Chapter Summaries

Sean concluded that another version of himself had been influencing him and trusted that this self would not harm him. As Karkaroff prepared to leave Hogwarts, Sean coordinated a deception with Reinhardt and then led a group of wizards out to fight for innocent children.

• Sean reasoned that his bloodline changes and instincts came from another Sean Wallop, and he decided to trust that self rather than fear being replaced.
• Sean and Stephanie left the Room of Requirement and joined the end-of-term banquet, where Karkaroff apologized for Dumbledore's death and hurried to arrange Durmstrang's departure.
• Sean said goodbye to students from the other schools while his real body met Reinhardt outside the grounds to plan a staged conflict and deception.
• Sean entered a crowded Room of Requirement, confirmed the preparations to Professor Flitwick, and joined the gathered families, students, and veteran wizards as they set out to protect innocent children.

Karkaroff's inspection uncovered a Portkey hidden by Isamar Trelawney, while Sean and the Hogwarts team secretly reached Durmstrang. Sean found evidence of extensive surveillance and Returner activity, then triggered the castle alarm as Professor Flitwick's forces launched their operation.

• Karkaroff ordered a renewed inspection of the students who had clashed with Hogwarts after a shadow warned him to capture Sean if he infiltrated Durmstrang.
• Reinhardt Nott exposed Isamar Trelawney during the inspection, and the wizards found a Portkey concealed in his robes.
• Sean told Professor Flitwick's hidden group they were nearing Durmstrang, where his magical creatures waited to support them.
• Reinhardt led the returning Durmstrang students toward the castle while Sean used a secret passage to enter and discovered eye-patterned books used for surveillance and a Black Hood ghost.
• Professor Flitwick and more than a hundred wizards launched their operation from Reinhardt's room as Sean revealed himself elsewhere and triggered the alarm.

Sean infiltrated Durmstrang to distract its defenders while Professor Flitwick led a team through the castle’s trapped corridor. After Daisy Potter’s giant Fire Dragon Patronus destroyed a huge Dementor, Durmstrang’s people arrived and the team prepared for a direct fight.

• Sean deliberately triggered Durmstrang’s alarm, destroyed the surveillance books, and evaded two Returners as he raced through the castle.
• Professor Flitwick led the Hogwarts team toward the abandoned dormitories while the students were sealed in their rooms.
• James Potter and Harry used brought-in rocks and dirt to build a fortress, then helped destroy the attacking gargoyles with coordinated spells.
• Professor Flitwick’s team advanced through the twisting corridor’s traps while Professor Babbling’s group dismantled its Ancient Runes formation.
• A delayed step released a giant Dementor, but Daisy Potter’s silver Fire Dragon Patronus led the others in destroying it.
• Durmstrang’s people arrived and fired a dark green spell at the Hogwarts team.

The Hogwarts team fought Karkaroff’s forces and used a Mandrake to expose the Returners inside Durmstrang. Sean discovered far more Returners than expected, drew them into a forbidden room, and trapped them behind Protego Diabolica as the battle continued.

• Professor Flitwick fought Karkaroff while Neville pulled a Mandrake from a flowerpot, forcing many living Durmstrang wizards to collapse in pain.
• Stephanie used Nihilo Intuor to stop a Returner ambushing Neville, then rescued him when a bandaged figure from a painting silenced the Mandrake.
• Karkaroff animated Durmstrang’s suits of armor, and Sherlock and Stephanie counted at least twelve unaffected figures while estimating that twenty or more Returners remained in the castle.
• Sean realized that more than forty Returners were pursuing him and narrowly dodged a powerful spell from Andros, who recognized Sean’s earlier disguise as Grindelwald.
• Sean retreated into a forbidden room bearing the Deathly Hallows symbol and cast Protego Diabolica, surrounding himself with blue fire as more than fifty Returners gathered outside.

Sean unleashed the Dark Sleeper and attacked the Returners, discovering that his Killing Curse could annihilate their souls and force them to fight cautiously. Meanwhile, Hogwarts’s fighters struggled against Durmstrang until the Weasley twins prepared a flashbang attack.

• Sean released terrifying dark power and fired a Killing Curse at Andros, but Andros dodged by sinking into the floor while the curse annihilated another Returner.
• Andros ordered the Returners to keep their distance and use wide-range spells, and Sean continued attacking as Protego Diabolica filled the room with blue flames.
• Harry joined the battle on a broom, and Hermione saved him with a Summoning Charm while students and adult wizards fought Durmstrang’s seasoned Dark Wizards.
• Ian Teach pulled Patricia out of danger, while Daisy protected allies with her Dragon Patronus and Stephanie watched for Returners emerging from the walls.
• Fred and George flew above the battlefield, handed Harry round objects, and shouted “Aha, Flashbang!” as Hogwarts’s fighters put on glasses.

The Hogwarts group used a blinding emblem and Chinese Chomping Cabbages to overwhelm the Durmstrang fighters, while Sean ambushed the Returners with river water that exposed their souls and killed nearly all of them. One Returner escaped and headed to warn Andros, but was captured by an unknown figure with enormous orange-yellow snake eyes.

• The Weasley twins signaled the Golden Dawn members to activate their emblems, blinding nearly every Durmstrang fighter while the Hogwarts group attacked from behind a shield.
• Harry threw Chinese Chomping Cabbages into the chaos, and Professor Flitwick used spell combinations to subdue and disarm the blinded fighters.
• Nicholas Malfoy tried to attack the Hogwarts group, but Sean appeared and killed him before he could cast his spell.
• Stephanie revealed the hidden Returners, and Sean released dragons and an Occamy to destroy their hiding places before splashing them with river water and killing nearly twenty with Avada Kedavra.
• One Returner escaped Sean's attack and fled to warn Andros, but a mysterious figure with orange-yellow snake eyes captured him.

Sean used disguises, illusions, and Killing Curses to ambush Andros’s Returners at Durmstrang, but Andros regrouped them and led them outside toward the other battlefield. There, Hogwarts had taken control of the ruins, and a wounded Karkaroff threatened to die with his opponents.

• Sean disguised himself as Ethan and killed several Returners, but Andros avoided his ambush and exposed him.
• Sean tried another attack in disguise, but Andros spotted him and ordered the Returners to check one another for infiltrators.
• Andros summoned a giant Patronus, recognized that many incoming Killing Curses were illusions, and led the Returners through the walls toward the grounds.
• Sean attacked the departing Returners as Andros headed toward the other battlefield, while the Hogwarts group finished clearing the damaged corridor.
• Karkaroff, badly wounded and cornered behind a suit of armor, shouted that he would take his opponents down with him.

Karkaroff awakened Durmstrang Castle before dying, while Sean battled Andros and the Returners on the training grounds. Andros believed Sean was nearly defeated, but a suspicious voice answering his order left him realizing danger was close.

• Professor Flitwick destroyed Karkaroff's armor, but Karkaroff completed his spell before Flitwick struck him with a fatal curse.
• Karkaroff died after warning that worse things than death existed, and Durmstrang Castle began to awaken and wrench itself from the earth.
• Andros ordered the Returners to divide into groups and counter Sean's Killing Curses, then identified Sean's Fire Dragon form and had it bombarded into a crater.
• Sean repeatedly targeted Andros's group with Killing Curses, forcing them underground while Andros concluded Sean was running out of strength.
• When Andros ordered Detection Magic, an unauthorized Returner answered, and Andros tried to sink underground as his companions turned toward the voice.

Sean defeated nearly all the Returners but failed to capture Andros, then returned to find Hogwarts’s group besieged by two castle-made monsters. He realized the imprisoned Young Wizards were being turned into Obscurials, and just as the group considered retreating, a familiar voice spoke.

• Sean used the Basilisk and a carefully staged ambush to kill most of the Returners, but a strange bird cry and a black figure helped Andros escape.
• Sean returned to find the Hogwarts group struggling against two enormous magical monsters made from Durmstrang Castle, while Professor Babbling worked to break the prison’s Ancient Runes array.
• An Obscurus attacked Professor Babbling through the slightly opened doors, and Sean and Aurelius sensed a powerful dark presence inside.
• Sean concluded that the Returners and Karkaroff had been cultivating Obscuruses by imprisoning Young Wizards and forcing them to suppress their magic.
• Sean told the group that the imprisoned Young Wizards were all Obscurials, leaving them uncertain whether to continue the rescue as the monsters kept attacking.
• A cheerful, lazy voice called out from the air just as the group faced the choice of retreating.

Grindelwald arrived at Durmstrang, destroyed its magical monsters, and revealed that the International Confederation of Wizards had been fighting the Returners across Europe. After Sean investigated the sealed prison, Grindelwald decided to attack the roughly seventy weakened Obscuruses inside.

• Grindelwald emerged from the castle, slowed the Double-Headed Eagle and the other magical monster without using his wand, then made them collapse.
• Sean told Grindelwald that the Returners could not return after dying again, and Grindelwald expressed delight at Dumbledore's chance to return.
• Grindelwald asked Hogwarts to leave most of its people behind while the International Confederation of Wizards took charge of Durmstrang and explained that he had been clearing Returners from European Ministries of Magic.
• Grindelwald asked Sean to use his Obscurus to inspect the sealed prison, and Sean sensed around seventy Young Wizards whose Obscuruses remained weak and subdued.
• Grindelwald began tracing Runes on the prison seal so he could attack the Obscuruses while they were still weak.

Grindelwald used a Rune magic array to borrow power at the cost of lifespan, then unleashed the imprisoned Obscurials and fought the giant they formed with Albus's Partis Temporus. After the battle vanished in a blinding explosion, Sean and Aurelius sensed the Obscurial dark power spreading through the world and prepared to guide it back.

• Grindelwald explained that rule variants were forms of Runes governed by equivalent exchange, and Sean realized their greater power required a greater price.
• Grindelwald completed a borrowing array and opened the sealed prison, releasing at least seventy Obscurials.
• The freed Obscurials overwhelmed the room with dark power, but Grindelwald's flames broke their pressure and he assigned Sean and Aurelius to guide the power after the Obscurus disappeared.
• Grindelwald revealed he had borrowed Albus's Partis Temporus and used it against the Obscurial giant formed from the prisoners' darkness.
• Sean recovered his sight and hearing after the clash and learned that the battle had turned night into day before the sky returned to normal.
• Aurelius warned Sean as the Obscurial dark power began drifting across the world without its source.

Sean used Dark Sleeper to understand how Aurelius was returning the Obscuruses’ power to the world, but the ability attracted every remaining Obscurus and nearly drove him to absorb them. After regaining control, Sean found himself trapped as his own Obscurus began to leave him, and he started searching for a way to break the enclosure.

• Sean searched for Grindelwald while Aurelius guided the Obscuruses’ dark power away one portion at a time and Professor Flitwick tended to the endangered children.
• Sean activated Dark Sleeper and realized Aurelius was using his Obscurus to attract and enclose the ownerless dark power until it returned to the world.
• Dark Sleeper drew more than fifty Obscuruses to Sean at once, and their power formed a black cocoon around him.
• Sean nearly reached out to absorb the Obscuruses, but a vision and Dave’s calls helped him deactivate Dark Sleeper and recover his senses.
• The dark power trapped Sean, his own Obscurus began to return to the world, and a black vortex started turning in his pupils as he searched for a way out.

Sean chose to draw the dozens of Obscuruses into his Soul World and remove their destructive instincts, despite knowing the dark power he released would strengthen Pride. After enduring the influx, he calmed every Obscurus and Pride absorbed the resulting red mist.

• Sean weighed whether to send the Obscuruses into the Realm of Illusion, where Herpo might claim them, or let Pride gain their destructive power, and chose the latter.
• Sean opened his Soul Floating Island to the outside world, drawing every Obscurus into it as Professor Flitwick and Aurelius realized they could not reach him.
• The Obscuruses poured into Sean through his eyes, leaving him in agony while the suspended children fell and Professor Flitwick caught them.
• Pride appeared on the Sky Island and recognized Sean's plan to separate the Obscuruses' destructive instincts.
• Sean used Avada Kedavra on each Obscurus until they calmed, releasing a river of red mist that Pride absorbed.

Sean sealed the Obscuruses on his Soul Floating Island and learned that Grindelwald had deliberately forced him to choose Dumbledore’s approach. After the wounded returned to Hogwarts, Sean discovered that the ring belonging to the other Sean Wallerup had disappeared.

• Sean trapped the Obscuruses in a locked house on his Soul Floating Island, then taunted Pride before leaving the island.
• Aurelius and Professor Flitwick learned that Sean had sealed away the Obscuruses, and Grindelwald appeared and revealed that Sean had chosen Dumbledore’s method.
• Grindelwald teased Sean about withholding the reason for the choice, then vanished before Sean could ask him for help with Ariana’s matter.
• The survivors returned to Hogwarts, where the injured were treated and three old wizards’ deaths could not be publicly honored as heroic sacrifices.
• Daisy noticed Hermione acting strangely, while Ron said Sean had gone to the Room of Requirement looking anxious.
• Sean searched the Room of Requirement and realized that the ring belonging to the other Sean Wallerup had disappeared.

Sean discovered that the ring left by his other-Timeline self had vanished, despite the protections around it, and asked Stephanie, Daisy, and Hermione to help investigate. Hermione revealed that since the Time Incident she had felt irresistibly drawn to the hiding place, leaving the group to consider whether the ring had influenced her or disappeared through some other temporal anomaly.

• Sean realized the other-Timeline ring had disappeared from his ring, and concluded it was most likely stolen during the operation against Durmstrang.
• Sean sought ideas from Stephanie, then brought Daisy and Hermione to the Room of Requirement and explained the other Timeline and the missing ring.
• Stephanie suggested that someone familiar with Sean could have bypassed his protections, while Daisy and Hermione questioned who could have done so.
• Hermione admitted that she had felt a powerful urge to approach the ring's hiding place and take whatever was there, though she insisted she had not stolen it.
• Sean reassured Hermione, and Stephanie proposed examining her because the Time Incident might have caused strange effects—or the ring might have vanished on its own.

Sean investigated the disappearance of his ring but found no explanation, then attended Hogwarts’ subdued end-of-term celebrations and traveled with the students on the Hogwarts Express. As summer began, he invited Capen Roman and Britney to join an outdoor Spell Combat Class focused on real combat.

• Hermione and the others searched for Sean’s missing ring, and a Hospital Wing examination found no abnormality in Hermione.
• Sean considered whether Hermione’s memory had been tampered with or whether the ring had vanished by itself, then decided he needed to consult the professor with memories from another Timeline.
• Professor McGonagall awarded the House Cup to Ravenclaw and wished the students a pleasant summer holiday.
• On the Hogwarts Express, Hermione pursued George and Fred after Sean let them take their North American Wolf Spiders, while Sean reflected on how his teaching had strengthened younger students.
• Sean invited Capen Roman and Britney to his summer Spell Combat Class and said it would take place outdoors and focus on real combat.

Sean took a break from preparing combat training plans to meet Grindelwald on his family’s private island. Grindelwald reported on Ariana, the Ministry, and preparations for Herpo, then left Sean with a cryptic explanation of why he had always liked him.

• Mrs. Wallop urged Sean to leave his room, rest, and eat with the family during their seaside vacation.
• Sean noticed a magical fluctuation near the pier and met Grindelwald, who had used the captain to arrange their private conversation.
• Grindelwald told Sean that Ariana’s situation had been resolved and that he had purged the Ministry of Returners while restoring officials who had been under the Imperius Curse.
• Grindelwald approved Sean’s practical combat training plan and promised to send him materials listing possible targets.
• Sean asked what the other Sean Wallop had been on that Timeline, and Grindelwald replied that he liked Sean because Sean Wallop had always remained the same.

Sean learned more about Grindelwald’s other Timeline and received a way to contact him before Grindelwald departed. As Sean’s students and Teaching Assistants gathered for practical combat training, a sudden darkness struck the restaurant and Charlotte called out an enemy attack.

• Sean asked Grindelwald about the other Timeline, and Grindelwald explained that he had ruled the prosperous Wizarding World as Hogwarts headmaster and had taken a liking to Sean.
• Sean asked about Herpo and his missing self in Grindelwald’s memory, and Grindelwald said Herpo’s attack had been led by a vanguard and that the Pride who attacked was not Sean.
• Grindelwald gave Sean a Deluminator for contact and said his people could assist through Ministries of Magic around the world before he vanished.
• Charlotte and Colton bickered at a London restaurant while students, including Milani and Capen, speculated about their relationship and waited for Sean.
• The sunlight abruptly vanished, leaving Capen unable to see Milani, and Charlotte shouted that they were under attack.

During Sean's practical combat training, he plunged the students into darkness and attacked them while they tried to organize a defense. The exercise ended with Sean revealing that he had fought at first-year strength, leaving Capen questioning how much Sean had held back.

• Darkness and smoke filled the restaurant, separating the students from Charlotte and Colton as the frightened group tried to find one another.
• Capen identified the attackers' spells and helped classmates gather, while Bram Laid organized them behind a Transfigured mud wall.
• The barrier became a trap when the ground exploded, leaving most students defeated and only a few still able to fight.
• Sean stopped the attack and revealed himself, explaining that he had limited his strength because the exercise was a test.
• Capen asked whether Sean had suppressed his strength, and Stephanie said he had fought at the level Sean had reached at the end of his first year.

Sean Wallerup reviewed his students’ first combat test, then demonstrated his overwhelming power and challenged them to keep up with him. He chose a remote island for their next training, where the young wizards watched a Hebridean Black Dragon hunt.

• Sean’s students recovered from the practical test, discussed his strength, and began reviewing their mistakes.
• Sean explained Capen’s tactical errors, including overlooking Rai Pena and the restaurant’s connection to Sean’s allies.
• Sean called the students vulnerable, then summoned flames and transformed creatures to demonstrate his power and urge them to fight to keep up.
• Sean, Hermione, and the others chose a location for the students’ next training, and Sean said it was time to go home.
• On the island, a Hebridean Black Dragon killed a deer as the Disillusionment-protected students watched in terror and excitement.