Chapter Summaries

William continued combat training with Professor Flitwick until a damaged beam nearly brought the classroom down, and Dumbledore intervened before revealing that a Ravenclaw student had died. Dumbledore recognized William’s ring and arranged for his Transfiguration lesson to continue, while William left after hearing Dumbledore invoke “the greater good.”

• William attacked Professor Flitwick with shattered glass, but Flitwick’s instinctive counterspell injured him.
• William resumed the fight, and Flitwick kept defending until a spell damaged a load-bearing beam and William retreated.
• Dumbledore stopped the incoming magic arrows, repaired the classroom, and told Professor Flitwick that a Ravenclaw student had died.
• Professor Flitwick hurried to Ravenclaw House to maintain order and asked William to come with him, but William and Dumbledore said they needed to speak.
• William showed Dumbledore his bronze ring, and Dumbledore understood what it meant before asking what William planned to do next.
• Dumbledore agreed to speak to Professor McGonagall about William’s Transfiguration lesson, then called after William, “Every time. For the greater good!”

William used the time loop to receive private Transfiguration lessons from Professor McGonagall and showed her how much he had improved. After leaving her office, he wandered toward Snape’s potion storeroom, drawn to the place despite having never entered it.

• William reflected on how the time loop let him study Transfiguration privately with Professor McGonagall each afternoon.
• Professor McGonagall initially urged William to review first-year material instead of attempting a later section.
• William transformed a bamboo rat into an ornate snuff bottle, convincing Professor McGonagall to teach him the advanced material.
• William practiced repeatedly as Professor McGonagall corrected his mistakes, while she mistook his loop-driven progress for extraordinary talent.
• William left the office and walked through the empty corridors toward Snape’s potion storeroom.

William explored Snape’s storeroom and discovered a hidden room containing a photograph of Snape and Lily as children, along with hundreds of unsent letters to her. He left the letters unread and continued down a dark corridor.

• William entered Snape’s storeroom after finding its defenses broken and found keys and a note asking Dumbledore to keep them.
• William used the keys to open a seven-locked trunk and descended into the hidden room beneath it.
• William found a photograph of young Snape and Lily, along with a letter dated that day describing Snape’s despair.
• William discovered a drawer full of unsent letters addressed to Lily, then left the room and walked down the corridor.

William explored Professor Snape’s magically enlarged storeroom and discovered an enormous collection of rare magical creature specimens and difficult Potions. He left eager to use the ingredients to practice brewing and begin his path toward becoming a Potions Master.

• William wandered through Snape’s storeroom and marveled at its thousands of preserved magical creature specimens.
• William found a coelacanth and the corpse of a colossal squid, imagining how their valuable parts could improve Potions.
• William saw crates of African Tree Snakes, Unicorn Hair, and other costly ingredients, and suspected Hogwarts had helped Snape acquire them.
• William discovered cauldrons of Potions, including Felix Felicis and Veritaserum, among several unfinished brews.
• William decided to spend his evenings brewing Potions and use the storeroom’s ingredients to practice without worrying about the cost.

William finished another exhausting duel with Professor Flitwick and reflected on the limits imposed by his age and magic supply. After a year of intense study, he decided to use the Quidditch match as a chance to learn the game by playing as a Chaser.

• Professor Flitwick told William that his fighting skill was exceptional but that his youth, limited magic, and lack of powerful spells held him back.
• William recovered with stolen potions and soda, then left after another year of training in fighting, Transfiguration, and potion-making.
• William heard Dumbledore announce a Quidditch match and realized he had spent a year neglecting the sport.
• William decided to sneak into the match as a Chaser so he could learn Quidditch and later lead Ravenclaw to the Cup.

William sought Dumbledore’s help to get onto the Quidditch field and disguise himself as Warrington so he could catch a time-traveling dark wizard targeting Dumbledore. After persuading Cedric to help, William drank Polyjuice Potion and began transforming into Warrington.

• William went to Dumbledore and obtained a bottle of Bartle Soothing Potion, which he gave to the nervous Cedric.
• William told Cedric he had traveled back from 2020 to stop a dark wizard from attacking Dumbledore, and convinced him by demonstrating extraordinary Transfiguration and predicting Cedric would end up with Cho.
• Cedric lured Warrington to a secluded classroom, where William stunned him with Stupefy.
• William took a lock of Warrington’s hair, added it to the Polyjuice Potion, and drank the potion.

William tried Quidditch while disguised as Warrington, suffered a disastrous first match, and spent nearly two years in the time loop improving his skills and studying. Growing tired of the repeating days and limited life at Hogwarts, he decided to leave the loop.

• William drank Polyjuice Potion, transformed into Warrington, and joined the Quidditch match.
• George hit William with a Bludger, knocking him from the sky during his first match.
• William repeatedly played Quidditch in the loop, improving until he could score and pass with ease.
• William grew tired of Quidditch and turned to studying Ancient Runes, but soon felt burned out by the repetition.
• After spending nearly two years in the loop, William decided to leave it.

William followed Tywin through the Hogwarts corridors and discovered how he had appeared in several places at once. After understanding the mystery, William prepared to reveal the truth to Dumbledore.

• William used a Strengthening Solution and the Disillusionment Charm to follow Tywin from the Defense Against the Dark Arts Office.
• The Marauder's Map showed four Tywins, and William watched the original Tywin fight a wounded Snape impersonator who was actually Tywin under Polyjuice Potion.
• William followed Tywin toward the Room of Requirement and watched another Tywin ambush him near the corridor to Ravenclaw Tower.
• The injured Tywin used a Time-Turner, and the other Tywins vanished from the Marauder's Map as William realized Professor Tywin was dead.
• William concluded that he understood the affair and prepared to tell Dumbledore that there was only one truth.

Dumbledore and William watched Tywin kill Robert and use the sacrifice to feed the Ravenclaw door knocker with energy from Time-Turners. William then explained how Tywin’s repeated time travel caused the attacks and encounters, ending with the realization that Tywin had unknowingly attacked his own earlier self.

• Tywin stunned Robert, used a blood ritual and two Time-Turners to power the Ravenclaw door knocker, then gouged out Robert’s left eye and left it on the door for Dumbledore.
• Dumbledore told William that the memory confirmed his suspicions, and William identified the Time-Turner as the key to Tywin’s actions.
• William reasoned that Tywin first traveled back to divert Dumbledore from Ravenclaw Tower by warning him about Voldemort.
• William explained that Tywin later used a Time-Turner after being attacked, then returned to wait in the Ravenclaw corridor, where he fought his own earlier self.

William explained how Tywin’s repeated Time-Turner trips caused him to injure himself, kill Robert, and fail to steal the Ravenclaw Ring. Dumbledore explained the dangers and limits of time travel, and William realized Dumbledore’s unexpected visit to Ravenclaw had triggered the chain of events.

• William reconstructed how Tywin attacked his own earlier selves, killed Robert, and took the door knocker from the Ravenclaw Common Room.
• William explained that Tywin disguised himself as Snape to enter the storeroom, but Snape fought him and drove him away.
• William described Tywin’s later attempt to stop himself from seeking the ring, which led to another fight and left him trapped in a time loop.
• Dumbledore praised William’s deduction, then explained that Time-Turners could only safely send someone back a few hours and that longer journeys had caused catastrophic damage.
• William concluded that Tywin had sought the Ravenclaw Ring because its rumored time travel had no side effects, and realized Dumbledore’s unannounced visit had started the chain of events.

Dumbledore showed William memories revealing that Tywin became a genuine Death Eater after his feelings for James turned to hatred and he tried to help Voldemort find Lily. He explained that Tywin stayed hidden after Voldemort fell and hated Snape because he blamed him for Voldemort’s death.

• Dumbledore showed William a memory of Tywin offering Voldemort information about Lily Potter and the Longbottoms in exchange for becoming a Death Eater.
• William watched Tywin swear loyalty to Voldemort, receive the Dark Mark, and join the Death Eaters.
• Dumbledore explained that the Death Eaters began as Voldemort’s followers at Hogwarts and said Rodolphus Lestrange’s memory confirmed the ritual.
• Dumbledore said Tywin revealed Lily’s whereabouts out of hatred after James and Lily married, but Lily escaped and Dumbledore sent the Potters and Longbottoms into hiding.
• Dumbledore explained that Sirius led Voldemort to the Potters before Tywin could act, and that Tywin later blamed Snape for revealing information that led to Voldemort’s death.

William pieced together how Tywin had framed Snape, stolen the knocker, and used Judy Crouch before the Ravenclaw Ring ended his time loop. Back in the present, William showed off his improved Transfiguration and set out to take Tywin to task.

• William questioned Dumbledore about Tywin's attacks and learned how Tywin stole Snape's hair and potions, framed Snape and Malfoy, and tricked Judy Crouch into returning the knocker.
• Dumbledore showed William Judy's memory, confirming that Tywin had manipulated her affection for him.
• The Ravenclaw Ring sent William back to his bed on April twentieth, ending his loop.
• William transformed a battered hat into an eagle and then a decorated hat in front of the Ravenclaw common room, impressing Cho and the other students.
• William told Cho he was going to see Professor Tywin with a one-way ticket to Azkaban.

William confronted Tywin alone in the Defense Against the Dark Arts Office after Tywin tried to draw him toward Dark Magic. Their battle damaged the office and set the corridor ablaze, ending with William knocking Tywin unconscious.

• William found the ring in his palm after leaving the common room and pocketed it, while Robert searched for the vanished eagle-shaped knocker.
• William entered Tywin’s office under the pretense of asking about the Summoning Charm, then attacked Tywin with Stupefy.
• Tywin avoided the spell with help from his Sneakoscope and Secrecy Sensor, but a falling bookshelf injured his back, and his Flame Explosion set the corridor alight.
• McGonagall ordered the students to stay put, took Wood’s broom, and flew toward the castle to investigate the explosion.
• William and Tywin traded spells in the office as flames and frost filled the room, while William turned books into spears and fire into attacking birds.
• William’s attack drove Tywin into a wall, where he fell unconscious with blood showing beneath his hair.

William defeated Tywin, a Death Eater, and found the Three Books of Occult Philosophy hidden in a bathroom cistern. Professor McGonagall and other staff arrived, and Dumbledore took William to hear his account as Snape appeared with his arm in pain.

• William bound Tywin, took his wand, and searched for the Three Books of Occult Philosophy.
• William found Tywin's hidden trunk in the bathroom cistern and copied the Three Books, leaving the Gringotts key and Time-Turners behind.
• Professor McGonagall crashed her broom through a wall, transformed into a cat to land, and confronted William.
• William revealed Tywin's Dark Mark to McGonagall, and Professor Flitwick arrived to see it.
• Dumbledore invited William to explain what had happened, and William greeted Snape, who was clutching his left arm.

William explained how he captured Tywin to Dumbledore and learned that Fudge wanted to keep the Time-Turner secret, then reunited with his friends by the Black Lake. He revealed how the Marauder’s Map worked and identified the spell behind it as the Tracking Charm.

• William gave Dumbledore his account of Tywin and showed him memories as evidence.
• Fudge praised William and offered to seek an Order of Merlin, then Dumbledore asked him to keep the Time-Turner secret from his friends.
• William told Fred, George, Cedric, and Cho about the time loop and let them test Ravenclaw’s Ring, but it did not respond to any of them.
• Fred, George, Cedric, and Cho joked about searching for their houses’ legendary artifacts while William conjured chairs by the Black Lake.
• William explained that the Marauders had used the Tracking Charm on Hogwarts to make wizards’ names appear on the Marauder’s Map.

William planned a map-selling business with his friends as news spread that he had captured Tywin, who was sentenced to life in Azkaban. William then earned full marks in several practical exams, and the students finished their exams for the term.

• William explained how he would link the maps for sale to the Marauder’s Map, while Cedric agreed to redesign them and the others prepared to promote their shop.
• The Ministry portrayed Tywin as a Death Eater, and the Daily Prophet praised William for capturing him and predicted he would receive an Order of Merlin.
• Lyanna threatened to withdraw William from Hogwarts, and Dumbledore visited William’s home while dealing with Tywin’s trial.
• Tywin was convicted and sentenced to life in Azkaban, and Defence Against the Dark Arts classes were suspended.
• William earned full marks in practical exams for Charms and Transfiguration, and Snape let his Potions-exam addition pass without comment.
• The students completed their History of Magic exam and cheered as the term’s exams ended.

After exams, William, Cedric, and Cho visited Hagrid, who told them Dumbledore had let him keep Fluffy but was borrowing the dog for an undisclosed purpose. At the End-of-Year Feast, Ravenclaw won the House Cup and William received a Special Award for Services to the School before Peeves disrupted the feast and William’s first year ended.

• William, Cedric, and Cho visited Hagrid, who served them a misspelled chocolate cake while Fang and Bobocha tried to avoid it.
• Hagrid said Dumbledore had agreed to let him keep Fluffy, but the dog had to stay in the castle because Dumbledore wanted to borrow him.
• Hagrid told William, Cedric, and Cho that Professor Quirrell would teach Defense Against the Dark Arts next school year, but he refused to explain Dumbledore’s plans for Fluffy.
• At the End-of-Year Feast, Dumbledore announced that Ravenclaw had won the House Cup and awarded William a Special Award for Services to the School and one hundred house points.
• Peeves released two Dungbombs at the Slytherin table, scattering the students as William’s first year came to an end.

William finished the school year with perfect marks and said goodbye to his friends at King's Cross. A toad delivered him a letter from Devon, and William recognized the sender, leaving him with a new summer activity.

• William came first in his year with perfect marks, while Cedric topped the second year and the twins were punished for the Dungbomb prank.
• William, Cedric, Cho, and the twins discussed their summer plans, including Cedric caring for Hagrid's creatures and helping Mr. Ollivander make wands.
• Mrs. Weasley scolded Fred and George at King's Cross, while William reunited with Lyanna, Anne, Roy, and Bobocha.
• A toad delivered a golden letter to William, and he recognized its sender from the markings and the Devon address.

Nicolas Flamel experimented on a universal elixir before hosting Albus Dumbledore, who asked to borrow the Philosopher's Stone to protect against Tom. Nicolas gave him the nearly powerless Stone and urged him to stop sacrificing himself.

• Nicolas Flamel's 100,083rd experiment on the universal elixir failed, and he ordered Hercules to record the data and destroy the unfinished potion.
• Nicolas Flamel learned from a Prophecy Orb that Dumbledore would arrive, then left his laboratory to meet him.
• Dumbledore told Nicolas Flamel that he had met the new Defense Against the Dark Arts Professor, who seemed to have been in Albania, and noted that Harry would start school that year.
• Dumbledore asked Nicolas Flamel to lend him the Philosopher's Stone because Tom did not know it was almost out of magic.
• Nicolas Flamel gave Dumbledore the Stone and reminded him that the world could do without either of them, while Dumbledore offered to help make another Stone.

Roy brought home drinks and snacks for a dinner with his old university friend Iris Granger and his family, while William met Iris’s daughter Hermione for the first time. William recognized Hermione’s name from the Wizarding World but was unsure whether she was the Hermione he knew, and the chapter left Anne and Hermione glaring at each other.

• Roy returned home with drinks from Diagon Alley and asked William to help carry them inside.
• Roy explained that he planned to use William’s quick-sobering potion after dinner so he could drive safely.
• Roy, Lyanna, William, Anne, and Bobocha prepared to welcome Iris and his family.
• Iris arrived with his wife and daughter Hermione, whom William recognized by name from the Golden Trio.
• Anne secretly tugged at William’s clothes while Hermione huffed at her.