about Li Weide’s recent activities until Li Weide chose to answer her.
• Li Weide told Annie that manuscripts by Isidora Morgana described a magical power hidden in the Forbidden Forest or Hogwarts, and that he had found leads.
• Annie asked to see the manuscripts, and Li Weide showed her the papers in his pocket and said she could read them after dinner.

Li Weide used manuscripts about Professor Morgana’s magical power to persuade Annie Rosier to join him and Tom on an investigation in the Forbidden Forest, while secretly steering Nurmengard toward a trap. He told Tom the power had vanished with Ranrok, but revealed that he planned to lure Grindelwald with a fabricated substitute.

• Li Weide showed Tom and Annie manuscripts from the Restricted Section that listed possible locations of Professor Morgana’s magical power.
• Annie recognized the locations from her stolen Notebook and agreed to join Li Weide and Tom in the Forbidden Forest, despite having already searched most of them.
• After Annie left, Li Weide used the Room of Requirement to open a passage into a Secret Passage and told Tom the magical power was gone.
• Li Weide showed Tom burned diary fragments claiming that Ranrok’s death scattered the power, concealing the line that the Senior female student had gathered it again and absorbed it.
• Tom recovered from his disappointment and agreed that Li Weide was using the information as bait for Grindelwald and Nurmengard.
• Li Weide explained that he would fool Annie with Potion Mist made from body-strengthening potions and Cheering Potion, and Tom praised his scheme.

Li Weide, Tom, and Annie entered the Forbidden Forest under the cover of Annie's detention and headed toward the ruins. Annie took the lead, revealing her familiarity with the forest, while Li Weide and Tom discussed their plan over voice chat and Li Weide warned Tom that he could hear his curses.

• Li Weide secured Annie's detention from Professor Slughorn and met her with Tom at the castle entrance.
• Tom flattered Ogg until the gamekeeper let the three Young Wizards enter the Forbidden Forest without an older student.
• Li Weide and Tom pretended to consult a map until Annie took it and led them along a route she knew well.
• Tom realized Annie had been to the Forbidden Forest before, and Li Weide explained that she had likely searched there for the magic the Wizarding Supremacists sought.
• Tom asked whether Li Weide's Potion Mist could fool Rosier, then cursed Li Weide over voice chat without realizing Li Weide could hear him.

Li Weide, Tom, and Annie investigated a ruin in the Forbidden Forest, where Li Weide theorized that Ancient Magic Hotspots formed from magic once used to build structures. Their search uncovered a magic-immune stone slab, which Li Weide smashed to reveal a small silver ball.

• Tom complained to Li Weide through the Whispering Charm, then backed down when Li Weide offered to beat him.
• Annie led Li Weide and Tom to a ruin, where they discussed why Morgana had hidden magical power among old buildings.
• Li Weide noticed traces of Ancient Magic in the ruins and guessed that Ancient Magic had once been used to construct them.
• Tom found a stone slab that resisted magic, and he and Li Weide carried it into the open with Annie's help.
• Li Weide transformed a branch into a hammer and shattered the slab, revealing a small silver ball.

Li Weide tricked Annie into believing she had discovered genuine magical power, then let her absorb real Residue while Tom still thought it was fake. Annie’s newfound strength and Li Weide’s suggestion that they keep the power secret led her to consider hiding it from Nurmengard and Grindelwald.

• Li Weide identified the sphere as Goblin Metal, and his vine spell opened it to reveal a cloud of magic.
• Li Weide offered the power to Annie, crediting her for guiding them through the Forbidden Forest, while Tom realized Li Weide had planned the deception.
• Annie inhaled the Residue and gained enough strength to cast Fiery Blast and perform fine Transfiguration.
• Li Weide suggested the three keep the power secret, and Annie began plotting to withhold her discovery from Nurmengard.
• Li Weide watched Annie’s ambition take root, while Tom shuddered at how easily Li Weide had manipulated her.

Li Weide explained to Tom how he planned to use Annie’s secret expeditions to draw Grindelwald’s Wizarding Supremacists into a trap, while avoiding a direct fight with Grindelwald. He revealed that his original bait had been Tom, leaving Tom to protest as Li Weide pointed out his supposed agreeableness.

• Ogg worried over the boys’ late return, and Li Weide blamed their delay on watching Mooncalves dance.
• Annie concealed her Secret Passage and planned to use the Wizarding Supremacists’ suspended searches to gather magical power alone.
• Li Weide and Tom discussed how Annie could pass news of her growing strength to Grindelwald, and Li Weide said they would target the Wizarding Supremacists rather than defeat Grindelwald.
• Li Weide showed Tom Dungbombs and explained that he planned to disguise powerful sleeping draughts as prank items, using Professor Slughorn as a witness to their intended use.
• Li Weide revealed that Tom had been his intended bait before he learned about the magical power, and Tom objected.

Li Weide pushed Tom into a dangerous test that forced him to master the Shield Charm, then tested Annie’s boosted magic against his own. Annie’s attacks could not touch him, and both she and Tom resolved to become stronger.

• Li Weide pressured Tom to let Annie attack him so he could improve his Shield Charm, despite Tom’s fears about Annie’s newfound strength.
• Tom cast a complete Shield Charm under pressure, blocked Annie’s spell, and proved he could cast the charm again without flaws.
• Li Weide tested Annie’s increased power and found that his Shield Charm could absorb her full-strength attack without cracking.
• Annie grew frustrated and unleashed several offensive spells, but Li Weide countered each one effortlessly with matching nonverbal magic.
• Li Weide said he could not last ten seconds against Dumbledore, prompting Tom and Annie to decide they had to become stronger.

Li Weide tried to restore a collapsed Secret Passage but stopped when his Repair Charm caused a noticeable earthquake, then devised a quieter way to guard his investigation. Meanwhile, Grindelwald ordered Vinda to intensify the search for the magical power, while Li Weide tested a sleeping-potion Dung Bomb on a Kneazle.

• Li Weide left the dueling practice, and Tom felt relieved until Annie reminded him that Li Weide had helped him and considered him a best friend.
• Li Weide used Ancient Magic to strengthen a Repair Charm on the collapsed Secret Passage, but halted when it caused an earthquake that drew the professors’ attention.
• Grindelwald concluded that the Goblins’ records were accurate and ordered Vinda to send Goblin Artisans to search more urgently for clues.
• Li Weide built a Sensing Trap and tested a sleeping-potion Dung Bomb on a Kneazle, knocking it unconscious instantly.

Li Weide experimented with emotional residue, finding that pure happiness had weaker benefits while carefully balanced mixed emotions greatly reduced the harmful side effects. After returning the Kneazle’s happiness, he discovered it had grown attached to him and decided to take it home disguised as a British Shorthair.

• Li Weide compared the residue’s magical enhancement with Annie’s results and considered whether residue made from happy emotions could avoid the harm caused by negative emotions.
• Li Weide extracted pure happiness from the Kneazle and found that its white residue had fewer negative effects but offered much less enhancement.
• Li Weide separated mixed emotional residue, tested a balanced blend with no effect, then adjusted the proportions of joy and anger to create a blend with strong enhancement and milder side effects.
• Li Weide returned the Kneazle’s happiness, and the affectionate Kneazle chose to follow him from the Forbidden Forest.
• Li Weide disguised the Kneazle as a blue-and-white British Shorthair, named it Tom, and the Tom at Hogwarts sneezed and wondered why someone kept calling his name.

Li Weide brought home a Kneazle and named it Tom, then discussed research on Residue with the Senior female student, who offered to handle experiments and use her knowledge to help him. The next day, Li Weide sent Toby into the Secret Chamber to memorize its layout, then put him to sleep and entered his Dreamscape.

• Li Weide brought a Kneazle named Tom back to the dormitory, where Tom resented sharing his name with the cat.
• In the Dreamscape, Li Weide explained his Residue research, and the Senior female student proposed adjusting its emotional balance and volunteered to conduct experiments.
• The Senior female student revealed that a Goblin Artisan had arrived in the Forbidden Forest, and Li Weide agreed to capture him so she could work with Goblin Metal.
• After waking, Li Weide began reading to improve his magical knowledge, while Tom assumed he wanted to pick a fight.
• Li Weide met Toby at the Secret Passage and asked him to enter the Secret Chamber and memorize its layout.
• Li Weide put Toby to sleep and used Nightmare Magic to enter his Dreamscape.

Li Weide helped Senior female student locate and capture a Goblin Artisan, while she possessed Tom Cat and used Nightmare Magic to incapacitate the camp. Back at the Wizard Tower, Senior female student recognized the Goblin Ring and its improved blueprint and prepared to question the Artisan in a dream.

• Li Weide recreated the Secret Chamber in a dream, then had Toby install Sensing Traps and retrieve the Goblin Metal scattered there.
• Senior female student told Li Weide to bring his cat on their nighttime outing, then possessed Tom Cat so she could guide him through the Forbidden Forest.
• Senior female student led Li Weide to a heavily guarded Goblin camp and used Nightmare Magic to put its Goblins and Wizarding Supremacists to sleep.
• Li Weide Apparated away with the sleeping Goblin Artisan and took a blueprint and ring from the workbench as Senior female student erased the magical traces.
• Senior female student identified the ring as a Goblin Ring used to control Magical Animals and said she would enter the Artisan's dream to learn from him.

Li Weide continued strengthening his knowledge and laid plans to lure Grindelwald’s people toward a trap, while Annie’s growing power and secret orders put her in an increasingly dangerous position. As Christmas approached, Tom agreed to face his mother’s family with Li Weide, and the senior female student reported that a Goblin craftsman might be able to build a device to compress Residue.

• Li Weide studied at the library while Annie’s strength kept increasing, and Tom resisted trying the fake medicine himself.
• Li Weide told Tom that incomplete manuscripts and planted fakes would guide Grindelwald’s people toward his trap; Tom made Li Weide promise not to blame him if it failed.
• Li Weide revealed that he would accompany Tom to visit his mother’s family during Christmas, while Annie claimed she had to stay at Hogwarts.
• Annie received Grindelwald’s order to return to Nurmengard for the holiday and learned that a strange presence in the Forbidden Forest had made a Goblin Artisan Master vanish and sent a camp to sleep.
• Annie warned Grindelwald that Li Weide planned another Forbidden Forest expedition, and Grindelwald ordered her to stop all activity and stay vigilant.
• The senior female student told Li Weide she had planted the requested Residue throughout the Forbidden Forest and had an idea for a Goblin Metal device to compress it.

Grindelwald absorbed a small portion of the magical power found in the Forbidden Forest and resolved to recruit Li Weide and Tom. Before Christmas, Tom told Dumbledore that he planned to visit his Gaunt relatives, and Dumbledore offered to accompany him.

• Grindelwald learned from Annie's copied manuscripts that Professor Morgana had gathered most of the magical power, then absorbed one of the three recovered portions.
• Dumbledore summoned Li Weide and Tom and arranged for them to stay in a house he owned during the Christmas holiday.
• Tom told Dumbledore that he wanted to visit his mother's family, the Gaunts, after discovering her surname in the library.
• Dumbledore warned Tom that Marvolo Gaunt had been violent and that Tom's uncle might not welcome him.
• Tom remained determined to visit the Gaunts, and Dumbledore said he would go with him.

Li Weide and Tom moved into a protected house in Godric's Hollow with Dumbledore's help, and Dumbledore left Fawkes there to guard them. After settling in, they agreed to visit the Gaunt Family that day, while Tom wondered whether he could win Dumbledore's trust by imitating Li Weide.

• Tom questioned Li Weide about involving Dumbledore, and Li Weide denied having any scheme.
• Dumbledore gave Li Weide and Tom the secret address of their new home, 81 Godric's Hollow, and led them there by Floo Powder.
• Toby welcomed Li Weide, and Dumbledore left Fawkes at the house to protect the boys.
• Li Weide and Tom chose separate rooms, while Dumbledore arranged Fawkes's nest and Toby explained he could shop and Apparate home.
• Tom agreed to visit the Gaunt Family with Dumbledore that day, then considered imitating Li Weide to earn Dumbledore's praise.