Chapter Summaries

Andy’s published research on his Patronus Charm drew the attention of Hogwarts professors and made him the subject of The Daily Prophet. As the students began discussing his discovery, Andy withdrew to the Room of Requirement, where Hermione brought him breakfast and the newspaper.

• Professor Flitwick showed off Andy’s achievement to the other Heads of House, while Professor McGonagall, Professor Sprout, and Snape reacted to his success.
• The professors treated Andy as a remarkable student, and Joseph Ledi said Andy had surpassed him in Dark Arts Defence.
• Hermione explained that Andy’s paper described how his Patronus could use magic and fight alongside him.
• The Daily Prophet published extensive coverage of Andy’s improved Patronus Charm, and his name spread through Hogwarts.
• Hermione found Andy in the Room of Requirement and offered him breakfast and a copy of The Daily Prophet.

Andy enjoyed the newspaper praise but soon had to face the attention at Hogwarts, where he demonstrated his magical Patronus in Charms Class and helped spark a schoolwide rush to learn the spell. By the end of the day, students throughout the castle were practicing Expecto Patronum.

• Andy read flattering newspaper coverage of himself and told Hermione he would wait for the attention to die down.
• In Charms Class, Andy and Professor Flitwick demonstrated how Andy and his Fat Cat Patronus worked together in combat.
• Professor Flitwick explained the Patronus Charm and showed the class his dove Patronus, while noting that Andy's was the only one known to use magic.
• Hermione summoned an otter Patronus, earning Ravenclaw two points, while the other students failed to produce Patronuses.
• Students repeatedly asked Andy to demonstrate his Patronus, and Hogwarts erupted into a craze for practicing Expecto Patronum.

On Halloween, Andy escaped questions about the Patronus Charm, then confronted Peeves and learned from Dumbledore how the poltergeist had been born from suppressed minds and magic. As they headed to the feast, Andy asked whether negative emotions could produce a counterpart to the Patronus, and Dumbledore began to answer.

• Andy finished copying the books in the Room of Requirement and left for the Halloween feast.
• Peeves ambushed Andy with water balloons, but Andy used the Confundus Charm to subdue him.
• Dumbledore sent Peeves away and explained that it was a Spirit Body born from students' subconscious behavior, pressure, and magic.
• Dumbledore explained that magic came from life and that suppressed magic and the mind could merge into a new Magical Lifeform.
• Andy asked whether negative emotions could produce a counterpart to a Patronus, and Dumbledore began answering by describing intense killing intent.

Andy discussed the connection between emotions, love, and magic with Dumbledore, concluding that love shaped magical power and made the Patronus Charm possible. He left the conversation convinced the theory suited him, then repeated it to a skeptical Snape outside the Great Hall.

• Andy realized intense killing intent combined with magic power formed the Killing Curse.
• Dumbledore explained how brief happy memories rooted in love could sustain a person and help cast the Patronus Charm.
• Andy reconsidered Dumbledore’s claim that love was the most powerful magic and concluded that love influenced magic through the mind.
• Andy and Dumbledore met Snape at the Great Hall entrance, where Snape mocked their discussion.
• Andy told Snape that all magical power came from love, leaving Snape baffled.

Andy and Dumbledore teased Snape before joining the Halloween feast, but the festivities were interrupted when Filch reported that a student had been attacked on the castle’s Eighth Floor. After the professors investigated and McGonagall counted the students, only the victim and Filch were found to have been absent from the feast, leaving Andy and Hermione suspicious of the apparent explanation.

• Andy told Hermione how he had teased Snape with Dumbledore, and she called the joke boring.
• Filch rushed into the Great Hall and reported that a little wizard had been attacked on the Eighth Floor.
• Dumbledore ordered the prefects to lead students back to their dormitories and asked McGonagall to find out who had been absent from the feast.
• Andy told Hermione that he and Dumbledore had noticed nothing unusual when they came down from the Eighth Floor.
• McGonagall discovered that only Justin Fingle-Fletchley and Filch had been absent, and the students began accusing Filch of the attack.
• Hermione questioned why Justin and Filch had both missed the feast, while Andy remained unconvinced that the culprit had been identified.

After realizing the Weasley Twins had used Transfiguration to impersonate Mrs. Norris, Andy watched them confess to Professor McGonagall. Their admission cleared Filch of suspicion in Justin’s attack, though they were punished for their prank.

• Andy guessed that George and Fred had impersonated Mrs. Norris to keep Filch away from the Halloween feast.
• Andy explained the Twins’ prank to Hermione, who recognized his influence on their actions.
• Dumbledore and the professors examined Justin and found that Dark Arts magic had drained much of his life force.
• McGonagall suspected Filch because he had been absent from the feast, but Filch insisted he had been searching for Mrs. Norris.
• George and Fred confessed that they had transformed into Mrs. Norris, clearing Filch of suspicion.
• McGonagall deducted fifty points from Gryffindor, while Dumbledore awarded George and Fred twenty points each for admitting their mistake and helping clear Filch.

After Justin was attacked and left gravely ill, Dumbledore and the professors debated when and how the culprit had drained his life force. Flitwick’s theory that someone needed life force led Dumbledore to suspect Voldemort had hidden a Horcrux at Hogwarts, and he ordered a search of the castle.

• Dumbledore restored some of George and Fred’s lost House points, then McGonagall sent the twins back to their dormitory.
• McGonagall reasoned that Justin’s attack had happened before the feast, while Dumbledore struggled to reconcile that timing with his own observations.
• Snape suspected Joseph Ledi because he was Hogwarts’s only recent outsider, but he had no evidence and did not share his suspicions.
• Sprout and Pomfrey took Justin to the infirmary, and Pomfrey said the caster would need to return the life force to save him.
• Flitwick concluded that the attacker likely needed life force and might strike again, possibly because someone had brought a Dark Arts item into Hogwarts.
• Dumbledore suspected Voldemort had hidden a Horcrux in the castle and ordered the professors and ghosts to search it, assigning the Eighth Floor to himself and Snape.

After Justin Fingle-Fletchley was attacked on Hogwarts’s Eighth Floor, Harry and Ron blamed Snape while Andy and Hermione tried to work out why Justin had been there. Andy suspected the Room of Requirement concealed another secret that might explain the attack.

• Harry insisted Snape had attacked Justin and persuaded Ron that they should keep investigating him despite having no evidence.
• Andy and Hermione reviewed the few clues they had and wondered why Justin, a Hufflepuff, had gone to the Eighth Floor.
• Hermione suggested Justin might have followed Andy after reading about his improved Patronus Charm in the Daily Prophet.
• Andy considered that someone searching for him might have discovered the Room of Requirement, but said that alone would not explain the attack.
• Andy asked Hermione whether the Room of Requirement had another secret that could have prompted the culprit to attack Justin.

Hermione and Andy reasoned that Justin Finch-Fletchley had been attacked after discovering a secret connected to the Room of Requirement. They suspected Ravenclaw’s library might be linked to the room, and left their investigation for another day.

• Hermione concluded that Justin had likely been attacked because he discovered a secret in the Room of Requirement, and warned Andy to be careful.
• Andy agreed that they should inform the professors about the Room of Requirement and its connection to the attack.
• Andy and Hermione suspected Rowena Ravenclaw had built the Room of Requirement and that it might be connected to the Ravenclaw library.
• Hermione proposed that the attacker might have acted impulsively after someone else discovered the secret, and Andy agreed that it was plausible.
• Andy and Hermione decided to return to their dormitories and sleep rather than investigate the library that night.

Andy told Snape that Justin may have been attacked after someone searching for Andy discovered the Room of Requirement, and revealed how to find it. Dumbledore and Snape entered the room to investigate Voldemort’s hidden objects, while Snape wondered whether it could also conceal people.

• Andy told Snape that the Room of Requirement was on the Eighth Floor and might explain why Justin was attacked.
• Hermione explained that students had been searching for Andy’s magic secrets, and Snape said Justin had lost much of his life force.
• Andy revealed that the Room of Requirement appeared after someone walked past the Troll Tapestry three times while thinking of the room they needed.
• Snape told Dumbledore what Andy had said, and Dumbledore agreed they should investigate the Room of Requirement for Voldemort’s Dark Arts items.
• Dumbledore summoned the Room of Requirement by asking for a place to hide things, and Snape wondered whether the room could also hide the little wizard who had searched for Andy.

Dumbledore and Snape searched the Room of Requirement and concluded that a powerful Horcrux had been taken by a student. They suspected the soul fragment was interested in Harry, so Dumbledore asked Snape to keep watch over him to identify its host.

• Dumbledore and Snape searched the Room of Requirement but found no sign of the hidden Dark Arts item.
• Dumbledore and Snape concluded that a student had taken Voldemort's Horcrux, though they had no way to identify the student.
• Snape asked what the Horcrux wanted, and Dumbledore explained that its soul fragment could rebuild a body and replace Voldemort's weakened main soul.
• Dumbledore suspected the Horcrux was staying at Hogwarts to observe Harry, whose survival as a baby had defeated Voldemort.
• Dumbledore told Snape that Lily's magic protected Harry and asked him to watch Harry closely so they could find the Horcrux's host.

Andy suspected that a Dark Arts Item left behind by Voldemort was behind the attacks, then investigated the Eighth Floor with Hermione. They found the Room of Requirement, but Andy realized they might have been searching for the wrong kind of room.

• Andy questioned Malfoy about his cheap-looking protective charm, and Malfoy warned him to stay away.
• Andy told Hermione he suspected a Dark Arts Item was controlling a student and causing the attacks, and he suggested Voldemort might have hidden it in the Room of Requirement.
• After History of Magic, Andy and Hermione searched the Eighth Floor and reasoned that someone following Andy might look for a hidden room where a person could hide.
• Andy and Hermione entered the Room of Requirement, but Andy concluded that a room for hiding people was different from the room Voldemort would have wanted for hiding an object.

Andy and Hermione reasoned that Voldemort had used the Room of Requirement to hide a Horcrux, but found no useful clues among the stored junk. As the first Quidditch match began, Andy watched Slytherin dominate Gryffindor and explained why broom inequality persisted.

• Hermione suggested Voldemort discovered the Room of Requirement because he needed somewhere to hide things, and Andy concluded that this explained how he found the Horcrux.
• Andy and Hermione searched a room filled with discarded objects but left without investigating further, reasoning that any Dark Arts Item involved in Justin's attack would already have been taken away.
• Filch continued to face ostracism despite the professors' assurances that he was not responsible for Justin's attack.
• Andy watched Slytherin defeat Gryffindor with the Nimbus 2001s, while Hermione questioned why Quidditch matches did not require equal brooms.
• Andy explained that broom restrictions would undermine the market for new products and told Hermione she could become Minister of Magic if she wanted to change the world.

Andy realized Voldemort’s Horcrux might target Harry or use the Basilisk to force Hogwarts to close, giving it a chance to leave the castle. After Harry won the Quidditch match, Andy hurried away to consider how soon the Horcrux might act.

• Hermione accepted Andy’s explanation about the Flying Broom Company and why Gringotts was controlled by goblins.
• Harry beat Malfoy to the Golden Snitch and won the match.
• Andy worried that Voldemort’s Horcrux might try to capture Harry, while Dumbledore remained calmly prepared for Voldemort’s return.
• Andy told Hermione he had something to think about and hurried off to watch Harry and the celebrating Gryffindors.
• Andy suspected Voldemort might use the Basilisk in the Chamber of Secrets to cause enough casualties to force Hogwarts to close.

Andy weighed the danger posed by the Horcrux and concluded that its trapped soul might become more extreme if it could not resurrect. He asked Hermione to help assess the threat, then decided they should tell Dumbledore everything and seek his help.

• Andy decided to watch for another attack to better judge the Horcrux’s intentions and mental state.
• Andy told Hermione that he had visited the Chamber of Secrets in case the Horcrux sought the Basilisk as a helper.
• Hermione reasoned that a trapped Voldemort might become increasingly extreme and attack Hogwarts if he saw no way to resurrect.
• Andy realized he needed an expert’s help and invited Hermione to discuss the situation with Dumbledore in the Headmaster’s Office.

Andy and Hermione told Dumbledore that Voldemort’s Dark Arts item was behind the attacks and revealed that Andy had found the Chamber of Secrets. Dumbledore agreed that they could not investigate openly without provoking Voldemort, leaving the danger unresolved and their search constrained to secrecy.

• Andy and Hermione visited Dumbledore, shared refreshments, and Hermione explained their analysis of the attacks.
• Dumbledore praised Hermione and Andy, then said the ghosts had found nothing and wondered if they had misjudged the culprit.
• Andy insisted Voldemort’s Dark Arts item was responsible and revealed that he had found the Chamber of Secrets.
• Hermione explained where the entrance was, and Andy described how his grandfather’s memories and Madam Bathat’s accounts had helped him.
• Dumbledore agreed their suspicions were correct but warned that they had to avoid openly pressuring Voldemort, so they would have to investigate secretly.

Andy told Dumbledore that he wanted a peaceful place to study and would only get involved to protect Hermione and keep Hogwarts open, while Dumbledore tried to draw him into the fight against Voldemort. They discussed Horcruxes and the soul, and Dumbledore left Andy pondering what ghosts lacked that prevented them from casting spells.

• Andy silenced Hermione and asked Dumbledore whether he knew how to open the Chamber of Secrets.
• Andy revealed that he could speak a little Parseltongue, connected the Room of Requirement to the Headmaster's Office, and identified Harry as a Horcrux.
• Andy told Dumbledore he wanted to study in peace and cared chiefly about Hermione's safety and preventing Hogwarts from closing, while refusing responsibility for Harry's affairs.
• Dumbledore invited Andy to join the fight against Voldemort, and Andy joked about asking for Beauxbatons Academy of Magic's admission requirements.
• Dumbledore explained that Voldemort's soul and its fragments had been corrupted by Dark Arts, then asked Andy what ghosts lacked that kept them from casting spells.

Andy and Dumbledore discussed what ghosts lacked and whether the body or soul used magic, but Dumbledore refused to give him a direct answer. After leaving Dumbledore’s office with Hermione, Andy continued pondering the question in the Room of Requirement and wondered whether ghosts lacked the Seven Corporeal Souls.

• Andy considered why ghosts could not use magic despite possessing magic power and Mind Power, and Dumbledore suggested that the body might be what used magic.
• Andy and Dumbledore discussed Dumbledore’s plan to train Harry and Andy’s demand to become a pure wizard; Andy accepted that Dumbledore would proceed with the plan.
• Andy lifted the Silencing Charm from Hermione, then told her that Dumbledore had a plan and that they could return to their normal routines.
• Andy and Hermione went to the Room of Requirement, where Andy practiced spells, helped Hermione, and continued thinking about ghosts.
• Andy asked Hermione about the Imperius Curse and wondered whether the soul or the body used magic.

Andy and Hermione discussed how the body, soul, and magical power contributed to casting spells, while Andy secretly watched Harry and the others search for the culprit behind Justin's attack. After spending four Potential Points on his Thought talent, Andy’s thinking, memory, and Transfiguration improved enough that he decided he could begin studying Animagus transformation.

• Hermione suggested that the soul issued commands while the body carried out spells, and Andy concluded that magical power came from life rather than the soul.
• Over the next three days, Andy watched Harry while George and Fred tried to find the culprit and clear Filch’s name; Harry and Ron focused on Snape and Malfoy.
• Andy used all four of his Potential Points to raise his Thought attribute to 4.
• Andy felt his thinking and memory sharpen, then transformed a humanoid target into a white rabbit with improved Transfiguration.
• Andy decided he was ready to begin learning how to become an Animagus.

After improving his Mind attribute, Andy found Transfiguration easier and asked Professor McGonagall to teach him Animagus Transformation. McGonagall explained the lengthy preparation and began answering his questions about the magic’s risks and principles.

• Andy tested his improved Transfiguration and decided he was ready to learn Animagus Transformation.
• Andy visited Professor McGonagall and explained what he knew about Animagi, convincing her he had researched the subject seriously.
• McGonagall warned Andy that Animagus Transformation was dangerous and described the Mandrake leaf, potion, and thunderstorm requirements.
• Andy asked why the transformation required a thunderstorm and potion, and how African schools taught transformations into multiple animals.
• McGonagall explained that Animagus Transformation was a permanent form of Human Transfiguration that borrowed forces from nature.