Chapter Summaries

Irina was caught teasing Professor McGonagall in her cat form, then joined the first-years’ Flying lesson, where Neville lost control of his broom. Irina cast Wingardium Leviosa to slow his fall.

• Irina told Hermione she had put catnip near Professor McGonagall’s Animagus form, and Professor McGonagall overheard her and ordered her to stay after class.
• Professor McGonagall reprimanded Harry and Ron for being late, while Linley wondered whether Irina was a transmigrator and thought about Quirrell and Voldemort.
• Madam Hooch began the first-years’ Flying lesson, and Irina made her broom rise by kicking it before catching it.
• Neville accidentally launched himself into the air before Madam Hooch’s whistle and slipped off his broom.
• Irina cast Wingardium Leviosa on Neville to slow his fall.

After Neville broke his wrist in a fall, Malfoy took his Remembrall and taunted Harry, prompting an aerial chase that ended with Harry catching it and Professor McGonagall taking him away. Irina punished Malfoy for insulting her, leaving Hermione worried that she would face trouble too.

• Madam Hooch took Neville to the hospital wing with a broken wrist and ordered the other students to stay put.
• Malfoy stole Neville’s Remembrall and flew off, so Harry chased him while Hermione tried to stop them.
• Irina silently froze Malfoy’s broom, and Malfoy threw the Remembrall away before crashing to the ground.
• Harry caught the Remembrall just above the grass, and Professor McGonagall angrily marched him away.
• Malfoy insulted Irina and threatened to report her to his father, so Irina used Aguamenti to drown him in water until he begged her to stop.
• Hermione worried Irina would be punished, but Irina joked that another detention would not matter.

Harry accepted Malfoy’s midnight duel challenge, while Linley persuaded Malfoy to honor it instead of tricking Harry by reporting him to Filch. Linley then resumed enchanting the Desert Eagle, beginning work on the core runes for its four Alchemy Formations.

• Malfoy challenged Harry to a midnight wand duel in the Prizes Display Room, and Harry asked Irina to be his second before choosing Ron instead.
• Hermione warned Harry and Ron against sneaking around the castle, but Harry dismissed her concerns.
• Malfoy told Linley he planned to lure Harry into the duel and report him to Filch, but Linley chastised him for disgracing the Malfoy name.
• Malfoy changed his mind and told Crabbe to prepare to accompany him to the duel with Harry.
• Linley resumed alchemy on the Desert Eagle, carving the core runes for the Dexterity, Lightness, Precision, and Reinforcement Alchemy Formations.

Harry, Ron, Hermione, and Neville sneaked into the Prizes Display Room, where Hermione knocked out Malfoy and restrained Crabbe and Goyle before Filch chased them into a locked room. Irina helped them get inside, but they found themselves face-to-face with a towering Three-headed Dog.

• Harry and Ron went to the Prizes Display Room with Hermione and Neville, where they confronted Malfoy, Crabbe, and Goyle.
• Malfoy challenged Harry to a duel and forced him to dodge spell after spell until Hermione stepped in as Harry's assistant.
• Hermione struck Malfoy unconscious with a levitated trophy, then bound Crabbe and Goyle with Full Body Bind spells.
• Mrs. Norris spotted the group, and Harry, Ron, Hermione, and Neville fled as Filch pursued them.
• Hermione opened a locked door and pulled Irina inside with the others, where they discovered a Three-headed Dog filling the room.

Harry and his friends fled after discovering a three-headed dog guarding a trapdoor, while Linley finished an alchemy formation and became interested in analyzing Harry's new Nimbus 2000. The chapter left Harry and Ron eager to hide the broomstick in their dormitory.

• Harry and his friends escaped the room with the three-headed dog, and Irina confirmed that it guarded a trapdoor.
• Hermione pointed out the trapdoor, leading Harry to suspect it concealed the package from Vault 713.
• Malfoy complained to Linley about losing to Hermione and vowed to practice before seeking revenge.
• Linley completed an alchemy formation centered on the Dexterity attribute and went to bed at two in the morning.
• A package containing a Nimbus 2000 arrived for Harry, and Linley considered buying one to study its alchemy formations.
• Harry and Ron hurried to take the Nimbus 2000 to their dormitory so they could hide it.

Linley worked to enchant the Desert Eagle and secretly study alchemy while Irina practiced wandless ice magic. During Charms class, Hermione mastered the Levitation Charm, and Ron’s wounded pride led him to insult her, prompting Irina to scold him and chase after the crying Hermione.

• Linley finished enchanting the Desert Eagle and copied an alchemy book from the Restricted Section, planning to enchant all one hundred bullets before Halloween.
• Irina failed to master wandless magic but learned to conjure and shape small pieces of ice without her Wand.
• Professor Flitwick taught the first-years the Levitation Charm, and Irina silently cast it to earn praise and exemption from practice.
• Ron struggled with the spell, and Hermione corrected his pronunciation before demonstrating the charm by levitating both a feather and a table.
• Ron insulted Hermione after class, and Irina rebuked him for his fragile pride before hurrying after Hermione as she cried.

Linley anticipated Quirrell’s troll warning and slipped away to look for Irina Lowell and Hermione, while Irina found herself trapped with Hermione in a bathroom as the Troll arrived. Irina tried to fight it and get Hermione to safety, but ended the chapter sliding beneath its club swing.

• Harry and Ron learned that Hermione and Irina were missing, then forgot their worries when they entered the decorated Great Hall.
• Quirrell announced that a Troll was in the underground classrooms, and Dumbledore ordered the prefects to lead students back to their dormitories.
• Linley noticed that Hermione and Irina were absent, cast a Disillusionment Charm, and quietly left the Slytherin group to find them.
• Irina led the tearful Hermione toward the Great Hall, but the Troll entered the girls’ bathroom before they could get away.
• Irina lifted Hermione out to Harry and Ron, then attacked the Troll with Glacier Spells that only frosted its resistant skin.
• The Troll swung its club at Irina, who slid beneath it with a sliding tackle.

Irina and Hermione tried to hold off the Troll until help arrived, but Hermione was knocked unconscious and Irina nearly fell to its club. Linley appeared, rescued Irina, and killed the Troll with his metal blocks, flames, and transfigured vines.

• Irina escaped the bathroom and joined Harry, Ron, and Hermione, then slowed the pursuing Troll while Harry and Ron went to find the professors.
• The Troll broke free of the frost and struck Hermione into a wall, leaving her unconscious.
• Irina exhausted her magic attacking the Troll with ice, then stumbled and could not dodge its club.
• Linley emerged from the shadows, knocked the club away, and gave Irina a healing potion.
• Linley bound and burned the Troll while his metal blocks fired golden beams, eventually blasting apart its head.
• Irina approached the dead Troll and vomited at the sight of its remains.

After a mysterious Slytherin upperclassman defeated the Troll and saved Irina and Hermione, Professor McGonagall questioned the students and awarded House points. Irina later rebuked Ron for complaining that Slytherin received credit, reminding him that she and Hermione would have died without the upperclassman.

• Linley cast the Disillusionment Charm and left after defeating the Troll.
• Harry and Ron returned with Irina, and Professor McGonagall and Professor Snape arrived to find the Troll dead while Quirrell fainted.
• Irina told Professor McGonagall that a black-haired Slytherin upperclassman had saved them, and Professor Snape awarded Slytherin 30 points.
• Irina explained why she and Hermione had been in the bathroom, while Ron and Harry admitted their mistakes; Professor McGonagall deducted 30 points from Gryffindor and awarded it 25 points.
• As Irina carried Hermione away, Ron complained that she had given Slytherin the credit, and Irina reminded him that she and Hermione would already be dead without the upperclassman.

After the Troll attack left Hermione badly injured, Irina thanked the Slytherin senior who had helped them and learned his name was Lynn Roll. Seeing Irina’s interest in his wandless magic, Lynn was asked to teach her the Glacier Spell.

• Ron realized he had been unfairly hostile toward the Slytherin senior, apologized to Irina, and followed her as she carried Hermione to the hospital.
• Madam Pomfrey treated Hermione’s severe injuries and kept her in the hospital for observation; Linley returned to the Slytherin common room and considered whether Irina might be a transmigrator.
• Irina visited Hermione the next morning, learned she was recovering, and then saw Linley signal her to meet him outside the castle.
• Linley asked about Hermione, advised Irina to be careful at Hogwarts, and introduced himself as Lynn Roll.
• Irina asked Lynn whether he had used wandless magic against the Troll and requested his help learning to cast the Glacier Spell without a wand.

Linley shared his Wandless Magic insights with Irina, while Harry and his friends grew closer and began investigating Professor Snape’s injured leg. The chapter ended with Harry discovering Snape treating a blood-soaked wound as he complained about keeping an eye on three heads.

• Linley explained Wandless Magic to Irina, who thanked him for his guidance.
• As winter arrived, Harry prepared for his first Quidditch match with help from Irina, Hermione, and Ron.
• Professor Snape confiscated Harry’s Quidditch book and limped away, prompting Hermione and Irina to suspect his wound came from the three-headed dog.
• That night, Harry and his friends went to the staff room to investigate Snape’s injury.
• Harry saw Snape bandaging a mangled leg while Filch assisted him, and heard Snape complain about watching three heads at once.

After Harry concluded that Snape had let the Troll into Hogwarts, Linley secretly planted a remotely triggered Alchemy Bomb beneath Quirrell’s seat at the Quidditch pitch. The students gathered for Harry’s match, leaving Linley among the Slytherins and Harry among the Gryffindors as the game was about to begin.

• Harry told Irina and Hermione that Snape’s wound and his trip toward the Three-headed Dog proved Snape had let the Troll in to distract everyone.
• Harry swore that his Nimbus 2000 would be smashed by the Whomping Willow if Snape had not released the Troll, and Hermione could not refute his reasoning.
• Linley used a Disillusionment Charm to reach the Quidditch stands before dawn and planted a blast-contained Alchemy Bomb beneath Quirrell’s chair.
• Linley returned to Hogwarts Castle while Harry worried about the match and Irina teased him about his nerves.
• At eleven, the students and teachers gathered at the pitch; Irina joined Hermione and the Gryffindors, while Linley took the seat Malfoy had saved for him in the Slytherin section.

During the Gryffindor-Slytherin Quidditch match, Harry chased the Golden Snitch while Slytherin fouls disrupted the game. When Harry’s broom suddenly began bucking beneath him, Linley and Irina suspected Quirrell was responsible.

• Linley sat beside Malfoy as the Gryffindor-Slytherin Quidditch match began.
• Angelina Johnson scored for Gryffindor after Bludgers disrupted both teams’ attacks.
• Harry and Terence Higgs chased the Golden Snitch until Marcus Flint deliberately collided with Harry and Madam Hooch awarded Gryffindor a free shot.
• Harry’s Nimbus 2000 suddenly shook violently as he avoided a Bludger.
• Linley and Irina looked toward the High Table and each suspected Quirrell was behind Harry’s malfunctioning broom.

Harry’s broom went out of control during the Quidditch match, and Hermione and Irina suspected Snape and Quirrell of casting spells at him. Linley detonated an alchemical bomb beneath Quirrell, leaving him badly injured and carried to the hospital while Voldemort berated him.

• Harry’s Nimbus 2000 twisted wildly and threw him off, leaving him dangling from the broom as Hermione and Irina searched the stands for whoever was casting a spell.
• Hermione and Irina spotted Snape and Quirrell watching Harry, while Ron mistakenly concluded that Snape was cursing Harry and Quirrell was trying to save him.
• Irina headed toward the High Table, intending to interrupt Quirrell’s spell, as Linley triggered the alchemical bomb beneath Quirrell’s chair from the Slytherin camp.
• The bomb exploded and launched Quirrell into the air, but McGonagall caught him with a Levitation Charm before he hit the ground.
• Gryffindor students took the badly injured Quirrell to the hospital, Voldemort condemned him, and Malfoy exclaimed that Quirrell had exploded.

Quirrell was blasted away during the Quidditch match, but Harry caught the Golden Snitch and Gryffindor won. At Hagrid’s Hut, Hagrid realized that Harry, Ron, Hermione, and Irina knew about Fluffy, the dog guarding the Philosopher’s Stone.

• Snape stopped casting the counter-curse and patrolled the stands after Quirrell was blasted away, while Hermione accused Irina of attacking him and Irina denied it.
• Harry caught the Golden Snitch with his mouth, giving Gryffindor a 170–60 victory despite Flint’s protest.
• Linley left the match and returned to Hogwarts Castle to prepare the Mana Suppression Flame.
• At Hagrid’s Hut, Ron accused Snape of attacking Quirrell, and Hermione and Irina shared their suspicions that Snape had tried to get past the Three-headed Dog.
• Hagrid asked how the group knew about Fluffy, exposing that they had discovered the dog guarding the Philosopher’s Stone.

Hagrid accidentally revealed that the three-headed dog guarded something connected to Nicolas Flamel, and Irina identified it as the Philosopher’s Stone. A month later, as Christmas approached, Linley met the Weasley twins and Irina outside the snow-covered castle.

• Hagrid insisted Snape would never try to kill a student, warned Harry and his friends to stop investigating, and accidentally mentioned Nicolas Flamel.
• Irina told Harry, Ron, and Hermione that Nicolas Flamel had invented the Philosopher’s Stone, which could turn metal into gold and create the Elixir of Life.
• Harry, Ron, Hermione, and Irina suspected Snape wanted the Stone and agreed to keep a close watch on him, while Irina also remained wary of Quirrell.
• Over the following month, Linley refined more Mana Suppression Flame, while the Weasley twins studied his alchemy books and learned to inscribe simple series-connected Alchemy Formations.
• The Weasley twins introduced Irina Lowell to Linley, noting that they seemed to already know each other.

Linley spent the days before Christmas watching Irina retaliate against Fred, helping decorate the Great Hall, and opening his presents on Christmas morning. His final gift from Valison Green left him stunned when he recognized the three pineapple-shaped objects inside as grenades.

• Irina showed Linley her progress with Wandless Magic, then froze Fred with Glacier Spells after he threw a snowball at her.
• Linley helped the Transfiguration Club decorate the Great Hall, creating miniature Christmas trees with magic.
• On Christmas morning, Linley opened gifts from his mother, professors, the Weasley twins, Mrs. Weasley, Irvin Fleury, and Irina.
• Linley opened Valison Green's final gift and found three objects he recognized as grenades.

Linley received Mk2 grenades from Teacher Green and planned to strengthen them with alchemy, while Irina opened her Christmas gifts and wondered whether Rory had changed the Weasley twins’ alchemy studies. At the Hogwarts Christmas feast, Harry tried on his inherited Invisibility Cloak, and Irina, Harry, and Ron enjoyed the magical crackers and festivities.

• Linley read Teacher Green’s letter, put away the three Mk2 grenades, and planned to enhance them with a Strengthened Alchemy Formation.
• Irina opened Fred and George’s Canary Cream Biscuits, turned into a canary for a minute, and suspected Rory’s alchemy lessons had helped the twins invent them early.
• Irina received a model Flying Broomstick from Harry, Wizard Chess from Ron, and Chocolate Frogs from Hermione, while Harry tried on his family’s permanent Invisibility Cloak.
• At the Christmas feast, Irina opened nearly a hundred magical crackers as Harry and Fred set one off, releasing blue smoke, an admiral’s hat, and white mice.
• Hagrid drank heavily and kissed Professor McGonagall on the cheek, and Irina, Harry, and Ron left the feast with piles of gifts and snacks from the crackers.

Irina coaxed Harry into the Restricted Section and followed him to an abandoned classroom, where they discovered the Mirror of Erised. Harry saw his parents in the mirror and realized it reflected his deepest desire rather than bringing them back to life.

• Irina startled Harry while he tested his Invisibility Cloak in the Gryffindor Common Room, freezing him with a spell before thawing him.
• Irina persuaded Harry to use the cloak to enter the library's Restricted Section, where a screaming book sent them fleeing together.
• Harry and Irina hid in an abandoned classroom and found the Mirror of Erised.
• Harry saw his parents and other family members reflected behind him, though no one stood there when he turned around.
• Irina told Harry to read the mirror's inscription backward, and Harry understood that the image showed his desire to live with his parents.

Harry, Irina, and Ron each saw their desires in the Mirror of Erised, but Dumbledore warned Harry against becoming obsessed with it and planned to move it. After Harry left, Dumbledore confronted the hidden Linley, who said he still wanted to use the mirror.

• Harry and Irina looked into the Mirror of Erised and saw, respectively, Harry's family and Irina's former life.
• The next evening, Harry and Ron returned to the mirror, where Ron saw himself as Head Boy and a Quidditch champion; he then decided not to visit again.
• Harry went back to the abandoned classroom alone on the third night and found Dumbledore waiting for him.
• Dumbledore explained the mirror's dangers, told Harry he would move it, and asked him not to seek it out again.
• After Harry left, Dumbledore addressed the hidden Linley, who revealed himself and said he could still make use of the mirror.