Chapter Summaries

Amosta visited Knockturn Alley's underground market and watched an old wizard trade Mithril for what he believed was unicorn-related liquid. He recognized that the liquid was a Transfigured fake, leaving the old wizard unaware that he had been deceived.

• Amosta entered the underground market, where magical creatures and dangerous goods were openly traded.
• He found no worthwhile commissions and waited near the commission board.
• Amosta noticed an old wizard whose disfigurement suggested backlash from a failed attempt to create a Horcrux.
• The old wizard traded Mithril to a skinny wizard for silvery liquid, believing it would help him find Unicorns and avoid provoking Dumbledore.
• Amosta recognized that the liquid was Draught of Living Death altered with Transfiguration and Unicorn hairs.

Amosta watched an old wizard die after being deceived with fake Mithril, then let the wizard’s lingering phantom kill the swindler. He claimed the Mithril and met Cacus Fley, a broker working to restore the fallen Foley family’s influence.

• The old wizard drank the Draught of Living Death, lost control of his magic, and melted into a pool of pus.
• Amosta taunted the swindler, and the old wizard’s phantom rose from the puddle and devoured him.
• The phantom blamed Amosta for not warning the old wizard, but Amosta dismissed him as he faded away.
• Amosta retrieved the Mithril and burned away the remains of both men.
• Cacus Fley approached Amosta, and the narration explained how his family had turned to the underground world in hopes of regaining its standing.

Amosta considered several dangerous commissions from Cacus before learning of a job tied to the Chamber of Secrets and the attacks at Hogwarts. Cacus offered to arrange for Amosta to enter the school as an Investigator, and Amosta questioned the risks to his identity as the offer remained on the table.

• Amosta collected seven hundred Gold Galleons for delivering a Cockatrice heart and asked Cacus for another commission.
• Amosta rejected a twenty-thousand-Galleon job to rescue the Lestrange Couple and the Caro Siblings from Azkaban, along with several other unsuitable offers.
• Cacus told Amosta that rumors claimed the Chamber of Secrets had opened and that someone was spreading panic at Hogwarts.
• Cacus revealed that his client wanted Amosta to investigate Hogwarts as an externally hired Investigator and search for Slytherin's supposed treasure.
• Amosta challenged Cacus over how he would protect Amosta's underground identity, and Cacus offered to make an Unbreakable Vow.
• Cacus proposed eight thousand Gold Galleons and the Board of Governors' gratitude, while Amosta remained unconvinced.

Amosta Breen visited the orphanage he was funding and the grave of Grandma Felena before receiving an urgent message summoning him to Hogwarts. He left for the school to investigate the attacks, despite his unease about Dumbledore and his hazy memories of the Harry Potter story.

• Amosta checked the unfinished orphanage building, gave Mrs. Reagan the final payment, and promised to bring Hammer Jr. a gift when he returned in the summer.
• Amosta cleared the snow from Grandma Felena’s grave and told her he would return to Hogwarts to investigate the trouble there for money to support the children.
• Amosta reflected on his past life, his incomplete memories of the Harry Potter story, and the danger of working under Dumbledore’s watch.
• Cacus Fley’s note informed Amosta that the Hogwarts Board of Governors had approved the proposal and required him to arrive before eight that evening to explain his investigation plan to Dumbledore.
• Amosta turned the note into a white carnation, left the graveyard, and Apparated away.

Dumbledore asked Snape to greet Amosta Breen at Hogwarts, prompting Snape to confront him about Harry and the Gryffindors’ investigation. Amosta arrived at the school gates on New Year’s Eve, where Snape came to meet him.

• Snape told Dumbledore that Hermione was stable after Pomfrey treated her.
• Snape accused Dumbledore of tolerating Harry, Ron, and Hermione after they brewed Polyjuice Potion and stole ingredients to investigate the attacks.
• Dumbledore defended the students’ motives and said he was observing them rather than indulging them.
• Dumbledore asked Snape to welcome a guest and revealed that it was Amosta Breen, one of Snape’s most admired students.
• Amosta arrived at Hogwarts at 7:40 p.m. on December 31, and greeted Snape at the gates.

Amosta returned to Hogwarts and met with Dumbledore after Snape warned him about the dangers surrounding the school and urged him to leave. Dumbledore welcomed him with a relaxed conversation about magic and Amosta’s studies, then raised Snape’s past concerns about his research into Dark Magic.

• Snape reminded Amosta that his exploration of Greek ruins had coincided with a break-in at a Norwegian dragon reserve, and Amosta left the connection ambiguous.
• Snape warned Amosta that Hogwarts was dangerous and advised him to leave Britain until matters had settled, but Amosta said he understood the risks.
• Dumbledore welcomed Amosta to his office, offered him aged Ogden's Old Firewhisky, and spoke about the value of studying magic beyond pursuing power or wealth.
• Amosta told Dumbledore that his Muggle upbringing had made him appreciate magic as a miracle, and Dumbledore praised his devotion to knowledge.
• Dumbledore recalled that Snape had worried about Amosta's Dark Magic research when he was a student, and said Snape's concerns had been justified.

Amosta examined Colin Creevey and Justin Finch-Fletchley after they were petrified, concluding that an abnormal magical creature—not a wizard—was likely responsible. Hermione, secretly listening in the Hospital Wing with catlike features from her failed transformation, was discovered by Snape and Amosta.

• Amosta left Dumbledore’s office and spoke with Snape, who questioned what Dumbledore had learned from him.
• Hermione read a medical book in the Hospital Wing, hoping to find a way to make the fur on her face disappear sooner.
• Amosta examined Colin Creevey and Justin Finch-Fletchley and told Snape that abnormal magic had petrified them through their eyes.
• Amosta and Snape suspected that a creature from the Chamber of Secrets had attacked the boys, and Amosta wondered why it had spared their lives.
• Snape pulled Hermione from behind the ward door, revealing her cat ears, fur, and tail to Amosta.

Hermione Granger was caught eavesdropping in the Hospital Wing after a botched human transformation, but Amosta Breen persuaded Snape to let her go without punishment. Later, Amosta questioned Snape about the attacks and learned that Harry Potter had been a witness to the first two incidents.

• Amosta helped the transformed Hermione up while Snape demanded to know why she looked that way and why she had been listening.
• Hermione admitted that she had attempted human transformation and explained that she had gone looking into the disturbance because she feared another Chamber of Secrets attack.
• Amosta introduced himself as an investigator and convinced Snape not to punish Hermione for her transformation or eavesdropping.
• Hermione asked whether Amosta could cure Colin and Justin, and he told her Dumbledore already had a way to protect them.
• Amosta spent the night in Snape's quarters, questioned him about the attacks, and learned Harry had been the first witness after two of them.
• Snape criticized Harry as arrogant and reckless, and Amosta inferred that Snape's hostility stemmed from Harry's father.

Harry, Ron, and Hermione worried that Investigator Amosta Breen had come to Hogwarts to investigate the attacks and Harry’s Parseltongue, while Hermione feared Snape knew she had stolen potion ingredients. Hermione decided to leave the Hospital Wing in Harry’s Invisibility Cloak so they could investigate Breen’s background.

• Hermione told Harry and Ron that Snape had recognized her and might know she had stolen ingredients for the Polyjuice Potion.
• Harry worried that Investigator Amosta Breen had been sent to investigate the attacks and might lead to his expulsion.
• Ron blamed Snape for bringing Breen to Hogwarts, and Harry suggested asking Mr. Weasley about him.
• Ron said he might write to his family, while Hermione defended Percy and argued with Ron about his prefect duties.
• Hermione put on her boots and told Harry to fetch his Invisibility Cloak so they could investigate where Breen had come from.

Hermione, Harry, and Ron visited Hagrid to ask about Amosta Breen, and Hagrid described Breen’s quiet school years and difficult childhood. Hagrid began explaining a notorious fight Breen caused in the Forbidden Forest during his fifth year.

• Hermione left the castle with Harry and Ron under the Invisibility Cloak to visit Hagrid.
• Harry and Hermione fell into the snow outside Hagrid’s Hut, revealing Hermione’s Cat-Person appearance to Hagrid.
• Harry asked Hagrid about Amosta Breen, and Hagrid said Breen had been a Slytherin in Bill Weasley’s year.
• Hagrid explained that Breen was an orphan who faced cold treatment at school, studied hard, and kept others at a distance.
• Hagrid began recounting the fight Breen caused in the Forbidden Forest during his fifth year.

Amosta’s memories revealed how poverty, caution, and Severus Snape’s quiet help had shaped his solitary years at Hogwarts. After Grandma Felena’s death in 1986, Amosta slipped out of the castle at night carrying her photograph and headed toward the Forbidden Forest.

• Amosta recalled how he had secretly brewed Potions for money and how Snape had discreetly supplied ingredients and advice, earning his trust.
• Amosta remembered that Grandma Felena had died in late November 1986, and that he had returned to school after her funeral to continue his O.W.L.S studies.
• In early December, Amosta quietly left the Slytherin dormitory with a framed photograph of Grandma Felena.
• Amosta passed Bill Weasley in the Entrance Hall as Bill sent a wandering Hufflepuff student back to bed.
• Amosta watched Bill leave, then headed toward the Forbidden Forest, confident his Disillusionment Charm would keep him unseen.

Amosta visited a secluded spot in the Forbidden Forest to burn offerings and speak to his deceased grandmother, Felena, about his past and his regrets. Two Gryffindors mistook the ritual for Dark Magic, and their attack destroyed her photograph, leaving Amosta furious and raising his wand toward them.

• Amosta went deep into the Forbidden Forest, set up Felena's photograph, and burned paper and gold ingots as offerings while sharing memories and secrets with her.
• Prian and Philoya watched Amosta from hiding and decided to punish him, believing he was performing a Dark Magic ritual.
• Prian and Philoya shouted at Amosta and fired a Petrification Curse and a Shattering Curse at him.
• Amosta dodged the spells, but Prian's curse struck the copper basin and Philoya's curse shattered Felena's photograph.
• Amosta saw the photograph burn to ash, turned toward the attackers in fury, and raised his wand.

Amosta blasted Prian and Philoya after confronting them in the Forbidden Forest, then treated Prian’s wounds and let Philoya escape. Charlie Weasley and four other Gryffindors arrived with a petrified Acromantula and demanded that Amosta hand Prian over.

• Amosta conjured a powerful fireball to threaten Prian and Philoya, but shifted its aim after Prian pushed Philoya to safety.
• The blast badly injured Prian and flung Philoya away, and she escaped toward the castle on her broom.
• Amosta treated Prian’s wounds with potions but left his broken ribs for Madam Pomfrey.
• Charlie Weasley and four Gryffindors arrived carrying a petrified Acromantula and found Prian at Amosta’s feet.
• Charlie asked where Philoya was, then ordered Amosta to hand Prian over.

Amosta defended himself against the Gryffindor players in the Forbidden Forest, captured the Acromantula, and knocked the attackers unconscious. As Bill Weasley arrived, Amosta faced the trouble waiting for him back at the castle.

• Amosta used a magical vortex to absorb the Gryffindors' spells as Charlie Weasley and the other players attacked him from their broomsticks.
• Charlie freed the Acromantula, which charged at Amosta after mistaking the wizards for enemies.
• Amosta shrank the Acromantula and sealed it inside a glass bottle.
• Amosta struck the air with his wand, sending out a wave of magic that knocked the Gryffindor players off their broomsticks and unconscious.
• Bill Weasley hurried from the castle grounds toward Amosta.

Amosta tried to take the unconscious students back to Hogwarts, but Bill Weasley confronted him, believing he had harmed Charlie. When an unknown woman ambushed them with Avada Kedavra, Amosta evaded the curse and began a deadly duel with her.

• Bill Weasley arrived and accused Amosta of killing Prian and harming Charlie, then refused to let him leave before the professors arrived.
• Amosta warned Bill that the Forbidden Forest was unsafe and tried to disarm him when Bill attacked with Stunning Spells.
• Amosta broke through Bill’s Protego and knocked him off balance, but a hooded woman ambushed them with Avada Kedavra.
• Bill warned Amosta, who rolled clear of the killing curse and faced the hooded woman as she prepared to attack again.
• Amosta unleashed a torrent of magic that shattered boulders and tore a long fissure through the ground.

Amosta fought a skilled Dark Witch in the Forbidden Forest while trying to keep her Fiendfyre from spreading and protect the Gryffindors. After she attacked Bill and Charlie, Amosta seized an opening and struck at her with Sectumsempra as Snape rushed toward the battle.

• Amosta realized the Dark Witch was trying to kill him and recognized her superior dueling experience, though his powerful improved spells gave him an advantage.
• The Dark Witch unleashed uncontrolled Fiendfyre, and Amosta contained it with golden flames while preventing the fire from consuming the forest.
• Professor McGonagall, Snape, Professor Flitwick, and Professor Sprout hurried toward the Forbidden Forest as they saw the flames and feared for those inside.
• The Dark Witch sent transfigured daggers at Bill and Charlie, but Amosta blocked them with a magical barrier.
• Amosta used the Dark Witch’s momentary distraction to attack her with Sectumsempra, while Snape sprinted toward the sound of his spell.

Amosta watched the mysterious Dark Witch vanish after being struck by Sectumsempra, but collected her blood before the professors arrived. Dumbledore confronted him and demanded his wand, and the chapter ended with Bill reporting that someone had cast the Killing Curse as Snape ordered Amosta to hand over his wand.

• The Dark Witch vanished, leaving blood behind, and Amosta collected it in a vial before Dumbledore arrived.
• Dumbledore extinguished the remaining Fiendfyre and demanded Amosta's wand.
• Amosta resisted Dumbledore's Disarming Charm by conjuring a metal shield, but the impact staggered him.
• McGonagall and Snape arrived, and Snape lowered the petrified Bill from the air.
• Bill told McGonagall that he had seen someone cast the Killing Curse, and Snape ordered Amosta to hand over his wand.

Hagrid told Harry, Ron, and Hermione how Amosta Breen fought a dark wizard in the Forbidden Forest and was later rewarded by Dumbledore. After Harry revealed that Breen had returned as the Ministry’s investigator into the Chamber of Secrets attack, Hagrid panicked and rushed to the castle.

• Hagrid recounted how fifth-year Amosta Breen fought students in the Forbidden Forest while confronting a hidden dark wizard.
• Hagrid said Dumbledore punished Breen but awarded Slytherin four hundred points because Breen had saved eight lives.
• Hagrid explained that Dumbledore and Ministry Aurors searched for the dark wizard but never found him, and that the attack was kept quiet.
• Hagrid recalled that Snape later brought Breen to a Quidditch final after Breen had served detention for a term.
• Harry told Hagrid that Breen had returned to Hogwarts as the investigator for the Chamber of Secrets attack.
• Hagrid panicked, rushed toward the castle, and left Fang buried beneath falling snow.

Amosta received two thousand two hundred Galleons from Snape and went to Hogsmeade to buy three hundred Panoramic Telescopes. He left Dervish-Bans Magical Supplies having negotiated a price of six Galleons each, and began discussing delivery.

• Snape delivered Dumbledore’s payment to Amosta and warned that Dumbledore was curious about his changed eye color.
• Snape told Amosta that Minerva wanted to speak with him about his plans at Hogwarts.
• Amosta visited Dervish-Bans Magical Supplies and examined a Panoramic Telescope, rejecting the Model 185 because he needed the clearer Seeker 190 Model.
• Amosta told Mr. Bans he wanted three hundred telescopes and bargained the price down to six Galleons each.
• Amosta agreed to discuss the delivery time with Mr. Bans.

Amosta returned to Hogwarts after buying Panoramic Telescopes and met Professor McGonagall to discuss his plan for finding the Heir of the Chamber of Secrets. The chapter ended with McGonagall questioning whether monitoring the young wizards’ daily lives was appropriate.

• Amosta negotiated a price of five Galleons and ten Sickles per Panoramic Telescope, and Mr. Bans agreed to prepare three hundred in a week.
• Amosta returned to Hogwarts and went to Professor McGonagall’s office.
• Professor McGonagall welcomed Amosta and recalled how he had changed her opinion of him during his fifth year.
• Professor McGonagall explained that Dumbledore had asked her to arrange Amosta’s accommodation and office.
• Professor McGonagall asked Amosta whether monitoring every aspect of the young wizards’ daily lives was appropriate for finding the Heir of the Chamber of Secrets.