Chapter Summaries

Hagrid surprised the Hogwarts students with Fleurina, an adult Norwegian Ridgeback, after giving Neville an Arctic Puffskein for correctly guessing that Hagrid had brought a dragon. Brook, Hermione, and the others climbed onto Fleurina, and she took the excited students into the sky.

• Hagrid introduced an Arctic Puffskein and gave it to Neville as a reward for guessing that he had brought a dragon.
• Hagrid opened his suitcase and summoned Fleurina, a huge Norwegian Ridgeback he had raised for two years.
• Draco climbed onto Fleurina, and Brook, Hermione, Harry, and Ron followed to reassure the other students.
• Neville overcame his fear, touched Fleurina, and climbed onto her back with help from Harry and Ron.
• The students filled Fleurina's back, and Hagrid ordered her to fly, sending them soaring into the sky.

Fleurina delighted Hogwarts students with Dragon rides, while Ron embellished the experience into a story and Neville’s Puffskein became a favorite in Gryffindor. During a Christmas shopping trip to Hogsmeade, Brook and Hermione noticed an old man following them, whom Brook suspected was Aberforth Dumbledore, his great-grandfather.

• Fleurina flew students over Hogwarts and let them feed and pet her during Hagrid’s Care of Magical Creatures lesson.
• Ron entertained students with an exaggerated account of raising Fleurina, and Hermione corrected his claim that she was a Hungarian Horntail.
• Gryffindor girls persuaded Neville to bring his Puffskein to the common room each evening so they could pet it.
• Brook and Hermione went to Hogsmeade to buy Christmas gifts, and Hermione noticed an old man following them.
• Brook recognized the man’s resemblance to Dumbledore and suspected he was Aberforth Dumbledore, his great-grandfather.

Brook and Hermione confronted Aberforth Dumbledore, who explained that he had searched for Aurelius after the boy disappeared as a child. Brook refused to accept Aberforth’s apology on Aurelius’s behalf, but left the question of their own relationship unresolved.

• Brook and Hermione noticed Aberforth following them through Hogsmeade and went to the Three Broomsticks after buying their Christmas gifts.
• Aberforth stopped Brook and revealed that he was Albus Dumbledore’s younger brother, then asked to speak with him.
• Brook told Aberforth that he had met Aurelius, and Aberforth insisted that Aurelius had not been abandoned.
• Aberforth explained that he had entrusted Aurelius to a friendly wizarding family, searched for him after the family was murdered, and found him again in 1945.
• Brook told Aberforth that he should make amends to Aurelius, then left when their five minutes were up.
• Hermione asked whether Brook would accept Aberforth as family, and Brook left the decision uncertain as Hermione offered her support.

Brook, Hermione, and Romanova watched Manchester United's youth academy Christmas exhibition match, where Great Xia's players faced the Class of '92. Team 92A's superior stamina turned a close first half into a 3:0 lead, leaving the Great Xia players struggling in the second half.

• Brook and Hermione arrived at Manchester United's training ground and were joined in the VIP box by Romanova.
• Brook and Romanova discussed the Great Xia players on Team 92B and their rapid progress at the youth academy.
• Li Weifeng stopped Giggs's attack, and Team 92B launched a coordinated counterattack that ended with Weston catching the cross.
• Team 92B defended resolutely through a scoreless first half, with Sun Jihai and Li Weifeng helping Chen Tao keep a clean sheet.
• Team 92A exploited Team 92B's declining stamina as Cole scored in the 65th minute, Beckham added a free kick, and Cole scored again to make it 3:0.

Brook watched the Great Xia players lose 4–2 but praised their determination and ordered more investment in their youth academy and medical care. Back in London, he revealed that he and Hermione were wizards to Romanova, warned her that events in Japan were dangerous, and then discussed Golden Source Ventures’ successful investments in Great Xia.

• Li Jinyu scored for Great Xia, and he and Giggs each added a header before the match ended 4–2; Brook ordered more youth academy funding and medical support.
• Brook, Hermione, and Romanova magically returned to the Kensington apartment, where Hermione demonstrated Transfiguration and Brook showed Romanova a flame spell.
• Brook told Romanova that he and Hermione were wizards and warned her that the situation in Japan was dangerous, explaining that he had also wanted her prepared to sell products combining magic and science.
• Romanova asked whether she could become a wizard, and Brook told her that magic was something people were born with.
• Romanova presented Great Xia’s latest financial report, and she and Brook discussed Golden Source Ventures’ welcome and support from local governments there.

Romanova reported extortion and worker unrest at Jinyuan Venture Capital’s factories in Great Xia, and Brook ordered measures to protect the business while prioritizing local employment. After Romanova left to handle the problems, Brook spent a quiet stretch with Hermione before going to the Bones family estate on Christmas Eve.

• Romanova told Brook that officials and local bullies had extracted excessive business entertainment expenses from Jinyuan factories, and Brook ordered her to make an example of them.
• Romanova described village workers who had sabotaged factory quality checks, resold products, and forced management to reinstate them after villagers surrounded the factory.
• Brook told Romanova to build employee dormitories, recruit across several villages, and withdraw from any village that remained stubbornly hostile.
• Romanova flew to Great Xia, while Brook told Hermione that he held 43 percent of Jinyuan Venture Capital and teased her about becoming the lady of the house.
• Brook and Hermione enjoyed his leisurely retirement routine and amusement park in the Ring Space, then Brook went to the Bones family estate on Christmas Eve.

Brook returned to the Bersted home for Christmas, grew closer to Hassen, and learned about the curse that had crippled his legs. After dinner, Hassen revealed that Dumbledore had summoned Pure-blood Club leaders over Japan, while Brook had been deliberately kept out of the meeting.

• Brook returned through the front door, and Hassen welcomed him warmly before explaining that experiments to lift Ragnok the First's curse had cost him the use of his legs.
• Brook offered to investigate Hassen's curse, then joined him for Christmas dinner, where Millison was stunned by his arrival and left the table early.
• Brook and Hassen shared dishes they had prepared and talked warmly, while Hassen showed his pride in Brook.
• Hassen told Brook that Dumbledore had activated the Pure-Blood Club and summoned family heads to discuss Japan, but the Bersteds had been excluded because Dumbledore was wary of Brook.

Brook discussed Dumbledore’s plans and the support Voldemort’s former allies might offer, then celebrated Christmas at Bones Manor and returned home to exchange gifts with An An. Among his presents was Snape’s IOU for a dose of Felix Felicis, prompted by Brook’s memories of Black suffering under the Dementors.

• Brook told Hassen that Dumbledore would not move against him because Dumbledore was superstitious about Brook’s unknowable future.
• Hassen reported that Lucius and the other pure-bloods had probably agreed to support Voldemort’s return.
• Brook stayed overnight at Bones Manor and raised a Christmas toast to Dumbledore.
• Brook returned home and gave An An a Most Diligent House Elf badge, which made An An break down in tears.
• Brook read his Christmas gifts and found Snape’s IOU for a dose of Felix Felicis, which he linked to the memories of Black’s suffering that he had given Snape.

Brook watched Hermione reunite with Crookshank and saw Fred and George sell their miniature Gnome Puffs using a scarcity tactic he had taught them. The twins celebrated their profits, while Crookshank protected Ron from George before returning to Hermione.

• Hermione reunited with Crookshank, who rejected Brook and preferred staying in her arms.
• Brook summoned Snowball, whose backflip impressed Ron and provoked Crookshank's disdain.
• Fred and George introduced their miniature Gnome Puffs to the girls and sold the entire batch for one Gold Galleon each.
• The twins told Brook that his scarcity-based sales method had worked, and Brook recognized their claims about slow breeding as a tactic to raise demand.
• Crookshank chased George when he bullied Ron, then returned to Hermione after George stopped teasing him.

Brook tested the protective clothing Fred and George had developed and found it effective against bullets and explosions. He proposed scaling up production by hiring werewolves, leaving the twins eager to recruit Lupin and help change how werewolves were treated.

• Fred and George privately showed Brook the protective clothing they had developed.
• Brook tested the clothing on an alchemical dummy, and it withstood machine-gun fire and grenades with only limited damage from a direct grenade-launcher hit.
• Brook explained how an assembly line could increase production while letting the twins protect their core technology.
• When the twins worried about finding workers while still at school, Brook suggested hiring werewolves, including Lupin.
• Brook urged the twins to present the jobs as a gift to werewolves, and Fred said he would speak with Lupin that night.

Fred and George told Lupin they knew he was a werewolf and offered him a job with Weasley's Wizard Wheezes, including helping recruit werewolf workers. Lupin accepted the chance to organize the effort and promised to keep the workers accountable.

• Fred and George visited Lupin and revealed that they knew he was a werewolf.
• When Lupin prepared to resign, the twins said they wanted to hire him instead.
• Fred and George explained their plan to start Weasley's Wizard Wheezes and employ werewolves under strict hiring and work conditions.
• The twins offered food and lodging for workers, along with other roles for family members who were not selected for production work.
• Lupin agreed to discuss the plan with leaders of other werewolf settlements and promised to remove anyone who endangered the opportunity.

Brook completed a quest by collecting Fawkes's tears, then entered the Room of Requirement to claim Ravenclaw's Diadem and remove the Horcrux fragment inside it. The diadem revealed its true appearance, while the twins' plans and Lupin's old score with Fenrir Greyback remained unresolved.

• George realized that the twins had forgotten to discuss pay, and Fred said Lupin would negotiate with the werewolf leaders.
• Lupin focused on Fenrir Greyback, the werewolf who had bitten him and attacked wizarding children.
• Brook called Fawkes and collected several phoenix tears, completing the Friend of the Phoenix 2.0 quest.
• Brook chose the Room of Requirement treasure hunt quest and found Ravenclaw's Diadem among the stored objects.
• Brook resisted the diadem's temptation and transferred Voldemort's soul fragment into a quill.
• Brook examined the diadem after the soul fragment was removed, and it shed its rust.

Brook found a mysterious note in a damaged Golden Snitch, then used his system draw to obtain Eula, a Transformation Pill, and the Myriad Souls Banner, which he renamed the Human Sovereign Banner. Eula appeared before him and accused him of visual and auditory harassment.

• Brook found a note in a damaged Golden Snitch that mentioned the secret of the blank and a threat of death.
• Brook used Felix Felicis before making a ten-item draw with the system.
• Brook obtained Eula and a Transformation Pill, then won the hidden grand prize, the Myriad Souls Banner.
• Brook renamed the banner the Human Sovereign Banner and briefly felt its bone-chilling cold before putting it away.
• Brook summoned Eula, recognized her from a vision atop the Time Snail, and complimented her appearance.
• Eula told Brook that staring at her and making frivolous remarks counted as visual and auditory harassment.

Brook welcomed Eula to Hogwarts, offered her desserts, and explained a mission involving Japan’s crimes, which she eagerly accepted. Afterward, he considered who should receive a Transformation Pill and debated capturing a powerful magical creature to turn into a loyal subordinate.

• Eula listed the Lawrence Family’s rules for grudges and agreed to give Brook three chances of immunity in exchange for ice cream and honey pancakes.
• Brook summoned An An to prepare desserts and introduced Eula to the House Elf and Hogwarts.
• Brook explained his plans in Japan and the crimes committed there, and Eula requested immediate execution of the mission.
• Brook insisted that Eula first learn this world’s combat methods and finish her dessert before setting out.
• Brook considered using a Transformation Pill on Fawkes or Fleurina, then discussed capturing a unicorn, Zouwu, or Qilin instead.

Brook decided the Transformation Pill should go to Credence, believing family and the chance to control and restore the Obscurus mattered more than simply maximizing its usefulness. The next day, students flew with Fleurina, while Lupin rushed through Defense Against the Dark Arts lessons, seemingly preparing to leave Hogwarts if his secret was exposed.

• Brook considered giving the Transformation Pill to Dumbledore or Grindelwald before thinking of Credence Barebone, also known as Aurelius Dumbledore.
• Eula urged Brook to give the pill to Credence because they were family, and Brook thanked her for helping him see the emotional reason.
• Brook and Hermione joined Hagrid's Care of Magical Creatures class, where the students persuaded Hagrid to summon Fleurina with a Dragon Flute.
• Fleurina carried the students on a flight above Hogwarts while Brook helped Hagrid keep them safe.
• Lupin taught spell theory at a faster pace than usual, prompting Harry to ask what was wrong and Ron to complain about the homework.

Brook asked Professor Babbling to research the Bones family curse using generations of their notes, then visited Newt with Hermione to discuss something with him. The chapter ended as Brook told Tina why they had come.

• Snape smiled during Potions and treated Neville kindly, prompting students to spread rumors that he was in love.
• Snape punished the twins with a week of slug-processing detentions, but the students took his reaction as confirmation of the rumors.
• Brook asked Professor Babbling to investigate the Bones family curse, and she agreed to study the family’s research notes.
• Brook invited Hermione to visit Newt, and they traveled through a Space Gate to his snowbound home.
• Brook and Hermione greeted Tina, and Brook said he had come to discuss something with Newt.

Brook brought Newt a pill he believed could help Credence control his Obscurus, and they used Newt’s barrier array to stun Credence so Brook could administer it. The pill transformed Credence into a young, red-haired man, though the black mist still surrounded him.

• Tina told Brook to find Newt in the suitcase while Hermione stayed behind to talk with her.
• Brook found Newt tending to an injured mooncalf and told him he had a way to treat an Obscurus.
• Brook showed Newt the Transformation Pill, which he described as a Contract Potion that might help Credence regain control.
• After Brook failed to awaken Credence, Newt activated the barrier’s Stunning Spell and subdued the black mist.
• Brook slipped through the opened barrier and gave Credence the pill, which enveloped him in golden light and transformed him into a red-haired man.

Brook discovered that the Transformation Pill had given Credence’s Obscurus a separate personality, which submitted to Brook and was named Clio. After Credence returned, he sensed a possible blood connection to Brook and found that Brook’s contract magic could compel his actions.

• Credence’s Obscurus took control of his body, called Brook its master, and thanked him for granting it a physical form.
• Brook tried several names for the Obscurus before Newt suggested Clio, which Brook accepted.
• Brook ordered Clio to withdraw, and Credence regained control and asked how Brook had subdued the Obscurus.
• At Newt’s prompting, Credence sensed a possible blood connection to Brook and excitedly guessed that Brook might be his grandson.
• After Newt left, Brook tested the contract’s influence, and Credence obeyed his commands to stand, sit, and extend his hand.

Brook confronted Credence about their blood connection and offered him a chance to choose his own path, then asked him to kill Marcus Flint and Joseph Flint. Afterward, Brook saw a new vision in the Prophecy Snail’s shell and joined his family for lunch, where Newt planned a visit to Hogwarts with Tina.

• Brook told Credence that their biological connection was real but that he would not easily accept him as a grandfather.
• Credence rejected the idea of destroying the world and said he wanted to be a good person, so Brook left after saying he had repaid his favor.
• Credence followed Brook and agreed to do anything short of destroying the world, and Brook asked him to kill Marcus Flint and Joseph Flint.
• Credence asked Clio for help, and Clio pledged himself to his master as Credence’s right eye turned black.
• Brook saw winged shadows forming a circle in a new vision on the Prophecy Snail’s shell.
• At lunch, Newt said he wanted to visit Hogwarts to ask Hagrid about raising Dragons, and Tina agreed to go with him.

Brook brought Hermione and the Scamanders back to Hogwarts through a Space Gate, then gave Hermione Ravenclaw's Diadem. Hermione discovered it was real and spent the night reading under its influence, leaving her exhausted the next morning.

• Brook opened a Space Gate from Tina's home to the Gryffindor common room, and Newt and Tina followed him and Hermione through it.
• Hermione invited Tina and Newt to watch her Quidditch match against Ravenclaw the following Saturday, and Brook agreed to pick them up.
• Hermione reassured Brook that she trusted him not to hurt her, and they renewed their childhood pinky swear.
• Brook gave Hermione Ravenclaw's Diadem, which she recognized as the genuine lost artifact after seeing its inscription.
• Hermione put on the diadem and read runes all night, then woke exhausted and used Wiggenweld Potion before class.