Recaps

Professor Bill Roscoe received an owl-delivered letter and manuscripts from Gavin, then sent him psychology books to support his research. At Hogwarts, Gavin’s experiment of going without spells intensified his emotions, disrupted his sleep and Meditation, and made him reluctant to use his Wand, so he decided to act on a plan involving divided consciousness.

• Professor Roscoe received Gavin’s owl-delivered package, read his request for psychology books, and asked his doctoral students to gather them.
• Gavin received Professor Roscoe’s reply and a stack of books at Hogwarts, where he said his preparations were nearly complete.
• After two weeks without deliberately casting spells, Gavin experienced heightened emotions, insomnia, difficulty with Meditation, and growing resistance to using his Wand.
• Justin noticed Gavin’s unusual irritability in the Hufflepuff Common Room, while Cedric and Cordelia also witnessed him lose control of his temper.
• Gavin recorded his ongoing symptoms in the Room of Requirement and decided to put his preliminary plan based on divided consciousness into practice.

Hermione noticed Gavin avoiding spells and researching psychological and magical disorders, then confronted him about it. Gavin admitted he was trying to help a badly troubled friend, but Hermione realized she lacked the knowledge to assist and was left feeling the gulf between them.

• Hermione noticed Gavin borrowing books about magical abnormalities, emotional suppression, and trauma while avoiding spellcasting in class.
• Hermione confronted Gavin in the library and insisted they discuss his unusual behavior in the corridor.
• Gavin told Hermione he was researching how to help a friend whom Hogwarts and St. Mungo's could not treat.
• Hermione offered to help, but Gavin asked questions about hypnosis and psychological theory that she could not answer.
• Gavin apologized and left, while Hermione stood alone, recognizing that his work went far beyond her school studies.

Hogwarts celebrated Christmas while Gavin continued visiting the lonely Cordelia at St. Mungo’s, and they exchanged gifts and letters. At the Christmas feast, Gavin’s magic stopped growing, signaling that the moment he had awaited had arrived.

• Hogwarts filled with Christmas decorations as the twins caused holiday mischief, while Gavin noticed how isolated Cordelia seemed at St. Mungo’s.
• Gavin’s magic grew more slowly as it approached its limit, and he prepared Christmas gifts for his friends and professors.
• On Christmas morning, Gavin opened presents, including a letter and a Self-Writing Quill from Cordelia, and sent her a reply by owl.
• Gavin joined Harry and Ron at the Christmas feast and shared the holiday meal with them.
• Gavin briefly stopped eating when his magic reached its limit, then realized that the time he had been waiting for had come.

Gavin used hypnosis in the Astronomy Tower to create an Obscurus, then discovered the black magic had become autonomous and was draining his vitality. He was left unable to cast spells and unsure how to change back, thinking of how Cordelia lived with the same condition.

• Gavin went to the Astronomy Tower before dawn and asked Pipi to follow his emergency instructions without notifying a professor.
• Gavin used a hypnosis script and planted five kinds of anchor points to safely approach the experience of becoming an Obscurus.
• In the hypnotic scene, Gavin experienced Elias Thorne’s persecution, the deaths of his family, and the emergence of black magic before a cognitive anchor restored his awareness.
• Gavin found that black magic remained inside him, no longer under his control, and that he could not cast Lumos or sense his normal magic.
• Gavin realized the Obscurus was consuming and replenishing itself by feeding on his magic and vitality, and wondered how Cordelia endured it.

Gavin examined the Obscurus inside his consciousness and found a path back to his normal magic, but a burst of joy caused the Obscurus to erupt and destroy half the Astronomy Tower. Dumbledore arrived to find Gavin unconscious and recognized the black magic as Moran.

• Gavin meditated and discovered that his emotional control had improved, allowing him to observe the Obscurus within his consciousness.
• Gavin followed a river-like connection to a small white whirlpool and realized it represented his normal magic.
• Gavin cast Lumos, confirmed that he could reach his normal magic again, and felt genuine joy.
• Gavin’s emotional surge caused black Obscurus magic to pour through the reopened channel and blast through half the Astronomy Tower.
• The explosion knocked Gavin unconscious, and Dumbledore arrived and called the dark shape Moran.

Cordelia read Gavin’s letter in St. Mungo’s before discovering him badly wounded after an experiment at Hogwarts, which triggered memories of her mother and stirred her Black Magic. Dumbledore calmed her and told the professors that Gavin had tried to become an Obscurus to find a way to save Cordelia, who had less than a year left.

• Cordelia read Gavin’s letter, understood that he had given her next year’s birthday dress early as a promise she would live to wear it, and enjoyed his stories about Hogwarts.
• Cordelia found Gavin unconscious and injured in the ward next door, and the sight of his wounds brought back memories of her mother and caused Black Magic to seep from her.
• Dumbledore reassured Cordelia that Gavin was out of immediate danger and explained that he appeared to have tried turning himself into an Obscurus to help her.
• Dumbledore showed Snape and Professor McGonagall Gavin’s notes, which described his preparations to induce an Obscurus in himself.
• The Sorting Hat explained that Gavin had been sorted into Hufflepuff because of his craving for good food, while Snape continued to argue that Gavin was dangerous.
• Dumbledore told the professors that Gavin had likely risked himself to save Cordelia, and Snape left without answering whether he would have done the same.

After waking in St. Mungo’s, Gavin explained his dangerous experiment to Dumbledore and learned he had to pay for the Astronomy Tower’s repairs. Cordelia’s fear and anger triggered signs of her Obscurus, but Gavin calmed her and promised not to experiment on himself again; they spent the rest of Christmas together while their deeper problems remained unresolved.

• Gavin woke in St. Mungo’s and asked Dumbledore whether anyone had been hurt in the Astronomy Tower incident.
• Gavin told Dumbledore how he had tried to approach becoming an Obscurus and regain control using Anchor Points.
• Dumbledore told Gavin that repairing the Astronomy Tower would cost 3,580 Galleons and left him to face the bill.
• Cordelia woke, became distressed by Gavin’s injuries, and began showing signs of her Obscurus before Gavin held and comforted her.
• Cordelia pleaded with Gavin to stop risking his life, and Gavin promised not to use himself as a test subject again.
• Gavin avoided discussing the experiment as he recovered, and he and Cordelia spent Christmas together in St. Mungo’s.

Over Christmas, Hermione tried to understand Gavin’s dangerous research and interpreted his Oxford sweater as a sign that he believed she belonged there. After returning to Hogwarts, Gavin faced a boisterous welcome and met with Dumbledore, who asked how he had overcome the Obscurus; Gavin began to explain by asking about Buddhist Manas Consciousness.

• Hermione bought psychology books to investigate Gavin’s refusal to let her help, and struggled through them over the holiday.
• Hermione recognized the Oxford crest on Gavin’s blue sweater, packed it carefully, and returned to Hogwarts early, where rumors about an incident at the Astronomy Tower unsettled her.
• Gavin returned from St. Mungo’s by Fireplace, and Professor McGonagall ordered him to attend every class and stay under supervision.
• Students cheered and carried Gavin around the Great Hall, where he denied the rumors and told them only that a magic test had gone wrong.
• Cedric hinted that Gavin’s Christmas present had given Hufflepuff an advantage, while Neville delivered Dumbledore’s summons.
• Dumbledore asked Gavin how he had recovered from becoming an Obscurus, and Gavin asked whether Dumbledore knew about Indian Buddhism and Manas Consciousness.

Gavin explains to Dumbledore his theory that his Obscurus formed from two distinct Manas Consciousnesses, and admits he cannot yet help Cordelia. Dumbledore offers support but imposes consequences for the Astronomy Tower damage, then privately wonders whether Gavin has hidden motives and whether he is right to trust him.

• Gavin explains that the black whirlpool in his Consciousness Space represented a corrupted Manas Consciousness and that turning toward the white whirlpool helped him regain control of his magic.
• Gavin theorizes that the two whirlpools reflected opposing structures of attachment created by his original self and his recent conditioning to hate magic.
• Gavin tells Dumbledore he cannot yet help Cordelia directly, though he may eventually be able to guide or intervene in her consciousness.
• Dumbledore promises to support Gavin's research, assigns him Saturday detention, and makes Pipi responsible for preventing him from taking dangerous risks.
• After Gavin leaves, Dumbledore considers whether Gavin's explanation conceals an interest in Dark Magic and wonders if he should trust him.

Gavin deflected his roommates’ questions about the Astronomy Tower incident while dealing with increased scrutiny from Hogwarts professors, especially Quirrell. His attempt to reach Cordelia’s consciousness through a shared current of awareness nearly dissolved his sense of self, leaving him shaken and uncertain how to continue his research.

• Gavin brushed off Justin and Ernie’s questions about the Astronomy Tower, and Cedric backed him up when Justin complained.
• McGonagall, Flitwick, and Sprout watched Gavin closely in class, while Snape criticized his Potions work.
• Quirrell repeatedly questioned Gavin about Dark Magic and appeared to want a private conversation, but Gavin left for the Headmaster’s Office before Quirrell could speak to him.
• Gavin considered whether Alaya Consciousness could connect him to Cordelia’s mind and tried approaching the river in his Consciousness Space.
• Gavin felt his sense of self begin to dissolve, pulled out of Meditation, and accepted Pipi’s tea as he wondered whether his research was impossible.

After Gavin struggled to explore the Alaya Consciousness, Dumbledore directed him to learn Legilimency and the Super-Sensory Charm, which he quickly mastered. Testing them on his toad revealed that other beings had consciousness spaces too, so Gavin went to St. Mungo’s to examine Cordelia and asked if her earlier offer still stood.

• Gavin wrote to Dumbledore for advice, and Dumbledore arranged for Professor Flitwick to teach him Legilimency and the Super-Sensory Charm.
• Gavin discovered he could enter a breathless, deeply still state during Meditation, then spoke with Hermione and agreed to discuss his research with her.
• Professor Flitwick taught Gavin both spells, and Gavin quickly used Legilimency to read fragments of Flitwick’s thoughts.
• Gavin combined the spells on his toad and entered its consciousness space, finding structures resembling the whirlpool and river in his own mind.
• Gavin decided to examine Cordelia at St. Mungo’s and, when he met her on Saturday, asked whether her offer to let him study her still stood.

Gavin explained his Obscurus research to Cordelia and asked to examine her consciousness, which she agreed to despite Dibby’s concerns. Inside Cordelia’s consciousness space, Gavin found an enormous Abyssal Eye poised to consume her, leaving him to realize her condition was far worse than he had expected.

• Gavin told Cordelia about his experiments, his discovery of manas consciousness, and Dumbledore’s help.
• Cordelia agreed to let Gavin examine her, while Dibby reluctantly stood guard.
• Gavin used the Super-Sensory Charm and Legilimency to enter Cordelia’s consciousness space.
• Gavin discovered a vast ocean-like consciousness space and a fully formed Abyssal Eye looming over Cordelia.
• Gavin saw Cordelia’s fragile self near the Abyssal Eye and realized it was on the verge of swallowing her.

After seeing that Cordelia’s obscurus had nearly become an Abyssal Eye and was consuming the part closest to her true self, Gavin realized his plans needed to change. He began teaching her meditation and emotional control, then shared dim sum with her as Dumbledore quietly watched and left.

• Gavin’s vision of Cordelia’s inner world overwhelmed him, revealing an almost fully formed Abyssal Eye and her consciousness near the edge of being swallowed.
• Gavin asked Cordelia what she had felt, and she said she had noticed almost nothing unusual.
• Gavin set aside further study for the moment and taught Cordelia basic meditation, breathing, and ways to observe her emotions without being ruled by them.
• After they practiced until dinnertime, Pipi brought out dim sum and Gavin and Cordelia shared the meal with Dibby nearby.
• Dumbledore watched Gavin and Cordelia eating through the hospital window, then left without interrupting them.

During detention, Professor McGonagall tested Gavin Gu’s Transfiguration skills, hoping to teach him the dangers of advanced magic, but he mastered increasingly difficult spells with startling ease. He left after vanishing a snail and challenging her understanding of Transfiguration, while McGonagall resolved to make him copy next Saturday.

• Gavin Gu arrived for his scheduled detention, and Professor McGonagall assigned him chapters of Beginner's Guide to Transfiguration to copy.
• After seeing Gavin create a convincing rabbit head from parchment, Professor McGonagall asked him to attempt more advanced magic.
• Gavin transformed a white mouse into a sparrow, and Professor McGonagall continued by teaching him the Vanishing Spell.
• Gavin questioned how the Vanishing Spell could coexist with the Five Exceptions to Gamp's Law, then vanished a snail after deciding he had learned the spell.
• Professor McGonagall dismissed Gavin and warned him not to investigate the Vanishing Spell's limits alone, then decided to make him copy next Saturday.

Gavin struggled to find a safe way to influence Cordelia’s Consciousness Space and accepted that his research had reached a temporary dead end. Meanwhile, Harry suggested asking Gavin for help finding Nicolas Flamel, but Hermione objected and left the library.

• Pipi closely monitored Gavin, so Gavin considered learning the Disillusionment Charm to regain access to the Room of Requirement.
• Gavin concluded that he could observe Cordelia’s Consciousness Space but lacked the ability to change it, and he speculated that Alaya Consciousness might offer an indirect way to influence her.
• Gavin continued his ordinary routine through the week and accepted that he needed to work out a new approach gradually.
• Ron and Hermione argued in the library about Hermione’s Muggle books and their search for Nicolas Flamel.
• Harry suggested asking Gavin for help, Ron agreed, and Hermione objected before gathering her books and leaving.

Quirrell invited Gavin to tea and tried to probe his mind for information about the Astronomy Tower incident, but Gavin redirected the Legilimency into a terrifying mental trap. Shaken by the encounter, Quirrell was ordered by Voldemort to leave Gavin alone for now while continuing to watch him.

• Quirrell invited Gavin to his office for tea and questioned him about the Astronomy Tower incident.
• Quirrell used Legilimency on Gavin, and Gavin guided the intrusion into a mental landscape that overwhelmed Quirrell with painful emotions and a dissolving sense of self.
• Quirrell fought his way out of Gavin's mind, and Gavin left after warning him indirectly that the tea had been good.
• Voldemort scolded Quirrell for wasting power and failing to handle Gavin, then ordered him not to probe Gavin again for the time being.

Gavin searched for ways to influence consciousness and realized the Philosopher’s Stone might offer a way to break magical limits and save Cordelia. He nudged Harry, Ron, and Hermione toward Nicolas Flamel, and they discovered that Flamel owned the Stone.

• Gavin searched the library for magic that could influence consciousness, but found little beyond spells that altered memories.
• When Harry asked about Nicolas Flamel, Gavin connected the Philosopher’s Stone to his need for power beyond ordinary magic and decided he could not wait for the plot to unfold on its own.
• Gavin suggested that Flamel might be a medieval wizard rather than a modern one, prompting Harry, Ron, and Hermione to search records from the Middle Ages.
• Hermione found that Nicolas Flamel was a famous fourteenth-century alchemist who owned the Philosopher’s Stone.

Gavin encouraged Fred and George to investigate what Professor Quirrell kept beneath his turban, leading them to torment Quirrell with increasingly foul smells. On the day of the Quidditch match, Snape and Quirrell were both absent, leaving Gavin to wonder whether the twins’ campaign had changed events.

• Gavin told Fred and George that Quirrell’s turban seemed suspicious, and they began trying to make him remove it.
• Fred and George’s pranks failed to dislodge Quirrell’s turban, and Professor McGonagall punished them for targeting a professor.
• Gavin supplied the twins with fermented herring and pickled auk, which they used to make Quirrell’s life increasingly unpleasant.
• Rumors that Snape would referee the Gryffindor–Hufflepuff match worried Harry and the twins, but Madam Hooch appeared as referee instead.
• Gavin noticed that both Snape and Quirrell were absent, while Ron remarked that Quirrell had seemed to smell something strange lately.

Gryffindor entered the Quidditch match expecting an easy victory, but Cedric Diggory’s Nimbus 2000 and decisive Snitch catch gave Hufflepuff a stunning 150–50 win. Professor McGonagall began investigating Hufflepuff’s success, while Snape’s delight carried into Potions class, where he awarded Cedric a point.

• Before the match, Cedric bet Cho Chang that Hufflepuff would win and hinted that he had improved his equipment.
• Cedric revealed that he had a Nimbus 2000, surprising the crowd, but Gryffindor quickly took control and led 50–0.
• Cedric spotted the Golden Snitch and caught it ahead of Harry, ending the match with a 150–50 Hufflepuff victory.
• Professor McGonagall wondered whether Hufflepuff had developed a new tactic, while Snape celebrated Gryffindor’s defeat.
• During the following week’s Potions class, Snape praised Cedric’s stirring and awarded Hufflepuff a point.

After Hufflepuff’s dramatic Quidditch victory, Cedric used his bet with Cho Chang to ask her out, while Gavin joined the Transfiguration Club and began investigating the limits of magic. The chapter ended with Gavin connecting Polyjuice Potion’s lasting effects after death to a possible way of challenging the Five Exceptions.

• Hufflepuff students celebrated their win over Gryffindor and began discussing the possibility of winning the Quidditch Cup.
• Cedric reminded Cho Chang of their bet and asked her to go somewhere with him over the summer; Cho said she would think about it.
• Gavin attended the Transfiguration Club, where Percy Weasley warned him about Fred and George, and Gavin teased Percy about his relationship with Penelope Clearwater.
• Professor McGonagall proposed that Gavin investigate Food Transfiguration under her supervision and possibly write a paper proving or disproving the Five Exceptions.
• Gavin tried to Transfigure matches into prawn crackers, then connected his failed attempts to the fact that people who died under Polyjuice Potion did not change back.

Gavin realized Cordelia’s Obscurus was growing and decided to accelerate his plans to secure the Philosopher’s Stone while preparing for the risks. He practiced the Disillusionment Charm at night, and Justin saw him partially merge with the corridor wall and convinced himself it was a dream.

• Gavin sensed that Cordelia’s Obscurus had grown, though Cordelia reported no change, and he decided he could no longer wait to advance his plans.
• Gavin showed Fred and George that their prank products were ordinary and provoked them by suggesting they had never seen a real alchemical item, hoping to draw out the Marauder’s Map.
• Gavin planned to get Quirrell to pursue the Philosopher’s Stone while ensuring Harry followed the original path, and he added observing and protecting himself to his preparations.
• Gavin learned the Disillusionment Charm and practiced adjusting it until his body became increasingly difficult to see against his surroundings.
• Justin encountered Gavin partially blended into the corridor wall during his late-night practice and returned to bed, insisting that he must have been dreaming.

Gavin secretly intensified his efforts to wear down Professor Quirrell while practicing the Disillusionment Charm and concealing his movements from Pipi. He also obtained an old parchment from the Weasley twins, and Cordelia’s black hole continued expanding toward its critical point in early July.

• At breakfast, Justin told Ernie and the others that he had seen a flickering wooden plank with Gavin’s face, but Gavin denied being involved and Justin had no proof.
• Fred and George challenged Gavin to uncover the secret of an old parchment; Gavin negotiated a month to solve it and later activated it by saying, “I solemnly swear that I am up to no good.”
• Pipi worried because it could no longer track Gavin, and Gavin persuaded it not to report his Disillusionment Charm practice to Dumbledore, agreeing to leave a note when he disappeared.
• Gavin continued using the twins’ pranks and his own hidden disturbances to wear down Quirrell and push him toward acting sooner.
• At St. Mungo’s, Gavin found that Cordelia’s black hole was expanding steadily and estimated it would reach its critical point in early July; Cordelia noticed his distraction and warned him not to get hurt.

Gavin followed Quirrell at night but stopped to restrain Hagrid’s dragon, Norbert, and learned that Hagrid had been tricked into revealing Fluffy’s weakness. After Dumbledore replied that he trusted Snape, Harry, Ron, and Hermione decided they would investigate the Philosopher’s Stone themselves, while Gavin agreed to watch Snape.

• Gavin followed Quirrell toward the castle doors but was charged by Norbert outside Hagrid’s Hut and restrained him with a Transfigured chain.
• Hagrid, Harry, Ron, and Hermione emerged and learned that Norbert had taken to Gavin, who asked Hagrid where the dragon egg came from.
• Hagrid described the cloaked stranger who gave him the egg and admitted that Fluffy, the three-headed dog guarding something at Hogwarts, liked music.
• Harry, Ron, and Hermione suspected Snape was after the Philosopher’s Stone, and Gavin advised them to write to Dumbledore while offering to watch Snape.
• Dumbledore replied, “I trust Snape,” and Harry, Ron, and Hermione decided they would have to investigate on their own.

Gavin followed Quirrell into the Forbidden Forest and tried to stop him from killing a Unicorn, but Voldemort’s power overwhelmed him. Hagrid’s arrival drove Quirrell away, and Gavin left injured with the Unicorn alive, resolved to prepare better for their next encounter.

• Gavin tracked Quirrell from Hogwarts into the Forbidden Forest and followed him toward a Unicorn.
• Quirrell bound the Unicorn and prepared to attack it, so Gavin cast spells to disrupt him and revealed his presence.
• Quirrell unleashed a powerful blast that broke Gavin’s concealment and threw him against a tree.
• Hagrid arrived with Fang, and Quirrell fled before he could reach the Unicorn.
• Fang recognized Gavin and exposed his hiding place, so Gavin used the twins’ Dungbomb to distract Fang and Hagrid while escaping.
• Gavin assessed his injuries at the forest’s edge and left after confirming that Quirrell had failed to kill the Unicorn.

Quirrell, pushed to his limit by Voldemort, was ordered to take the Philosopher's Stone, while Gavin helped Hufflepuff defeat Slytherin by preparing the team to exploit their focus on Cedric. After the victory, Gavin visited Cordelia and learned she had recently been sleeping unusually long, though he found no change in her condition.

• Voldemort told Quirrell that his body would not last until June and ordered him to take the Philosopher's Stone that night.
• Gavin warned Cedric that Slytherin would plan around his two quick Snitch catches, then agreed to coach the Hufflepuff team after Cedric brought the players to him.
• Gavin trained Hufflepuff to exploit gaps in Slytherin's defense while Slytherin concentrated on containing Cedric.
• Cedric feinted past the Slytherin Seeker and caught the Golden Snitch, giving Hufflepuff a 180-to-zero victory.
• Ron and Hermione discussed Hufflepuff's success, while Harry watched Cedric as a rival to remember.
• Gavin visited Cordelia, learned she had slept unusually long several times over two days, and reassured her that she would someday fly on a broomstick.