Chapter Summaries

Harry argued that he should draw Voldemort’s attention away from the crowded Quidditch World Cup, but the adults left the plan undecided pending Dumbledore’s advice. Meanwhile, Andy’s magic neared its final stabilization, and he decided to leave his retreat and see what had happened in his absence.

• At dinner, Lupin explained that the Ministry planned to hold the Quidditch World Cup to protect its reputation and seek cooperation, despite the danger of a possible attack.
• Harry learned that Snape had joined the meeting and asked Sirius to take him to the World Cup.
• Molly opposed Harry attending, while Harry insisted he could not avoid Voldemort and offered to draw his attention; Sirius and Lupin volunteered to accompany him.
• The adults left the question of Harry’s plan unresolved and agreed they still needed to consult Dumbledore.
• Andy observed that his mind and magic were nearing their final fusion, but he could no longer sense the process, so he decided to go out and see whether people still told stories about him.

Andy discovered that his mind and magic power had fused, then tested his newfound strength at the seaside and unleashed a massive blast. He left confident that his power could rival the strongest wizards.

• Andy noticed that his Mind stat had disappeared and his Magic Power stat had increased, confirming that the fusion had succeeded.
• Andy told Helen he was going out to test a new spell, and she allowed him to go as long as he stayed away from home if it got noisy.
• At the seaside, Andy found that holding his wand made his magic power active and easy to sense, while putting it away made the power seem still.
• Andy fired an orange-red fireball into the ocean, creating a huge explosion that sent seawater dozens of meters into the air and nearly knocked him over.
• Andy concluded that the Obscurus was not weak and believed few people in the Wizarding World could match him.

Andy tested his newly fused mind and magic, then questioned whether the Obscurus carried hidden dangers. Grindelwald explained that the Obscurus was considered dark magic because it affected its host’s emotions, leaving Andy to wonder how that fit with kind Obscurials like Credence and Ariana.

• Andy tested his new power by casting spells at the seaside and found his magic immense, controlled, and smooth.
• Andy reconsidered three possible dangers of the Obscurus and concluded that he could not use other Obscurials’ experiences to judge his own fusion.
• Andy used the Two-Way Mirror to tell Grindelwald he had succeeded but did not know whether the fusion had hidden dangers.
• Grindelwald asked how Andy felt and explained that the Obscurus was considered dark magic because it affected its host’s emotions.
• Andy asked Grindelwald how that explanation fit with Credence and Ariana being kind people.

Andy told Grindelwald how he fused with an Obscurus and asked whether the fusion could harm him. Grindelwald judged the fusion spiritually sound but warned that the Obscurus might consume the host’s vitality, leaving Andy concerned about which caused an Obscurial’s death.

• Andy described his good health after fusing with the Obscurus and listed possible explanations for the lack of backlash.
• Andy explained how fear for his family and the pressure of his reputation had led him to suppress his magic during magical eruptions.
• Grindelwald compared Andy’s fusion with the conditions that create an Obscurus and concluded that Andy’s Obscurus would not turn against its host.
• Grindelwald suggested that the Obscurus might absorb some of its host’s nutrients to survive.
• Andy asked whether a host’s death caused the Obscurus to leave or whether the Obscurus’s departure caused the host’s death.

Andy and Grindelwald discussed whether an Obscurus could harm its host, then Andy failed to trigger an emotional breakdown and realized his strong Will might suppress the dangers within him. Grindelwald recognized that Andy’s fused mind and magic could give his will even greater control over the Obscurus.

• Andy wondered whether an Obscurus absorbed its host’s life force and decided he should ask Dumbledore about Credence and Obscuruses.
• Grindelwald described how an Obscurus emerged when an Obscurial suffered an emotional breakdown, and Andy tried to transform but could not make himself break down.
• Andy explained that his magic had fused with his mind and concluded that he could no longer deceive his magic.
• Andy connected his high Will stat to his resistance against magical dangers and asked Grindelwald whether strong will could suppress an Obscurus’s hidden dangers.
• Grindelwald agreed that will could resist Dark Arts and realized that Andy’s fused mind and magic might let his will suppress the Obscurus.

Andy discussed magic, Death, and the Deathly Hallows with Grindelwald, then went to the Hog's Head to seek Dumbledore's advice about love and Credence. Dumbledore arrived and led Andy upstairs to talk.

• Andy wondered whether magic belonged to this world and concluded that his magic attribute should not exceed his will attribute.
• Andy asked Grindelwald whether Death existed and suggested they investigate its secrets together, but Grindelwald declined to join him.
• Andy Apparated to Hogsmeade and visited the Hog's Head, where Aberforth said Dumbledore was not there and challenged Andy about whether he understood his brother.
• Dumbledore entered the pub just as Andy was leaving and invited him upstairs to talk.
• Dumbledore admitted that Aberforth neglected the pub's cleanliness and showed Andy a room he said Aberforth cleaned every day.

Andy visited Dumbledore and heard the painful story of Ariana’s childhood and death before asking about the Obscurus and the Power of Love. Dumbledore explained love as a pure magical power, but Andy remained unsure how it could fuse the mind with magic.

• Andy saw Ariana Dumbledore’s portrait and hesitated to question Dumbledore about her.
• Dumbledore recounted how Ariana lost control of her magic after Muggle boys hurt her, how his father was sent to Azkaban, and how Ariana was fatally struck during a fight between Dumbledore, Aberforth, and Grindelwald.
• Andy admitted that he had succeeded in his research and described his concerns about the Obscurus, willpower, and Magical Transformation.
• Dumbledore said love was a pure emotion and magical power that could make someone sacrifice everything for a loved one.
• Andy interpreted love as a form of Mind Power but questioned how that explained the mind fusing with magic.

Andy questioned Dumbledore about love’s connection to magic and the mysteries surrounding the Death Dimension, then learned how willpower and a living body affected the dangers of magic fusing with the mind. He left reassured about his own safety and resolved to strengthen his attributes while investigating the world’s secrets.

• Andy asked whether love had a special relationship with magic and proposed that souls carried love into the Death Dimension after death.
• Andy connected the locked room holding the Power of Love, the Deathly Hallows, and the archway to the Death Dimension, and considered investigating the mirror from Azkaban.
• Dumbledore admitted he had no answers about the nature of love, but explained that ghosts lacked Mind Power and that a living body was necessary to possess it.
• Dumbledore told Andy that a powerful will could offset magic’s negative effects and warned him to remember that an Obscurus was a magical parasite.
• Andy studied his attributes and concluded that raising his Constitution and maintaining his Will would protect him from the dangers of magic fusion.
• Andy thanked Dumbledore and set a goal of raising all his attributes to ten while pursuing the truth about the Death Dimension and magic.

Andy considered researching love and its possible connection to magic, the Death Dimension, and a well-organized mind. Dumbledore then asked for his help and brought him to Grimmauld Place, where Sirius confronted them about their absence and the approaching World Cup Final.

• Andy reflected on how the fusion of mind and magic had increased his magical attack power and considered investigating love as a source of magical power.
• Andy wondered whether Dumbledore was still searching for truths about love and death, and what it meant to have a well-organized mind.
• Dumbledore asked Andy for help and Apparated with him to Grimmauld Place.
• Sirius welcomed Dumbledore and Andy, complained that they had been absent, and worried that they still had no plan for the World Cup Final.
• Andy said he had never joined Sirius's organization and asked whether it paid salaries, leaving Sirius and Dumbledore speechless.

Andy and Harry joined Dumbledore on a secret mission to investigate one of Voldemort’s Horcruxes, which Dumbledore believed was hidden in a cave on a remote island. As Dumbledore prepared to enter, Andy stopped him and asked to make preparations first.

• Andy reunited with Harry and the Weasley family at the Phoenix Society headquarters, where Dumbledore said he needed Harry for a confidential matter.
• Andy remembered that Lupin had survived a year under Voldemort’s curse while using the Invisibility Cloak, and learned that Lupin would not return as a professor.
• Sirius revealed that he would teach next term and had invited Snape to help organize the Duel Club.
• Dumbledore, Andy, and Harry Apparated to a rocky island, where Dumbledore explained that Voldemort had taken Hepzibah Smith’s locket and hidden a Horcrux in the cave.
• Andy stopped Dumbledore before they entered the cave and asked to make preparations.

Andy, Dumbledore, and Harry entered the cave hiding Voldemort’s Horcrux and faced a series of obstacles meant to weaken intruders. Andy ignored the intended route and unleashed Fiendfyre into the pool, while Dumbledore hoped destroying the Horcrux would let Harry glimpse Voldemort’s memories and learn where the others were.

• Andy warned Harry that Voldemort’s Horcrux would be protected by traps and powerful cursed magic, then followed Dumbledore into the cave.
• Dumbledore opened the stone entrance with specially prepared blood, and the three found a pool with a platform at its center.
• Andy discovered that neither flight nor swimming could cross the pool, while Dumbledore summoned a boat that could carry only one powerful wizard and Harry.
• Andy reasoned that the obstacles were designed to weaken intruders and cast Fiendfyre into the pool to destroy whatever lay beneath it.
• Dumbledore hoped that destroying the Horcrux would unsettle Voldemort and help Harry glimpse memories revealing the locations of the other Horcruxes.

Andy and Dumbledore helped Harry reach the basin holding Voldemort’s Horcrux, where Harry learned that someone had to drink the potion covering it. Andy returned with an Acromantula to sacrifice instead, leaving Harry and Dumbledore to proceed with the potion.

• After Andy burned away the pool’s hidden danger, Harry and Dumbledore sailed across to the platform while Andy stayed behind.
• Harry called out that they had to drink the potion in the basin to retrieve the Horcrux, and Andy suggested using a captured Death Eater instead.
• Harry asked Andy to find an animal because the boat could not make another trip, so Andy went to the Forbidden Forest and caught an Acromantula.
• Andy returned to the platform with Kreacher and the Acromantula, reassuring Harry that he had brought the creature rather than Kreacher.

Andy, Dumbledore, and Harry emptied the potion guarding Voldemort’s locket and discovered a note signed R.A.B., who had taken the real Horcrux. Back at Grimmauld Place, Dumbledore asked Sirius to show him Regulus’s bedroom, and Sirius revealed his full name was Regulus Arcturus Black.

• Andy realized the potion replenished only within the cave and had Kreacher pour it outside until the basin was empty.
• Andy found a locket and a note signed R.A.B. saying the writer had taken the real Horcrux to destroy it.
• Andy suspected R.A.B. was a Death Eater and suggested Snape’s list could help identify him.
• Dumbledore returned with Andy and Harry to Grimmauld Place and asked Sirius to take him to Regulus’s bedroom.
• Sirius said Regulus’s full name was Regulus Arcturus Black.

Sirius, Dumbledore, and the others investigated whether Regulus was R.A.B., and Kreacher revealed how the Mysterious Man had used him to hide the locket Horcrux. The chapter ended with Kreacher recounting how he escaped the cave after the Inferi dragged him underwater.

• Harry recognized Regulus's initials as R.A.B., and Dumbledore showed Sirius the note addressed to the Dark Lord.
• Sirius led the group to Regulus's room, where Dumbledore showed Kreacher the fake locket.
• Kreacher recognized the locket as Regulus's box and began harming himself until Sirius ordered him to stop.
• Kreacher explained that Regulus had joined the Dark Lord and later volunteered him to help hide something in a seaside cave.
• Kreacher described drinking the potion in the cave, watching the Dark Lord replace the locket, and being dragged underwater by the dead hands in the lake.
• Harry asked Kreacher whether he had escaped by Apparition.

Kreacher recounted how Regulus Black sacrificed himself to steal Voldemort’s locket Horcrux, leaving Sirius devastated. The group recovered the locket and decided to delay destroying it until they knew how many Horcruxes Voldemort had made.

• Kreacher told Harry and the others that Regulus returned to the cave, drank the potion, and was dragged beneath the water after ordering Kreacher to escape with the box.
• Sirius angrily blamed Kreacher for watching Regulus die, but Dumbledore reminded him that Kreacher had been bound to obey his master’s commands.
• Kreacher revealed that he had kept the locket because he could not destroy it, and Sirius ordered him to retrieve it.
• Andy explained that Fiendfyre had burned Regulus’s remains beneath the pool, and Sirius decided to build him a new tombstone.
• Sirius handed the locket to Dumbledore, who said they should postpone destroying the Horcrux until they knew how many Voldemort had made.
• Harry counted four discovered Horcruxes, then included Voldemort’s snake as a fifth, while Andy suggested Voldemort might have chosen seven.

Dumbledore discussed Voldemort’s Horcruxes with Andy, Sirius, and Lupin, then kept the locket and said he had a plan for the Quidditch World Cup. Andy decided to find summer work and went to Borgin and Burkes, where Mr. Borgin refused to hire him; Andy then proposed disguising himself with Polyjuice Potion.

• Dumbledore explained that Voldemort’s Horcruxes had to be destroyed and kept the locket while saying he would handle it when the time was right.
• Harry asked Andy about his summer plans, and Andy said he wanted a job and planned to apply at Borgin and Burkes.
• Andy went to Knockturn Alley, knocked out a dark wizard who tried to abduct him, and entered Borgin and Burkes.
• Mr. Borgin recognized Andy and urged him to leave, fearing Voldemort would retaliate if Andy caused trouble at his shop.
• Andy asked whether Mr. Borgin knew Voldemort’s secret, but Mr. Borgin denied knowing anything and refused to hire him.
• Andy suggested using Polyjuice Potion as a disguise so he could work at the shop.

Andy failed to get a job at Borgin and Burkes, then returned home and reflected on whether he could understand love. He considered using the Resurrection Stone to learn what happened to Dumbledore after death and decided to begin his research by unraveling Dumbledore.

• Andy told Mr. Borgin he would seek work elsewhere, and Mr. Borgin warned that few shops would dare hire him while Voldemort was active.
• Voldemort Apparated to Borgin and Burkes shortly after Andy left.
• Isabel questioned Andy about where he had been, and he said he had visited Dumbledore to ask about magic.
• Andy considered whether he could truly love his family and thought about Harry's sincere feelings.
• Andy wondered if the Resurrection Stone could summon Dumbledore's soul and decided to start his research into love by unraveling Dumbledore.

Andy speculated that Dumbledore’s strength came from love, which let his soul move freely through the Death Dimension, and asked Grindelwald what he thought. Grindelwald initially dismissed Andy’s theory as absurd but began to consider that it might be possible.

• Andy wondered whether Dumbledore had surpassed ordinary magical limits through research into love rather than Magical Transformation.
• Andy called Grindelwald using a Two-Way Mirror and asked what he thought about love.
• Andy argued that Dumbledore sought truth in the Death Dimension and could explore it as a soul.
• Andy proposed that love empowered Dumbledore’s soul and was the power locked away in the Department of Mysteries.
• Grindelwald found Andy’s theory unsupported and absurd at first, but reconsidered whether it could be true.

Andy discussed magic and Dumbledore with Grindelwald, who decided to experiment with Magical Transformation and the fusion of mind and magic for five months. Andy then planned his fourth-year studies and considered how to investigate love and the Department of Mysteries.

• Grindelwald reflected on his history with Dumbledore and speculated that Dumbledore had discovered something about magic.
• Andy told Grindelwald he wanted immortality so he could study every kind of magic.
• Grindelwald decided to spend five months testing Magical Transformation and the fusion of mind and magic, and Andy agreed to wait for his findings.
• Andy planned to raise his constitution attribute to seven, master Magical Transformation, study alchemy, and search the Restricted Section for information about love.
• Andy considered using the locked room in the Department of Mysteries to draw out its personnel, then planned to explore the Death Dimension with his Azkaban mirror and confront Voldemort along the way.

Andy prepared to attend the Quidditch World Cup Final with Harry and the others, bringing Isabel after promising Helen he would keep her safe. At the meeting point, Andy claimed he had grown strong enough to defeat Voldemort, and the group prepared to travel to the stadium by Portkey.

• Andy agreed to take Isabel to the World Cup Final after she promised Helen to stay beside him and obey him.
• Andy picked up Isabel and Hermione and met Harry, Sirius, Mr. Weasley, and Lupin before the match.
• Harry questioned whether it was safe to bring Isabel, but Andy said Voldemort was no match for him.
• Andy reflected that his improved magical attack power could let him beat Voldemort in a direct clash, though the Killing Curse could still kill him.
• Mr. Weasley and Lupin called the group over to use the Ministry Portkey to reach the stadium in Dartmoor.