Chapter Summaries

Will used a Confundus Charm to make Umbridge reveal that Fudge had sent her to undermine Dumbledore and target Lupin, then erased her memories and planted a false agreement. He left her office and encountered Dumbledore, who asked whether Will remembered their discussion about self-restraint.

• Umbridge offered Will a place in Fudge's circle in exchange for information on Lupin, but Will insulted her and cast a Confundus Charm.
• Umbridge revealed that Fudge wanted her to weaken Dumbledore's authority and replace professors with Ministry wizards, and that she planned to frame Lupin by provoking him to attack a student.
• Will erased Umbridge's memories and made her believe they had agreed he would permanently resolve the Lupin matter within a month and a half in exchange for her recommendation to Fudge.
• Will left Umbridge's office and met Dumbledore in the corridor, where Dumbledore asked whether he remembered their conversation about self-restraint.

Will explained to Dumbledore that he wanted to experiment on werewolves to find a way to cure Remus Lupin permanently. Dumbledore tolerated trials on violent werewolves and arranged for Will to meet Gellert Grindelwald on Saturday.

• Dumbledore confronted Will about using the Imperius Curse and Obliviate on Umbridge, and Will cited her plans against Dumbledore and Lupin.
• Will told Dumbledore he believed he could permanently transform Lupin back into an ordinary wizard, but would need to conduct experiments.
• Will argued that curing werewolves could end their suffering and give them the choice to live as humans again.
• Dumbledore agreed to turn a blind eye to necessary trials on Fenrir Greyback's former followers or other violent werewolves, while warning Will not to let Dark Magic change his thinking.
• Dumbledore arranged for Will to meet Grindelwald on Saturday and cautioned him not to believe everything Grindelwald said.

Will discussed his werewolf-virus research with Snape, who agreed to investigate werewolves among the Death Eaters. Later, Grindelwald shared his knowledge of the Infinite Cage with Will and asked whether he was settling in as a prefect at Hogwarts.

• Snape reprimanded Harry and Ron for mishandling their potion and asked Will to meet him after class.
• Snape agreed to investigate werewolves among the Death Eaters and cautioned Will to have him examine any new potions before using them.
• Will joked with Snape before leaving his office with the Flying Charm.
• In Austria, Grindelwald taught Will about the Infinite Cage while Dumbledore watched.
• Grindelwald asked Will whether he was settling in as a prefect at Hogwarts.

Grindelwald urged Will to develop his leadership and harness the power of belief, while Dumbledore worried that he might follow a dangerous path. Grindelwald revealed a prophecy of a silver tide led by Will and Harry breaking through darkness, leaving Dumbledore uncertain about how much to guide Will.

• Grindelwald told Will that becoming a great wizard required learning to lead others and earn their trust and faith.
• Dumbledore objected to Grindelwald teaching Will about leadership, then sent Will away so they could speak alone.
• Grindelwald argued that Will should choose his own path and warned Dumbledore against trying to control it.
• Grindelwald described a vision of a silver tide breaking through darkness, led by a silver-gray-eyed figure alongside a green-eyed figure with lightning on his head.
• Dumbledore identified Will and Harry as the figures in the vision and worried that encouraging Will to lead might make him follow Grindelwald's path.

After returning from Nurmengard, Will considered Grindelwald’s advice and focused on his planned werewolf experiment. Snape told Will to cover two Potions classes and, as the High Tower attracted new members, Will agreed to expand it.

• Will returned to Hogwarts and considered how Grindelwald wanted him to harness people’s trust and faith, while deciding to focus first on studying magic and conducting his werewolf experiment.
• At dinner, Snape criticized Will for cutting his steak with Sectumsempra, warned him about the danger, and told him to cover two Potions classes next Tuesday.
• Draco reacted with surprise to the news that Will would teach classes before graduating, and Snape sent him off to study for his O.W.L.s.
• At the High Tower, Hermione reported that eleven people had been nominated to join, and Will said he would add two floors the next day and let members vote on the nominees.
• Will teased Draco for spreading the news, unaware that even more shocking news would arrive the next day.

Hermione learned that the Ministry had appointed Dolores Umbridge Hogwarts’s first High Inquisitor, then joined the High Tower members to see Will’s expanded headquarters. The group reached the new meeting room, where Will prepared to hold a vote on their nominees.

• Hermione read the Daily Prophet’s announcement of Educational Decree Number Twenty-Three and concluded that the Ministry was interfering with Hogwarts.
• Anco stopped Hermione from using the Vanishing Cabinet because Will was expanding the High Tower and had forbidden entry until he came out.
• Will emerged after more than two hours and showed the fourteen assembled members the High Tower’s new nine-floor layout and grand hall.
• Will led the group to the seventh-floor meeting room and explained that they would use it for discussions and votes, beginning with a vote on their nominees.

Will showed the High Tower members its connected floors, including their recreation areas, a vast training ground, and a new workshop for Fred and George. Back in the meeting room, Draco nominated Astoria Greengrass for membership, and Will recognized her as Draco’s future wife in the original timeline.

• Will led the group through the eighth floor and showed Anco the room he had prepared for him.
• Will showed the members the recreation areas on the fourth and fifth floors and the expansive training ground on the Third Floor.
• Will explained that he had created the training ground using an advanced Undetectable Extension Charm.
• Will showed Fred and George their enlarged workshop on the Second Floor, with separate areas for research, storage, and testing.
• After the group returned to the meeting room, Draco nominated Astoria Greengrass.

Will approved four new High Tower members before hearing Draco reveal that Lucius had asked him to nominate Astoria and report the Greengrass family's work for Voldemort. Draco also mentioned his father's books on healing magic, and Will suggested Draco's hawthorn Wand might suit both healing and Dark Magic.

• The High Tower approved Astoria Greengrass, Justin Finch-Fletchley, Terry Brown, and Cho Chang, while Colin Creevey's nomination was unanimously rejected.
• Draco asked to speak privately with Will, and Hermione agreed to wait for them.
• Draco told Will that Lucius had asked him to nominate Astoria, concealed the Malfoy-Greengrass alliance, and revealed that the Greengrass family was helping Voldemort's followers plan a new operation.
• Draco said Lucius had sent him books on healing magic, and Will advised him to consider learning healing spells alongside Dark Magic because of his hawthorn Wand.
• Will said he would contact the relevant people about the new operation and sent Draco to fetch Hermione.

Hermione asked Will to obtain four books from the Restricted Section so she could prepare for the possibility that Voldemort had returned, and Will agreed. In the second week of term, Umbridge began inspecting lessons and interrupted Professor McGonagall’s class, drawing Will and the Slytherins’ displeasure.

• Hermione asked Will to get her four Restricted Section books about antidotes, charms, and Dark Magic, explaining that she wanted to prepare for danger.
• Will agreed to obtain the books and advised Hermione to organize the others into a study group while Dumbledore handled concerns about Lupin.
• Umbridge began visiting other professors’ classes to observe them and take notes.
• Umbridge interrupted Professor McGonagall’s lesson, but McGonagall rebuked her and continued teaching the Vanishing Spell.
• Will demonstrated the spell for Sylvia and earned two points for Slytherin, then Umbridge interrupted him as he tried to ask McGonagall a question.

Umbridge interrupted McGonagall’s Transfiguration lesson and was ordered out, then appeared again at Herbology. On Tuesday, Will taught third-year students to brew the Draught of Living Death and found that he enjoyed teaching.

• Umbridge challenged McGonagall over teaching the Vanishing Spell, but McGonagall sent her out of the classroom.
• McGonagall told Will to save his questions for their tutoring session, and he agreed.
• Harry and the other Gryffindors saw Umbridge again at Herbology after Transfiguration.
• Will taught third-year students about the Draught of Living Death, awarded Ravenclaw two points for Calvin Harper’s answer, and explained the brewing process.
• Will noticed the students’ admiration and decided he liked teaching.

Will understood how difficult teaching Potions could be for young wizards, then received two werewolf gathering-place addresses from Snape. At Hogwarts, Umbridge challenged Lupin’s combat lesson, but Harry confronted her about Voldemort’s return, and Lupin refused to punish him; Umbridge warned that her investigation results would come within a week.

• Will corrected students’ mistakes while teaching the Draught of Living Death, and a quarter of the class failed to brew it properly.
• Snape returned and gave Will addresses for two werewolf gathering places used by former followers of Fenrir Greyback, who were making deals with the Death Eaters.
• Lupin led his fifth-year students to the edge of the Forbidden Forest for practical combat training, while Umbridge followed and objected to his lesson.
• Umbridge criticized Lupin for exposing students to combat and injuries, insisting he should teach from the textbook instead.
• Harry challenged Umbridge’s claim that the wizarding world was peaceful by mentioning Voldemort’s return and the Ministry murders.
• Lupin refused to deduct points from Harry, and Umbridge said the results of her investigation would be out within a week.

After Umbridge left, Lupin trained the students in defending against attacks, and Will impressed the class with his Transfiguration and Protego. Will then captured werewolves for experiments, successfully turned a Muggle into a werewolf, and began investigating how to separate the magic that caused the condition.

• Lupin had Will demonstrate defenses against offensive spells, and Will blocked attacks with Transfiguration and Protego.
• Lupin began calling students up for practical training, where they struggled against combinations of jinxes.
• Will raided a werewolf gathering in London's East End and captured its members for his experiments.
• Will explained that he planned to study whether werewolf transformations could be controlled or removed, and whether Muggles could be turned into werewolves.
• Will resumed his experiments, successfully transformed a Muggle into a werewolf, and began searching for the magical structure responsible for the werewolf state.

Will studied Werewolf transformation and realized Neville’s unusual Magic structure might help him separate a Wizard’s and Werewolf’s Magic. He later found Neville with Luna in the High Tower and asked him to come along for a private discussion.

• Will recorded a Werewolf’s Magic structure as the full moon triggered its transformation.
• Will recalled that Neville’s Magic structure had once been unusually uneven and considered it a possible breakthrough for his research.
• Will used a Memory Charm on the Werewolves.
• Neville told Luna and the others about the dangers of Biting Cabbage and the 1988 incident involving smuggled plants.
• Luna suggested using dangerous plants against the Dark Lord and his followers, and Will approved the idea.
• Will asked Neville to come with him so he could ask him a few things.

Will investigated whether Neville’s unusual magic and improving memory were connected to something in his childhood, and asked Dumbledore to arrange a meeting with Mrs. Longbottom. Augusta arrived at Hogwarts, where she learned Will was the one who wanted to question her.

• Will asked Neville whether anything unusual had happened while he was growing up, but Neville could recall nothing.
• Will asked Dumbledore to arrange a meeting with Mrs. Longbottom to discuss Neville’s magic.
• Dumbledore agreed to contact Augusta on the condition that Will follow his arrangements concerning Harry.
• Dumbledore and Will discussed Harry’s upcoming Occlumency lessons and whether Snape or Flitwick should teach him.
• Augusta arrived at Hogwarts that afternoon, and Dumbledore told her that Will wanted to ask her about Neville.

Will learned that Neville’s childhood memory problems began after the Death Eaters tortured him with the Cruciatus Curse and Mrs. Longbottom used a Memory Charm to erase his memories. He left Dumbledore and Mrs. Longbottom alone to talk, wondering whether the two spells had interacted.

• Will asked Mrs. Longbottom about Neville’s abnormal magical structure and childhood, with Dumbledore assuring her that Will could be trusted.
• Mrs. Longbottom revealed that Death Eaters had tortured Frank and Alice and used the Cruciatus Curse on Neville when he was a baby.
• Mrs. Longbottom said Neville later described memories of the attack, so she used a Memory Charm to make him forget, but her poor Charms skill also caused his forgetfulness.
• Mrs. Longbottom asked whether Will’s research could help Frank and Alice, then asked him to keep looking out for Neville.
• Dumbledore asked Will to step outside so he could speak privately with Mrs. Longbottom, and Will wondered whether the Cruciatus Curse and Memory Charm had reacted together.

Will researched how memory and the soul were connected as he considered whether the Cruciatus Curse and a Memory Charm had disrupted Neville’s magic. He began planning experiments to test the effects of damaged or altered memories on the soul.

• Will theorized that the Cruciatus Curse had damaged Neville’s soul as an infant and that Mrs. Longbottom’s Memory Charm had disrupted his magic structure.
• Will searched his Book Trunk and found a book called Memory and the Soul.
• Will read that research suggested memory was anchored to both the body and the soul, and that erasing memories could affect the soul.
• Will connected the book’s account of Soul Summoning to Neville’s partial memory loss and wondered whether soul damage and memory erasure could disrupt magic.
• Will considered creating a Ghost and testing what happened when someone’s memories were altered.

Professor Flitwick took Will for a walk by the Black Lake and urged him to rest instead of overworking himself. He gave Will a dueling manual and his research notes to help him prepare for the coming war.

• Professor Flitwick found Will and persuaded him to take a break with a walk by the Black Lake.
• Professor Flitwick questioned Will about his relentless research and warned him to balance work with rest.
• Will explained that Voldemort’s return and the threat of a new war drove him to grow stronger and learn more.
• Professor Flitwick gave Will a recent dueling manual that he could share with other young wizards.
• Professor Flitwick also gave Will his old notes on charms and magical research, and Will thanked him.
• Snape felt a chill run down his back while bottling a potion in his office.

Will tested the Cruciatus Curse on a werewolf whose memories he had damaged with repeated Memory Charms, hoping to learn how the curses affected magical structure. The werewolf's memories returned and his magic began to stabilize, so Will searched his fragmented memories to investigate the link.

• Will brought a werewolf he had used in Memory Charm experiments to his laboratory and repeatedly cast Crucio on him.
• The werewolf's memories returned, and he begged Will to stop torturing him.
• Will observed that the werewolf's unstable magical structure slowly began to recover as his memories returned.
• Will silenced the werewolf with Langlock and used Legilimency to examine his fragmented memories.
• Will wondered whether the werewolf's magical structure would keep repairing itself if his memories were erased again.

Will realized the Cruciatus Curse and Memory Charm could disrupt a werewolf’s magical structure, while Harry dreamed of Voldemort killing someone and torturing a huge snake. Dumbledore suspected the snake was a new Horcrux and asked Will to investigate it.

• Will observed that the Memory Charm stopped the werewolf’s damaged magical structure from repairing itself and considered how the two spells might work together.
• Harry woke from a dream in which Voldemort killed a stranger and cast a spell on a huge snake, then decided to tell Dumbledore.
• Harry told Dumbledore about the dream, and Dumbledore grew grave as he listened.
• Dumbledore summoned Will and said Voldemort might have made the snake a new Horcrux.
• Dumbledore asked Will to watch the snake and confirm whether it was a Horcrux, while Will suspected it was Nagini.

Harry confronted Umbridge in History of Magic after she dismissed Voldemort’s return as a rumor and insulted Dumbledore, earning detention. Will accepted that Harry would have to endure Umbridge’s punishment while he continued his experiments into separating the werewolf form.

• Dumbledore said he intended for Severus to teach Harry Occlumency.
• Harry struggled through Umbridge’s History of Magic lesson as she praised Fudge and criticized Dumbledore and Defence Against the Dark Arts.
• Harry stood up to Umbridge, defended Dumbledore, and shouted that Voldemort had returned.
• Umbridge took ten points from Gryffindor and ordered Harry to detention in her office at five o’clock.
• Will heard about Harry’s detention at dinner, then left to continue his experiments.