Chapter Summaries

Andy completed Riddle's Dark Arts Transformation Ritual and waited for the New Moon, while Fudge's resignation made Amelia Bones the new Minister of Magic. Andy and Hermione bet on whether anything would happen at Hogwarts on Halloween, and the feast ended without an attack, leaving Hermione the winner.

• Andy and Hermione left Dumbledore's office after he warned them to keep a secret without asking about Malfoy.
• Fudge resigned as Minister of Magic, Amelia Bones took over, and Susan Bones became the focus of Slytherin students seeking influence.
• On October 28, Andy controlled Riddle through the final Dark Arts Transformation Ritual and prepared to wait for the New Moon before brewing the potion.
• Andy gave up trying to speak with Snape, who had grown irritable and continued targeting Harry in class.
• Andy and Hermione bet that something would or would not happen at Hogwarts on Halloween, with the winner allowed to name a condition.
• The Halloween feast ended without an attack, so Hermione appeared to win the bet while Andy remained cheerful.

After the feast, Andy and Hermione talked in the Astronomy Tower about dimensional ascension and the life they wanted, but a disturbance interrupted them when the castle was alerted to an intruder. The intruder was identified as Peter Pettigrew, leaving Andy to wonder whether Snape had been exposed.

• Andy sealed the Astronomy Tower with protective spells so he and Hermione could stargaze in private.
• Hermione asked Andy whether he would pursue his dream of transcending dimensions, and he said he might give it up in favor of his familiar world and a long, free life like Nicolas Flamel's.
• After a commotion broke out, Andy and Hermione hurried to the Eighth Floor, where Dumbledore and Professor McGonagall gathered students and learned that someone had broken into Hogwarts.
• Andy and Hermione spotted Harry and Ron among the crowd and suspected the incident was connected to Harry.
• Dumbledore ordered Professor McGonagall to take the students to the Great Hall while he and the professors searched the castle for Peter Pettigrew.
• Hermione wondered whether Pettigrew's arrival meant something had happened to Snape, and Andy silently considered whether Snape had been exposed.

After Peter Pettigrew infiltrated Hogwarts and escaped from Harry and Ron’s dormitory, the students gathered in the Great Hall while the professors searched the castle. Andy learned that Snape knew nothing about Peter’s mission and heard Harry’s account, but Peter’s reason for waiting in the dormitory remained unclear.

• Andy followed Professor McGonagall to the Great Hall and confirmed through a look that Snape knew nothing about Peter Pettigrew’s infiltration.
• Professor McGonagall told Professor Sprout that Peter had entered the Gryffindor boys’ dormitory and escaped as a rat, then sent Snape and Sprout to help Dumbledore search Hogwarts.
• Professor McGonagall conjured tents in the Great Hall and arranged for the students to spend the night there.
• Harry and Ron told Andy and Hermione that Ron had spotted Peter trying to open their dormitory door, and Peter had revealed himself before escaping through the window.
• Harry said Peter had subdued him and sent a mocking message from Voldemort before leaving.
• Andy realized Peter had stayed in the dormitory for over an hour after Harry and the others fell asleep, though his purpose was still unclear.

Andy used divination to search for Peter Pettigrew after the group realized Peter had secretly inspected Harry. The vision revealed Peter entering a dusty, long-abandoned house and transforming from a rat into a man.

• Andy and Hermione considered why Peter had approached Harry, while Harry and Ron wondered whether Voldemort meant to kill him.
• Hermione suggested Andy use his Sight to divine Peter's location, and Andy agreed that he needed a Crystal Ball.
• Professor McGonagall allowed the four students to return to the dormitory for the divination, provided they stayed together and reported the result to Dumbledore.
• Andy retrieved a Crystal Ball and chose Harry as the medium because Peter had come for him.
• Andy completed the divination, and the Crystal Ball showed Peter entering a dilapidated, dusty house and transforming from a rat into a man.

Andy’s divination showed Peter Pettigrew escaping and later capturing Harry in a wilderness, tied to a cross beside a cauldron. Andy believed the vision marked a Time Node that would come to pass, though Harry might still be rescued.

• Peter Pettigrew appeared in Andy’s crystal ball vision, then Apparated away before Andy could identify his location.
• Andy explained that he could not divine Peter’s destination, and Hermione described how Voldemort’s great Weight of Destiny made related events hard to predict.
• Hermione suggested divining Harry’s future, so Andy guided Harry through another crystal ball vision.
• The vision showed Harry tied to a cross while Peter Pettigrew stood beside a cauldron holding an indistinct baby-like object.
• Andy said the vision would occur the next time Harry met Peter, possibly a year or two later, and concluded that Harry’s capture was a Time Node, though rescue remained possible.

Andy told Professor McGonagall that Peter Pettigrew had escaped through Apparition from a dilapidated house, and Dumbledore realized the house was the Shrieking Shack. Andy and Hermione discussed using a Time-Turner to pursue Peter, but Andy refused, leaving Dumbledore and Snape to continue dealing with the escape.

• Andy told Professor McGonagall that Peter had transformed into a rat, reached a dilapidated house, and escaped by Apparition.
• Andy and Hermione settled into neighboring tents and discussed whether a Time-Turner could help them pursue Peter without changing established history.
• Andy rejected Hermione's plan, and Hermione sent him out of her tent after he joked about staying there to sleep.
• Dumbledore recognized the dilapidated house as the Shrieking Shack and told McGonagall the castle was safe.
• Dumbledore sent McGonagall to rest while Snape remained on duty.

Dumbledore suspected Voldemort had learned Harry’s secret through the Diadem and ordered Snape to contact him. The next morning, Andy woke to Hermione teasing him about a bet on who would be last out of bed.

• Dumbledore connected Peter Pettigrew’s attempt to reach Harry with the possibility that Peter had learned about Horcruxes during the Diadem incident.
• Dumbledore recalled that the Diadem had passed through Percy Weasley’s hands and suspected its soul fragment had used Ron to approach Harry and investigate him.
• Dumbledore reasoned that Voldemort wanted the power protecting Harry and wondered whether Harry could use that power to affect Voldemort.
• Snape left to contact Voldemort, while Dumbledore continued examining the damaged diary, Diadem, and Gold Ring.
• Hermione told Andy that George and Fred had started a bet on who would be the last to get up, and Andy climbed out of his tent.

Andy returned to Hogwarts after Halloween and Snape questioned him about Voldemort’s intentions. Andy avoided revealing Harry’s connection to Voldemort and described a vision of Harry bound to a cross with Peter Pettigrew holding a baby-like object.

• Andy walked back to the dormitory with Hermione, joked about her caring for him, and later changed clothes before reading in the Common Room.
• Snape summoned Andy to his office and asked what he thought Voldemort wanted.
• Andy said Dumbledore had warned him to keep certain secrets, leaving Snape to suspect he was the only one being kept in the dark.
• Andy told Snape that a divination showed Peter had escaped and another vision showed Harry tied to a cross about a year later, with Peter holding something that looked like a baby.

Snape struggled with the possibility that Harry carried a piece of Voldemort’s soul, while Andy suggested using Dementors to remove it. The idea rekindled Snape’s hope, and he began studying a book about death and the afterlife.

• Snape realized Voldemort had kept Harry’s secret from him and suspected that Harry was a Horcrux, leaving him torn between protecting Harry and defeating Voldemort.
• Andy left out part of Dumbledore’s warning when discussing Malfoy’s affairs, then suggested that Dementors might be able to extract Voldemort’s remnant soul from Harry.
• Snape saw promise in Andy’s suggestion, and Andy left him to investigate the method.
• Hermione asked Andy what Snape had wanted, and Andy said Snape might contact Voldemort for information.
• Snape took out The Truth of Death and Hell and began reading it again, hopeful that Dementors could help save Harry.

Andy brought Hermione to watch Gryffindor play Slytherin in a storm and transformed logs into a comfortable pavilion, prompting the students to make shelters of their own. The match had not yet begun when Gryffindor arrived on seven rare Firebolts, with Sirius cheering them on and taunting Snape.

• Andy brought Hermione snacks and logs to the Quidditch pitch, then transformed the logs into a pavilion with chairs, a table, and a heater.
• The Little Wizards copied Andy by making rain shelters, but many of their Transfigurations collapsed, embarrassing them and frustrating Professor McGonagall.
• Andy exchanged gestures with Sirius, who agreed to duel him after the match.
• The crowd reacted with astonishment when Gryffindor entered carrying seven Firebolts, while Slytherin's team had Nimbus 2001 brooms.
• Sirius cheered for Gryffindor and taunted Snape about the Black Family's wealth.

After Gryffindor's Quidditch victory, Sirius told Harry that Peter had found Voldemort and discussed Hogwarts's secret passages with Dumbledore. At Hagrid's Hut, Andy avoided eating Hagrid's Rock Cakes with a clever excuse, but Hermione tried one herself.

• Gryffindor defeated Slytherin by nearly three hundred points, and Andy went to the library with Hermione while Sirius celebrated with the Gryffindor players.
• Sirius told Harry that Peter had gone to Albania and returned to Britain, where he had found Voldemort.
• Sirius told Dumbledore that Peter could use old secret passages while disguised as a rat, and Dumbledore agreed to seal them temporarily.
• At Hagrid's Hut, Andy claimed Madam Pomfrey had advised him to eat liquid foods, while Ron tried to warn him about the Rock Cakes.
• Andy used Langlock to stop Ron from speaking, and Hermione took a bite of a Rock Cake.

Andy, Hermione, Harry, and Hagrid shared Rock Cakes before Sirius arrived and discussed the search for Peter Pettigrew. Sirius explained that Peter had mysterious allies, while Harry suspected Snape and Lucius; Hermione then began suspecting Andy because he owned a Time-Turner.

• Hermione struggled to bite Hagrid’s Rock Cake, then slipped it into Andy’s pocket when he offered one.
• Sirius arrived at Hagrid’s home, greeted everyone, and reminisced with Hagrid about the years since he had given Hagrid a motorcycle.
• Harry asked Sirius whether he had found Peter, and Sirius said Peter had escaped him in Albania and received help from a Black Robed Man and a Safe House.
• Harry accused Snape and Lucius of helping Peter, but Sirius said both had alibis and argued that four accomplices would not have needed Polyjuice Potion.
• Hermione suspected Andy might have helped Peter by using his Time-Turner, leaving Andy wishing he had not joined the gathering.

Hermione concluded that Andy, Snape, and Lucius were among the wolves, while Sirius’s account of a masked Death Eater left the culprit unclear. Sirius agreed to train Harry over Christmas and challenged Andy to their promised duel, but Andy effortlessly blocked Sirius’s opening spell.

• Hermione identified Andy, Snape, and Lucius as wolves, and considered Peter Pettigrew another suspect.
• Harry and Sirius suspected that a masked Death Eater had attacked Harry and was now targeting him.
• Sirius told Harry that Dumbledore had asked him to train Harry during Christmas Holiday.
• Sirius and Andy renewed their agreement to duel five hundred times and added a ten-lap punishment for whoever backed down.
• Sirius launched a surprise spell at Andy, who stopped it with an invisible magical barrier.

Andy tested the Fat Cat Patronus's combat ability by having it fight Sirius, revealing that it could defend with Protego and attack with spells before ramming him. Sirius was disarmed and impressed, while Andy explained that the Patronus was nearly invulnerable and would endure as long as he lived.

• Andy warned Sirius that escaping was wiser than confronting an overwhelmingly powerful opponent, then summoned the Fat Cat Patronus with an apparently wandless gesture.
• Sirius recognized the Patronus and attacked it with a rapid barrage of spells as Andy watched and tested its abilities.
• The Fat Cat Patronus blocked Sirius's attacks, used Expelliarmus to counter his Protego, and rammed him, sending him flying and knocking away his wand.
• Andy picked up Sirius's wand and explained that the Patronus's body resisted most magic and that it would remain as long as Andy lived.

Andy assessed the Fat Cat Patronus’s strength and explained how it became a Magical Lifeform by combining his mind with magic. Sirius discussed the Black family’s research into Obscuruses, and Andy asked why they lost control.

• Andy judged that he could not challenge Dumbledore, but that the Fat Cat Patronus made him powerful enough to face several opponents at once.
• Sirius praised the Patronus’s magic, while Harry accepted Sirius’s challenge to one day defeat Andy.
• Ron asked why he could not form a Patronus, and Andy explained how magic and mind combined to create his Patronus’s body and soul.
• Sirius described how the Black family and other researchers had tried to create Obscuruses by tormenting children into suppressing their magic.
• Andy asked Sirius why Obscuruses lost control.

Andy discussed how an Obscurus formed with Sirius and considered whether magical transformation could keep one safely inside its host. He returned to Hogwarts intending to research the subject further, while Harry decided to join him in studying magic.

• Sirius explained that unstable magic and negative emotions could create an Obscurus, which left its host when the host's growing body became unsuitable for it.
• Andy reasoned that suppressed magical Mind Power, rather than negative emotions specifically, might be the key to creating an Obscurus.
• Hermione worried that Andy would study the dangerous Obscurus, and Andy reassured her that he was not seeking to become an Obscurial.
• Andy wondered whether a magically transformed body could contain an Obscurus, recalling that members of the Dumbledore Family had survived past the age of ten.
• Andy said he would return to the library, and Harry chose to go with him to study magic.

Andy prepared to brew the Dark Arts Transformation Potion on the New Moon, hoping to complete his Magical Transformation and discover whether a transformed body could contain an Obscurus. He retrieved the potion and renewed his control over Riddle, leaving the experiment about to begin.

• Andy reviewed his theory that Magical Transformation could make his body a suitable home for an Obscurus.
• Andy planned to seek Gellert Grindelwald’s advice after Christmas by sending him a Two-Way Mirror through Kreacher.
• Andy used the Time-Turner to travel back to seven in the evening and Apparated to the Godric’s Hollow graveyard.
• Andy dug up the crystal vial, saw that its scarlet potion had brewed successfully, and returned to his laboratory.
• Andy checked that Riddle remained under the Imperius Curse, cast the curse again, and took out the vial.

Andy finished brewing a scarlet potion and used his theories about Magical Transformation and Obscuruses to plan an experiment on Riddle. He left Riddle locked in the basement and set December 14 as the date to test his ideas, hoping to complete his own transformation by April.

• Andy followed Slytherin's notes to brew a scarlet potion, using magic to control Riddle during the process.
• Andy theorized that a magically transformed body could host an Obscurus, and that Voldemort's body might be exceptionally compatible with one.
• Andy considered whether his Fat Cat Patronus could coexist with an Obscurus, reasoning that they represented opposing sides of his nature.
• Andy returned Riddle to the iron cage with food and water, then checked the potion and left the basement.
• Andy planned to test his theory when Riddle underwent Magical Transformation on December 14, then begin his own transformation if the experiment succeeded.

Andy raised his Will talent to level six while Snape reported that his research into communicating with Dementors and protecting Harry's soul looked feasible. The chapter ended with Andy and Snape dividing the work needed to protect Harry from Voldemort's soul fragment.

• Andy gained six Potential Points and raised his Will talent to level six.
• Malfoy secretly pledged loyalty to Andy and offered to spy on Death Eater admirers in Slytherin.
• Snape showed Andy his research notes and a book about death, souls, and the World of the Dead.
• Snape explained that Dementors could be communicated with, but Harry's soul needed protection before they acted.
• Andy agreed to research magical protection for Harry's soul while Snape worked on communicating with Dementors.

Andy discussed Harry’s safety and Voldemort’s Horcruxes with Snape, then began reading The Truth of Death and Hell. The book’s detailed ideas about souls and the afterlife caught Andy’s attention.

• Snape agreed to borrow Andy books about souls, Obscuruses, and Magical Transformation, while warning him not to raid Malfoy Manor’s library.
• Andy reminded Snape that Harry’s soul fragment could not be removed until they had found the other Horcruxes, since Harry’s connection to Voldemort was their only way to locate them.
• Andy left Snape and joined Hermione at the Ravenclaw table, where he read The Truth of Death and Hell.
• Andy read the book’s account of souls, death, the Deathly Hallows, and Hell, then became excited when he reached a new chapter.