Chapter Summaries

Harry began communicating with Tom Riddle through the diary under Mu En’s supervision, while concealing his knowledge of Horcruxes. Afterward, he rejected his own doubts about confronting Voldemort and reaffirmed his resolve to seek revenge for his parents.

• Dumbledore invited Lupin to his office, and Mu En then brought Harry in to discuss the diary.
• Mu En sealed Harry’s memories about Horcruxes, and Harry wrote in the diary to make himself appear like a mistreated Slytherin Parselmouth.
• Tom Riddle introduced himself, reassured Harry about Parseltongue, and probed his past before Harry closed the diary.
• Harry told Mu En he planned to act like a discriminated-against Slytherin to tempt Tom into controlling him, and Mu En instructed him to study the diary at school under supervision.
• In the corridor, Harry rejected a vision of his cold, rational self and reaffirmed that he would confront Voldemort to avenge his parents.
• Cendrillon found Harry in the corridor and encouraged him to curse or hit whoever was arguing in his head.

At Hogwarts’s Exhibition Match, Hermione defeated a Slytherin girl who had challenged her for the chance to date Harry. Harry then challenged Hellenred, who revealed he had suspected Harry’s unusual circumstances and was eager to test himself against Professor Jones’s apprentice.

• Draco Malfoy and Jemma Farley exchanged challenges, with Draco refusing to back down.
• Jordan opened the Exhibition Match and explained that contestants could challenge or refuse one another.
• A Slytherin girl challenged Hermione and declared that Harry would have to date her if she won; Harry encouraged Hermione to accept.
• Hermione swiftly defeated the girl with Locomotor Mortis and Petrificus Totalus.
• Harry clarified that rumors about him and his friends were only jokes, then challenged Hellenred to a duel.
• Hellenred accepted and said he had inferred Harry’s unusual circumstances and wanted to test himself against Professor Jones’s apprentice.

Harry defeated Hellenred in a fierce duel and learned that his strength had made him Slytherin’s leading figure. Hellenred urged him to use that influence to rebuild the House as Voldemort’s return approached.

• Hellenred deflected Harry’s attacks and pressed him with spells while asking whether Voldemort would return; Harry confirmed that he would.
• Hellenred explained that strength had made him Slytherin’s uncrowned king and warned Harry that his actions would now affect the House.
• Harry used a wandless Scouring Charm and split a conjured fire dragon to get past Hellenred’s termination spell, then struck him with the resulting attack.
• Hellenred told Jordan to end the duel, and Jordan declared Harry the winner after Hellenred said he could no longer wield a wand.
• Hellenred urged Harry to take up the work of rebuilding Slytherin, and the House’s students began applauding Harry as he left.

Draco Malfoy defeated Jemma Farley in a duel and told her she had no right to interfere in his affairs. As the school celebrated the end of the year, Harry faced admiration from Slytherin students and encouraged a first-year who asked how to become better.

• Draco Malfoy used a venomous snake and a barrage of spells to defeat Jemma Farley, then warned her to stay out of his affairs.
• Draco discussed his victory with Harry, while Hermione challenged Cedric and lost after a lengthy duel.
• Draco challenged Harry to a duel, and Madam Pomfrey treated the most severely injured contestant as the matches continued into the evening.
• At the end-of-year feast, Fred asked Harry whether Professor Jones would keep teaching them, and Harry said there seemed to be no obstacle for now.
• Harry joined Draco at the Slytherin table, where the students made room for him and a first-year asked how to become as amazing as he was.
• Harry told the first-year to keep striving and give everything he had.

Sirius Black and Lupin left Hogwarts together, and Harry began planning his next year of studies before boarding the Hogwarts Express. At King's Cross, Draco Malfoy feared his father's disappointment, but Lucius praised his progress and promised him a new broomstick.

• Sirius Black told Harry to visit him in London during the holidays, and Lupin revealed he would return as a professor once Professor Keltburn retired.
• Harry considered taking Care of Magical Creatures, Ancient Runes, and Arithmancy, but chose not to speak to Professor Snape about his mother yet.
• Hermione told Harry she would arrange a London maths tutor, and Harry and Hermione explained Muggle education and government to Draco Malfoy.
• Hellenred joined the compartment with Neville and invited them to look forward to a trip into the Muggle world, and Neville said he needed his grandmother's permission.
• At King's Cross, Draco Malfoy admitted he had placed third in his studies and the Duelling Tournament, and Lucius praised his effort, checked him for injuries, and promised him a Fireworm Arrow broomstick.

Harry learned how Portal magic differed from Apparition when Uncle Mu En demonstrated the spell, then traveled with him to the Grangers’ home. Uncle Mu En stayed with Chris while Harry began a tutoring session with Hermione and Mrs. Berna, and Chris played him a song from the musical Elisabeth.

• Harry returned to Number 4, Privet Drive, where Vernon and Dudley discussed Sirius Black, and Harry reassured them that Black would not come there.
• At Number 13, Privet Drive, Uncle Mu En offered to teach Harry Apparition and explained that his own Portal magic worked by opening a passage through space.
• Uncle Mu En demonstrated Portal travel by taking Harry to the Grangers’ home, where Harry greeted Chris and Hermione before going upstairs with tutor Berna.
• Chris showed Uncle Mu En a cassette from the musical Elisabeth and played the song “Wenn ich tanzen will.”

Mu En joined Dumbledore to investigate a suspected Horcrux hidden in the orphanage’s seaside cave. They opened a blood-sealed doorway and discovered a vast lake filled with Living Corpses made from villagers, leaving Mu En furious at the sight.

• Mu En received Dumbledore’s letter about leads on another Horcrux and left the Granger residence for Hogwarts.
• Dumbledore identified the orphanage where Tom Riddle had lived as their destination and took Mu En to the seaside cliffs.
• Mu En and Dumbledore swam through a fissure in the cliff and found a concealed stone doorway that required blood to open.
• They entered a cavern containing a vast black lake and found a mountain of Living Corpses made from villagers.

Mu En and Dumbledore crossed Voldemort’s lake of Inferi and reached the potion protecting a Horcrux. After Mu En drank some without effect, Dumbledore endured the potion’s visions of guilt and grief, leaving him collapsed and weeping.

• Mu En raised a boat from the lake, and Dumbledore identified the Inferi as people from the orphanage and the village by the cliffs.
• Dumbledore explained that the boat measured magical power, while Mu En crossed the lake underwater and forced the Inferi aside with blue-violet flames.
• Mu En and Dumbledore reached the stone basin and found that its protective magic allowed the green liquid to be taken only by simple physical means.
• Mu En drank a cup of the potion without apparent harm, but Dumbledore drank some and was overwhelmed by agony and visions of his past guilt.
• Mu En forced the remaining potion down Dumbledore’s throat until Dumbledore collapsed, sobbing and begging to be released.

Mu En recovered the Elder Wand and found a note from R.A.B. indicating that the real Horcrux had been stolen, then returned to Moonlight Castle to study an Inferius. Harry faced the Dursleys’ demands to attend dinner with Aunt Marge, and the chapter ended when an owl arrived with a letter.

• Mu En took the Elder Wand and read R.A.B.’s note, which said that the real Horcrux had been stolen and was meant to be destroyed.
• Mu En captured a small Inferius and returned to Moonlight Castle, while Dumbledore agreed to investigate who R.A.B. was.
• Harry learned that Aunt Marge would stay with the Dursleys for a week and that Vernon expected him at a family dinner.
• Harry agreed to behave at dinner only if Marge treated him politely, then warned the Dursleys that his magic might not stay under control.
• Harry went to Moonlight Castle and learned that Mu En was still studying Inferi in the basement.
• A large owl arrived at the door carrying a letter as Harry began telling Lucifer he might have to return to the Dursleys that night.

Harry received Hels Hellenred’s request to visit Mu En, then left Moonlight Castle to spend the evening at the Dursleys’ house. After enduring Marge’s insults at dinner, Harry finally snapped when she insulted his mother.

• Harry delivered Hels Hellenred’s letter to Mu En, who invited Hels to visit at the end of July.
• Mu En explained that the Inferius he was studying belonged to a family transformed by Voldemort and that he hoped to restore them before giving them release.
• Harry wrote to Hels and Neville, then left Moonlight Castle and went to Number 4, Privet Drive.
• Marge’s dog Ripper barked at Harry, and Harry silenced it with magic.
• Dudley offered Harry money to tolerate Marge’s abuse, but Harry declined and said he could put up with her insults.
• When Marge compared Harry’s mother to a bad breeding dog, Harry told her to shut her mouth.

Harry left the Dursley Residence after confronting Petunia and Marge, and set out to visit Godric's Hollow. Mu En and Lucifer responded to his departure in their own ways, with Lucifer sending Shooting Star after him.

• Harry silenced Marge, threw her into the garden, and demanded that Petunia explain her hatred of his mother, but Petunia only called him a monster.
• Harry packed his belongings, reassured Dudley, apologized to the Dursleys for the trouble he had caused, and left Number 4, Privet Drive.
• Harry decided to visit Godric's Hollow instead of going to see Uncle Mu En.
• Mu En arrived at the Dursleys' house, buried half a gold brick in the garden, and told Vernon that Harry owed them no gratitude.
• Lucifer urged Mu En to call Harry back, then sent Shooting Star after him when Mu En refused.

Harry traveled to Godric's Hollow, saw the memorial to his parents, and entered the graveyard, where he met a weakened Dumbledore. Dumbledore led him deeper into the graveyard and accepted Harry’s firm decision to leave the Dursley Residence without trying to change his mind.

• Harry took the Knight Bus to Godric's Hollow under the name Pete Jones and prepared for his new life during the journey.
• Harry found a memorial that transformed into a statue of his parents and himself, then entered the village graveyard.
• Harry encountered a frail Dumbledore, who explained that he had been waiting in Godric's Hollow and showed Harry his family’s grave.
• Dumbledore asked Harry whether leaving the Dursley Residence was a serious choice, and Harry insisted he would not regret it.
• Dumbledore accepted Harry’s decision, surprising Harry, who had expected advice or demands.

Harry visited his parents’ graves and the ruined Potter house with Dumbledore, reflecting on his family and the people who had remembered Lily. As dawn broke, a shooting star approached, and Harry told Dumbledore that someone had come to take him home.

• Dumbledore told Harry that he and Voldemort were the only surviving bloodlines of the Peverell family after Harry identified Ignotus Peverell’s grave.
• Harry visited James and Lily Potter’s graves, bloomed flowers around them, and bowed to his parents.
• Harry and Dumbledore went to the ruined Potter house, where Harry found a preserved photograph of Lily and wondered whether Professor Snape had visited.
• Harry discovered that people had recently entered much of the house but had left the room from his dreams untouched.
• At dawn, Harry saw a shooting star approaching and told Dumbledore that someone had come to take him home.

Hellenred sought Mu En’s help integrating magical education with Muggle institutions, and Mu En proposed that Hogwarts secretly establish ties with British schools. The chapter ended with Dumbledore agreeing that they would have to proceed in secret despite the Wizarding Secrecy Act.

• Hellenred and Leighton visited Mu En, where Hellenred explained that he lacked Muggle educational qualifications and could not navigate the school application system.
• Leighton explained that the Ministry of Magic had almost no contact with the Muggle government, and Mu En advised Hellenred to bypass the Department of Magical Education until Fudge stepped down.
• Mu En sent Harry to find Dumbledore, and Harry used an unfamiliar magical array to Apparate away.
• Mu En offered to share copies of some of his less dark magical knowledge, and Hellenred promised that his family would contribute some of its own collections.
• Dumbledore arrived, heard Mu En’s proposal for Hogwarts to establish ties with British schools, and said they would have to do it secretly.

Dumbledore considered Mu En’s proposal to bring wizarding students into Muggle institutions and saw education as a new path toward change. He joined Mu En and a group of companions on a visit to Cambridge, where Cendrillon saw Mu En’s disguised appearance.

• Mu En offered to take Hellenred to Cambridge or Oxford, and Dumbledore decided to explore sending wizarding students to Muggle institutions.
• Dumbledore encountered Silvanus Celticburn, who was leaving Hogwarts to visit a Norwegian dragon reserve, then returned to his office to consider change through education.
• Ariana told Dumbledore that Cendrillon had seemed downcast, and he invited them both to join the outing.
• Mu En gathered Neville, Harry, Granger, Draco, Dumbledore, Ab Foras, Nagini, Ariana, and Cendrillon before leading the group from Diagon Alley to Cambridge.
• Cendrillon admired Cambridge’s old buildings, then asked Mu En to show her his face and learned he had long hair and a thick beard beneath his disguise.

Mu En took the group sightseeing in Cambridge, where they watched Scent of a Woman and discussed Hellenred’s possible return to school. Their boatman, Elph Hoskin, revealed that he had approached them because he suspected they were wizards.

• Draco Malfoy mistook a mobile phone for a camera, and Hermione and Harry explained Muggle technology to him.
• Mu En brought the group to see Scent of a Woman, whose story reminded Harry, Hermione, and Draco of people and problems in their own world.
• The group rode a boat along the Cam River, and Mu En discussed with Hellenred whether he could spend a year catching up on ordinary-world schooling before applying to university.
• Elph Hoskin introduced himself as a St. George's College student and organizer of the Occult Studies Society, explaining that he had approached them because the two Dumbledores looked like wizards.

Dumbledore and Mu En met Hoskin, a Cambridge researcher who had discovered the Wizarding World and hoped its magic could cure his mother. After promising secrecy and arranging for Hoskin to help Hellenred settle in, the group returned to London, where Harry recognized a black dog as Sirius Black.

• Mu En demonstrated magic to Hoskin, and Dumbledore asked him about his investigations into the hidden world.
• Hoskin recounted how Evany Stone’s strange behavior and magic sparked his curiosity, and Hellenred remembered her as a former Ravenclaw who had argued over being denied prefect status.
• Hoskin explained that he wanted to find a cure for his mother’s neurological illness, and Dumbledore said magical treatment might be worth trying.
• Dumbledore asked Hoskin to keep the Wizarding World secret and help Hellenred adjust to Cambridge, and Hoskin eagerly agreed.
• After touring Cambridge and returning to London, the group heard a black dog barking across the street, and Harry recognized it as Sirius Black.

Sirius Black brought Harry, Mu En, Hermione, and Cendrillon to Grimmauld Place 12, where they met Lupin and the hostile House-elf Kreacher. As Sirius explained the house’s past and Kreacher’s resentment, he revealed that his younger brother Regulus Black had joined the Death Eaters and might be dead.

• Hellenred, Draco Malfoy, and Neville left, and Dumbledore departed with Ab Foras and Cendrillon’s picture frame.
• Sirius Black invited Harry and the others to dinner and led them to the hidden Grimmauld Place 12.
• Sirius Black revealed the concealed house, and Lupin welcomed the group inside.
• Kreacher insulted the guests, and Mu En sent him flying into a wall before Sirius ordered him to apologize and clean the house.
• Lupin explained Kreacher’s resentment toward Sirius Black, and Sirius described the Black family’s tradition of displaying House-elf heads.
• Sirius Black told the group that his younger brother Regulus Black had been close to Kreacher, joined the Death Eaters, and might be dead.

Mu En discovered Regulus Black's locket in a protected cabinet at the Black family home and realized Regulus might have been a hero. Kreacher revealed that Regulus had sacrificed himself to replace a locket, but his account ended before explaining what happened afterward.

• Harry, Sirius Black, and Lupin were startled when Sirius's mother's portrait burst into a tirade, and they struggled to close its curtains.
• Mu En broke open a magically protected cabinet and found a golden locket, connecting it to Sirius Black's brother, Regulus Arcturus Black, and the initials R.A.B.
• Kreacher identified the locket as Regulus's, and Sirius Black ordered him to reveal everything he knew about it.
• Kreacher explained that Regulus had taken a locket like the Dark Lord's and ordered Kreacher to swap it with the one in a stone basin after the potion was gone.
• Kreacher recounted that Regulus drank the potion himself, sent Kreacher away, and was dragged beneath the water after the locket exchange.

Mu En destroyed Regulus's Horcrux and helped Sirius recover his brother's remains from the cave. As Sirius grieved at Grimmauld Place 12, Harry told Hermione about a strange vision involving Voldemort and a powerful old man.

• Kreacher recounted Regulus's attempt to destroy the locket, and Sirius learned that R.A.B. was his brother.
• Mu En used blue-violet flames to destroy the Horcrux, causing Harry's scar to hurt and show him a vision.
• Mu En took Sirius and Lupin to the cave, where Sirius found Regulus's bones beneath the water.
• Harry described to Hermione a vision of Voldemort speaking as an equal with a bearded old man, and they agreed to tell no one for now.
• Sirius grieved over Regulus's remains and wondered whether his brother would have survived if he had not left the family.