Chapter Summaries

Brook prepared for the Black Lake task with Hermione’s detailed map and entered the competition after Ron was chosen as the hostage instead of Hermione. He stunned the spectators by summoning Hogwarts’ doors to part the lake and create a dry staircase to its bed.

• Hermione showed Brook her carefully planned map of the merpeople’s settlement, and Brook told her he was glad they had met.
• Brook arrived at the Black Lake with Hermione, unaware that Professor Sprout had chosen Ron as his hostage to protect the merpeople from Brook’s possible reaction.
• The whistle started the task, and Krum, Pheobe, and Williams entered the lake while Brook stayed on shore.
• Brook summoned doors from across Hogwarts, joined them into walls that parted the lake, and began walking down the dry passage to the lakebed.

Brook reached the Merfolk Village, chatted with its leader for five minutes, and rescued Ron, becoming the first Champion to return. After the judges congratulated him, Dumbledore asked him to return the doors he had borrowed.

• Brook found the Merfolk Village and saw Ron, You Rong Meimei, Cat-Leopard Meimei, and Gabrielle bound beside a statue.
• Brook spoke with the merfolk leader, Serendol, for more than five minutes before snapping Ron's ropes and flying him to the surface.
• Ron thanked Brook excitedly and shouted about flying as Brook carried him back to the judges' stand.
• Bagman announced Brook had finished in twelve minutes as the first Champion to return, and Hermione hurried over to check on him.
• Dumbledore asked Brook to return the doors he had borrowed from Pomona.

Brook rescued Gabrielle after Pheobe was eliminated from the lake challenge, and the crowd cheered as the sisters reunited. After a long wait, Dumbledore spoke with Serendol and the merpeople as the competition’s scores were about to be announced.

• Brook summoned hundreds of doors from the lake, sending them toward Hogwarts Castle, and Dumbledore remarked that the House Elves would have plenty to clean up.
• Dumbledore created a whirlpool beneath Bagman’s flare, and Madam Maxime caught Pheobe as she was thrown from the lake among several Grindylows.
• Pheobe panicked over Gabrielle’s safety, so Brook opened a Space Gate and brought the sleeping girl back to her sister.
• Pheobe thanked Brook with kisses on both cheeks, making Hermione jealous before she later recovered from her brief sulk.
• Hermione woke Brook as the scores were about to be announced, and he saw Dumbledore speaking Mermish with Serendol and the merpeople.

The judges awarded Brook Lott first place in the second task, while Ron became a celebrity by embellishing his supposed underwater kidnapping. Hermione later read Rita Skeeter’s article claiming Dumbledore had secretly orchestrated Brook’s feats, leaving the latest scandal circulating among readers.

• Bagman announced that Fleur Delacour received 25 points, Williams 38, Viktor Krum 40, and Brook Lott 45 for the second task.
• Bagman announced that the third task would take place on June 24th, with its details to be revealed one month beforehand.
• Ron entertained the Gryffindor common room by claiming he had fought fifty merpeople warriors, while Hermione kept quiet about the Sleeping Curse truth.
• Hermione read Rita Skeeter’s article alleging that Dumbledore had controlled Brook’s door magic, scripted his conversation with Serenor, and inspired his stone giant spell.

After the second task, Hermione and Brook laughed at a satirical magazine about Dumbledore before Professor Flitwick became fascinated by Brook’s combat spells. Flitwick argued that Brook’s Patronus Charm Possession might block offensive magic, and Brook warned him that changing a Patronus’s form was not simple.

• Hermione threw down a magazine accusing Dumbledore of manipulating the Triwizard Tournament, and Brook teased her about its praise of her intelligence and beauty.
• Ron bragged to Lavender about defeating the merfolk, while Brook and Hermione shared a smile as Hogwarts returned to normal after the second task.
• Professor Flitwick rushed to Brook during Charms Class to discuss combining Brook’s “Door, Come” spell with Bombarda and exploring the Patronus Charm’s combat uses.
• Flitwick claimed that Brook’s Patronus Charm Possession could make offensive magic ineffective against his body, potentially earning Brook an Order of Merlin, Second Class.
• Brook caught the excited Flitwick and cautioned him that changing a Patronus’s form was more difficult than it appeared.

Brook discussed transforming Patronuses and their possible uses with Professor Flitwick, inspiring ideas for mental defense and healing. Neville asked Brook to help his parents someday, and Brook promised he would try once the still-theoretical method became possible.

• Flitwick thanked Brook for explaining that he transformed his Patronus with the Transfiguration Curse, then brainstormed possible magical applications with him.
• Brook and Flitwick theorized that Patronus energy might defend against curses, reflect attacks, and heal mental trauma.
• After class, Neville told Brook that his parents had suffered mental damage from the Imperius Curse and asked him to help them someday.
• Brook told Neville that healing with a Patronus remained theoretical but promised to help him when they found a way.

Brook and the Hogwarts professors developed new applications for the Patronus Charm while treating psychological trauma, and Hermione joined their seminars. Recognizing that Brook and Hermione had outgrown the school curriculum, the professors proposed that they take their O.W.L.s and N.E.W.T.s early, leaving Brook to consider the plan.

• Brook told Professor Flitwick about Neville's parents, and Flitwick organized a seminar with McGonagall, Sprout, Snape, and Madam Pomfrey to explore using the Patronus Charm to treat psychological trauma.
• Brook demonstrated new Patronus applications during the seminars, while Madam Pomfrey taught him how to assess magic's effects on the mind.
• Hermione learned about the seminars, joined them with the professors' approval, and contributed to their discussions.
• McGonagall and Flitwick recognized that Brook had surpassed much of the school curriculum, and Snape and Sprout gave him their Potions notes and Herbology guide.
• McGonagall proposed that Brook and Hermione take their O.W.L.s that year and their N.E.W.T.s the next year so they could graduate early, and Brook considered the proposal.

Brook and Hermione prepared to take their O.W.Ls a year early, while Hermione’s relentless revision left their friends enduring her exam stress. Ron recruited Cho Chang, Evelyn, and Rolle to help, and Cho’s Ravenclaw practice materials calmed Hermione enough to continue studying.

• Hermione told Brook she would go wherever he went, and he joked that he needed to buy a house, making her blush as they chased each other toward Gryffindor Tower.
• Brook gathered Harry, Ron, and Draco to study with Hermione as emotional shock absorbers while she revised obsessively for the early exams.
• Harry secretly watched Draco, growing more convinced that Draco and Celestine were connected because their interests and views on Quidditch matched.
• Ron complained that Hermione had mixed fifth-year Potions material into the revision notes, and Hermione snapped her quill after he disturbed her.
• Ron persuaded Cho Chang, Evelyn, and Rolle to join their study sessions; Cho gave Hermione Ravenclaw exam notes and a mock paper, which eased Hermione’s anxiety after she scored well.

As the war in Japan stalled, Voldemort asked Brook to use Jinyuan Venture Capital to build mining and smelting plants in Monkey Country, offering him half the resources. Brook agreed and called Romanova, who was surprised to hear from him after nearly two years.

• The Royalist Faction launched an all-out assault and drove the Cabinet Faction onto Nankaido, Shikoku, and Kyushu, where American military aid helped the defenders hold their ground.
• Eula continued slaughtering Cabinet Faction troops with the Human Sovereign Banner while Voldemort watched from afar.
• Voldemort summoned Brook and showed him Jia Xu's proposal to invest in mining and smelting plants in Monkey Country.
• Brook agreed to the deal in exchange for half the resources, though he noted that Monkey Country would be difficult to confront.
• Brook called Romanova, who expressed surprise that her boss had contacted her after nearly two years.

Brook visited Romanova in Modu and tasked her with preparing a mining investment in Monkey Country, revealing that the Japan Royalist Faction planned to target it. Romanova pledged her loyalty to Brook, who rewarded her with a beauty potion.

• Brook used a Space Gate to visit Romanova at her home in Modu.
• Brook told Romanova to arrange mining investments in Monkey Country and prioritize speed, loosen safety standards, and impose harsh breach-of-contract penalties.
• Brook revealed that the Japan Royalist Faction's next target was Monkey Country, and Romanova decided to follow him and seek Great Xia citizenship.
• Brook explained that he would reward loyal subordinates and gave Romanova a beauty potion that could preserve her youthful appearance.

Brook gave Romanova protective, healing, and luck potions before returning to Hogwarts, where he learned the Triwizard Tournament’s third task would be a maze. As the O.W.L.s and tournament approached, Hermione studied intensively while the Weasley twins ran their pre-exam business.

• Brook gave Romanova several potions, including a potion that could save her from near death, and left her a card to contact Voldemort.
• Brook returned to the Gryffindor dormitory and reflected on his past relationships and his feelings about Romanova.
• Brook told Hermione that the Triwizard Tournament’s final task would be a maze, and Hermione asked whether flying was allowed.
• Hermione studied inside an enlarged suitcase and secretly used Ravenclaw's Diadem while preparing for the O.W.L.s.
• George and Fred sold exam-related products, and Brook asked why they bothered with the small profits as George began bragging about Dragon Claw Powder sales.

Brook and Hermione prepared for their O.W.L. exams as officials arrived at Hogwarts, and the first written exam began. Afterward, Hermione worried over her answers while Brook reminded her to focus on the practical exam ahead.

• Fred and George told Ron they sold Fleurina's toenails as expensive powder and warned him their supply was already gone.
• Professor McGonagall explained the two-week O.W.L. schedule and anti-cheating rules to Brook and Hermione, then promised to cook for them after the tournament.
• Dumbledore welcomed Professor Griselda Marchbanks and the other exam officials, and Marchbanks said she was eager to meet Brook.
• Brook stopped Hermione from revising through breakfast and urged her to eat before the exams.
• Brook and the Gryffindor fifth-years began their written exams in the transformed Great Hall, and Brook answered the first Charms question.
• After the exam, Hermione anxiously discussed her answers, and Brook reminded her to prepare for the afternoon practical.

Brook excelled in his Charms practical and impressed Professor Marchbanks by demonstrating the Giant of Light, a spell she recognized as an unprecedented fusion of several branches of magic. The next day, he easily completed the Transfiguration theory exam and gave Marchbanks another extraordinary demonstration.

• Brook entered his Charms practical and performed the examination spells flawlessly with wandless, nonverbal casting.
• Brook conjured a five-meter-tall Giant of Light, and Marchbanks identified its links to the Patronus Charm, Shield Charm, Transfiguration, and Ancient Runes.
• Marchbanks praised Brook’s achievement, gave him her contact information and promised to share her research ideas with him.
• Brook found Hermione pleased with her practical exam, while she spent the evening studying Transfiguration theory.
• Brook easily completed the next morning’s theory exam using the Memory Gate, then transformed into Six-Winged Fallen Angel Lucifer and flew for Marchbanks’s practical examination.

Brook completed the O.W.L. exams, impressing Marchbanks with a dangerous Fiendfyre spell before the final tournament match. The Champions’ families arrived at Hogwarts, and Hermione reunited with her parents and began showing them the castle.

• Brook performed well in his exams, showing Marchbanks Fiendfyre shaped like an Eastern Dragon and promising to avoid using it in public.
• Brook and Hermione finished the O.W.L. exams, with Brook struggling most with History of Magic.
• Brook invited Hermione to meet her family before the tournament’s final match, and she hoped her grandfather Hassen would be there.
• Hermione was surprised by her parents’ arrival and reunited with them in the Champions’ meeting room.
• Hermione took her parents on a tour of Hogwarts and brought them into the Gryffindor common room.

Hermione showed her parents around Hogwarts before Brook prepared for the final Triwizard task. As the Champions headed to the maze, Brook told Williams he planned to blow it up, alarming him because he would be inside.

• Brook explained to the Grangers how magical portraits could be corrected by their subjects' souls after death.
• Hermione toured the castle with her parents, met Professor Sprout and Hagrid, and visited the magical creatures in Hagrid's expanded suitcase.
• Brook took Hermione and her parents beneath the Black Lake, where the merpeople greeted them, and later reassured Mrs. Granger that the spectators would be safe during the match.
• The Grangers took pictures with Brook and Hermione before attending dinner, where Dumbledore hurried in to speak with Fudge and then left with him.
• Bagman led the four Champions toward the Quidditch Pitch, and Brook told Williams he planned to blow up the entire maze.

Brook Lott won the Triwizard Tournament final by using Fiendfyre to burn a path through the maze and reach the trophy. The crowd celebrated his victory as Dumbledore wondered whether Brook had independently developed the spell he had once created with Grindelwald.

• Before the final began, Williams asked Brook to wait near the trophy, but Brook teased him about causing trouble in the maze.
• Bagman announced Brook as the highest-ranked champion and gave him the first start, but Brook waited and then cast Path of the Fire God.
• Brook's Fiendfyre burned away the maze hedges, traps, and magical creatures, creating a clear path to the trophy.
• Krum tried to extinguish the flames with Finite Incantatem, but the spell failed, and Williams warned him that the fire was Fiendfyre.
• Brook flew through the fiery corridor and took the trophy as the stunned spectators erupted into cheers.
• The four champions joined the awards ceremony, where Bagman praised Brook's victory and Dumbledore questioned how Brook had learned the spell.

Brook won the Four Champions Tournament, and Headmaster Fontana invited him to consider becoming Ilvermorny's headmaster. Meanwhile, Professor Tofty captured Karkaroff and revealed himself to be someone disguised with Polyjuice Potion.

• Bagman announced Brook Lott as the tournament champion, and Fudge gave him the prize money.
• Fontana congratulated Brook and invited him to consider becoming Ilvermorny's headmaster after graduation.
• Brook sent Hermione's parents home through a Space Gate, then joined Harry, Ron, and Hermione as they discussed Karkaroff's disappearance.
• Earlier that afternoon, Karkaroff felt the Dark Mark burn while sneaking toward the maze to scout its route for Krum.
• Professor Tofty stunned and bound Karkaroff, dragged him into a cave, and woke him there.
• Tofty's Polyjuice disguise wore off, revealing a young man with greasy black hair.

Little Barty Crouch tortured and killed Karkaroff on Voldemort’s orders, then returned to Hogwarts disguised as Professor Tofty. In the headmaster’s office, Fudge chose to conceal the murder and claim Karkaroff had left early, while Dumbledore objected.

• Little Barty reminded Karkaroff that his betrayal had led to Barty’s mother’s death and tortured him with the Cruciatus Curse.
• Little Barty revealed that Voldemort had ordered Karkaroff’s death, then killed him with the Killing Curse.
• Little Barty took a long route through the Forbidden Forest, transformed into Professor Tofty, and returned to Hogwarts.
• Dumbledore urged Fudge to investigate Karkaroff’s murder and notify Durmstrang and the International Confederation of Wizards.
• Fudge refused, hid Karkaroff’s corpse in his briefcase, and insisted that Karkaroff had left Hogwarts early for personal reasons.

After Fudge refused to let Dumbledore investigate Karkaroff’s death, Dumbledore suspected the murderer was still at Hogwarts and borrowed Brook’s Marauder’s Map. At the leaving feast, Dumbledore announced Karkaroff’s death and began to tell the school the truth.

• Fudge argued that Karkaroff’s body was in his custody and stormed out after threatening Dumbledore.
• Dumbledore suspected someone at Hogwarts had used Polyjuice Potion, and he ruled out Brook as the murderer.
• Dumbledore borrowed the Marauder’s Map from Brook, who agreed but asked not to receive points for it.
• Brook hid in the Ring Space for several days to escape the attention he received as Triwizard Tournament champion.
• At the leaving feast, Dumbledore announced that Karkaroff had been found dead in the Forbidden Forest, and the students reacted with little grief.
• Dumbledore said the students had a right to know the truth about Karkaroff’s death.

After Dumbledore announced that Karkaroff had been murdered, Brook challenged the idea that Voldemort was behind it and urged Harry to build political power before confronting him. The next morning, Brook and Hermione went to see Gabrielle off as the visiting students prepared to leave.

• Dumbledore told the Great Hall that Karkaroff had likely been killed by Death Eaters, and warned that unity mattered as Voldemort returned.
• Brook argued to Harry, Hermione, and Ron that Karkaroff's murder might have been a personal grudge and that Dumbledore could be using it to pressure the Ministry.
• Harry said he wanted to become an Auror and fight Voldemort, but Brook and Hermione explained that he would need influence and allies; Brook suggested he speak with Draco.
• The Quibbler reported Karkaroff's death with an implausible claim that Voldemort had led three hundred Death Eaters in the attack.
• The next morning, Hagrid helped Madam Maxime harness two Thestrals while Brook and Hermione arrived to see Gabrielle off.