Arc 10The Hidden Chamber

Shawn freed Kingsley and Tonks, explored Salazar Slytherin’s Hidden Chamber, and claimed its basilisk as his pet. As he pursued new research and prepared Percy to join the Pentagram, the story left off with Shawn’s Quidditch match against Hufflepuff underway.

  • Shawn exposed Tonks and Kingsley as undercover agents, then released them and sent a message to Lupin about Werewolf Potion.
  • Shawn visited Neville’s parents and promised Neville he would research a way to restore their shattered memories.
  • Shawn entered the Hidden Chamber, awakened the basilisk, and nearly died when its gaze overcame his magical defenses.
  • Shawn recovered, named the basilisk Tina, and set her to explore an underground passage while warning her not to harm people or the unicorn.
  • Shawn began studying alchemy with Old Percy and recruited Percy Weasley to lead internal disciplinary investigations for the Pentagram after leaving school.
  • Shawn learned that Tina had found a vast underground shelter, then worked with the Hufflepuffs on hot pot and declined Hermione’s request to intervene in Harry’s troubles.
  • Shawn practiced Animagus transformations, kept Wormtail confined, and passed up the chance to enter the room holding the Philosopher’s Stone.
  • Shawn began his Quidditch match against Hufflepuff, where his Bludger knocked a Quaffle back through the goal hoop.
Chapters 226–250 Vol. 3 Read

Ch. 226Death squad attack

Shawn confronted old pure-blood supremacists and suspected spies at the Pentagram gathering, then stopped a death squad operative from detonating himself. After capturing the surviving spies and finishing the Dark Mark alterations on Christmas Day, Shawn watched Harry and Draco play in the snow.

  • Shawn stripped Bulstrode, Avery, and the other old pure-blood supremacists of active duties and ordered them to stand aside.
  • Shawn noticed Tonks’s changing hair among the suspected spies, while Kingsley tried to keep her from revealing herself.
  • A spy began a self-detonation spell, and Kingsley warned everyone to scatter.
  • Shawn sent a black, lightning-wreathed water python after the operative, which carried him through the ceiling before he exploded outside.
  • Lucius confiscated the captured spies’ wands, separated Tonks and a bald prisoner for careful treatment, and sent the others to Pierce for questioning.
  • Shawn altered the Death Eaters’ Dark Marks over two days, then watched Harry and Draco play in the snow on Christmas Day.

Ch. 227The Weasley family

The Weasleys gathered for dinner after George, Fred, and Ginny’s prank with firecrackers, while Arthur and Molly worried over Percy’s choices and Ron’s sudden changes. Arthur suggested taking Ron to a Muggle psychologist after Molly revealed that he had recurring nightmares.

  • George, Fred, and Ginny blasted gnomes with firecrackers until George was caught in an explosion and chased the twins back to the house.
  • Molly scolded the children, then sent George to fetch Percy and Arthur for dinner and talked with Arthur about Percy’s refusal to change his ways.
  • Arthur reflected on Bill and Charlie’s sacrifices and Percy’s new path as the family enjoyed Percy’s Christmas gifts.
  • Arthur and Molly discussed Kingsley and Tonks being held at Malfoy Manor and worried that Ron’s sudden change and recurring nightmares were unusual.
  • Arthur suggested that they take Ron to a Muggle psychologist.

Ch. 228Christmas alone, Christmas together

Vita returned to Nurmengard for Christmas but was told Grindelwald did not want to see her that night, so she spent the holiday alone in her room. While celebrating with Dumbledore, Grindelwald realized that neither of them had taught Shawn several advanced spells and suspected another powerful wizard had instructed him.

  • Vita returned to Nurmengard after finishing an urgent assignment at the Austria Ministry of Magic and learned that Dumbledore had been visiting Grindelwald every day.
  • Caffet told Vita that Grindelwald had instructed him not to let her disturb him that night, and Vita declined the Yule Ball invitation.
  • Vita admired the Carousel Shawn had given her, sent her Swan Patronus to decline the ball, and fell asleep exhausted.
  • During Christmas dinner, Dumbledore and Grindelwald discovered that neither had taught Shawn Fire Escape Shield or Water Prison.
  • Dumbledore and Grindelwald speculated that a Legendary wizard or another hidden power had taught Shawn, and Dumbledore proposed an immediate investigation.
  • Grindelwald stopped Dumbledore from leaving by threatening to attend the Yule Ball, and Dumbledore agreed to remain and celebrate Christmas.

Ch. 229Purple Shadow and Fawkes

Shawn spent Christmas with Purple Shadow and Fawkes before meeting the captured Tonks and Kingsley at Malfoy Manor. He apologized for the delay and prepared to discuss their confinement with them.

  • Purple Shadow returned to comfort Shawn, and Fawkes followed it from Hogwarts to ask to stay for Christmas.
  • Shawn agreed to let Fawkes stay, and the phoenix gave him a dish of tears as a Christmas gift.
  • Shawn asked Kreacher to sort his presents, changed into a formal outfit, and brought Purple Shadow and Fawkes with him on a floating perch.
  • Shawn dismissed the Combat Department guards and took the confiscated wands before entering the room where Tonks and Kingsley were held.
  • Tonks recognized Fawkes, and Shawn told her and Kingsley that he had kept them confined for three days because they were undercover agents.

Ch. 230Listen to a song

Shawn played a sorrowful harp melody for Kingsley and Tonks, using music and magic to reveal his aspirations before letting them leave Malfoy Manor. Kingsley agreed to tell Lupin about the Ministry’s Werewolf Potion, while Tonks left with a more sympathetic view of Shawn.

  • Tonks restored her face, and Kingsley confirmed that the phoenix was Fawkes before asking Shawn when they could leave.
  • Shawn played the harp, drawing Kingsley and Tonks into a vision of a lonely boy’s hardship and resolve, until Purple Shadow and Fawkes joined in and interrupted the piece.
  • Shawn let Kingsley and Tonks leave and asked him to tell Lupin to collect Werewolf Potion from the Ministry’s werewolf management department.
  • Kingsley agreed to pass on the message, collected the wands, and left the manor with Tonks.
  • Outside, Kingsley said Fawkes’s attitude toward Shawn mattered, while Tonks defended Shawn; Kingsley then dismissed her from the mission and Apparated away.

Ch. 231The Malfoy family's Christmas dinner

Shawn attended Christmas dinner at Malfoy Manor, where Harry chose to stay with Draco for a few more days. After leaving, Shawn went to St. Mungo’s Hospital to visit Neville’s parents.

  • Shawn noticed Astoria’s unusual recognition of him and remembered that she might help him investigate Fantastic Beast Animagus transformations.
  • Shawn learned from Tom that Salazar’s research records were still in the Chamber of Secrets and found out how to open the Hidden Chamber.
  • Harry decided to remain at Malfoy Manor and asked Shawn to handle Sirius’s case.
  • Shawn left the manor with Purple Shadow and Fawkes, then went to St. Mungo’s Hospital to visit Neville’s parents.

Ch. 232Which was more evil?

Shawn visited Neville's parents at St. Mungo's and examined the damage Bellatrix's Cruciatus Curse had done to their souls and memories. He promised Neville he would research a way to restore them, though he knew the task would be difficult.

  • Shawn visited St. Mungo's, where watching the healers treat patients renewed his plans for potions, medicinal meals, and healing magic.
  • Shawn asked Dilys Derwent where the Longbottoms were and learned they were in the Spell Damage Department's long-term ward.
  • Shawn met Neville at his parents' bedsides and secretly examined Frank and Alice Longbottom with Legilimency.
  • Shawn found their memories shattered and reflected that the Cruciatus Curse could leave victims suffering worse than death.
  • Shawn told Neville he would research a way to piece his parents' memories back together, and Neville thanked him and promised to wait.

Ch. 233Tom's Christmas

Tom received a replica locket from Shawn while investigating the Albanian Forest, where he learned of a thousand-year-old temple of faith and was offered cooperation. At the Black family home, Theodore told Shawn he planned to leave school to hunt Old Nott, and Shawn gave him supplies and a way to summon help.

  • Tom examined Regulus's replica locket, then confronted a cloaked figure who offered to cooperate in capturing Voldemort and exploring an ancient temple of faith.
  • The cloaked figure began explaining the temple's history and its connection to a thousand-year-old age of magic.
  • Kreacher told Shawn that Theodore was waiting outside, and Shawn found him covered in snow with an application to withdraw from school.
  • Theodore explained that he planned to hunt Old Nott and gain experience so he could protect Shawn and fight the traitors.
  • Shawn accepted Theodore's decision and gave him a Magical Energy Storage Card and Purple Shadow's tail feather so he could call for help.

Ch. 234Unwrapping presents

Shawn unwrapped his Christmas gifts, then faced Harry’s questions about Sirius as the holiday ended. He left Draco to explain the situation and went to practice in the Forbidden Forest, where a curious unicorn followed him.

  • Shawn unwrapped gifts from Dumbledore, Grindelwald, his professors, and friends, including an enchanted locket and a Firebolt prototype.
  • Shawn learned that Harry and Draco had spent the holiday at Malfoy Manor without doing their homework.
  • Harry asked Shawn when Sirius would be released, and Shawn admitted privately that Sirius might already be dead because Theodore had found no trace of him in Albania.
  • Shawn asked Draco to explain Sirius’s situation to Harry, then Apparated to the Forbidden Forest to practice spells.
  • A unicorn followed Shawn into the forest, and he tried to beckon it closer with plants and herbs.

Ch. 235The mystery of the Forbidden Forest

Shawn followed a unicorn into a hidden underground passage network in the Forbidden Forest but lost its trail and left without discovering its purpose. After winter break, he returned to Hogwarts and worried when Vita was absent from the feast.

  • Shawn realized the unicorn was deliberately following him, attacked it with Purple Water Chains, and chased it into an underground opening.
  • Shawn explored the damp tunnels, lost the unicorn's tracks near a fault lake, and wondered whether the passages connected to Hogwarts before abandoning the search.
  • The unicorn returned to the opening carrying an unidentifiable crystal on its horn, checked whether Shawn remained nearby, and went back into the cave.
  • The students returned to Hogwarts on the Hogwarts Express, where Harry kept to himself, Draco rushed to finish his homework, and Hermione joined Penelope's patrol.
  • At the evening feast, Shawn noticed Vita was missing from the High Table and grew worried.

Ch. 236Vita Had Yet to Return

Vita questioned Grindelwald about Shawn’s teaching and Fawley, but left without learning more about the prophecy. The next day, Shawn learned Vita had not returned, then overheard Harry, Draco, and Hermione pressing Hagrid about the Philosopher’s Stone and deduced that Hagrid had gone abroad to win over the giants.

  • Vita asked Grindelwald whether he had further instructions for teaching Shawn, and he praised her work.
  • Vita asked what Grindelwald knew about Fawley; he said Fawley was not currently an enemy but could no longer be read clearly.
  • The next day, Shawn asked Lockhart about Vita and learned she still had not returned.
  • Shawn went to Hagrid’s hut to borrow roosters for his plan to tame the basilisk and overheard Harry, Draco, and Hermione questioning Hagrid about Fluffy and the Philosopher’s Stone.
  • Shawn heard Hagrid describe his trip abroad and inferred that he had gone to win over the Giant Tribe.

Ch. 237A trip to the Chamber of Secrets

Shawn entered the Chamber of Secrets through the abandoned girls' bathroom and explored the underground tunnels, finding the Basilisk’s shed skin before opening the chamber’s hidden Trapdoor. He reached Salazar Slytherin’s statue, while the Basilisk’s whereabouts remained unknown.

  • Shawn transformed three roosters into buttons, left a Galleon at the coop, and returned to Hogwarts.
  • Shawn entered the abandoned girls' bathroom, muffled Moaning Myrtle’s sobbing, and opened the washbasin entrance in Parseltongue.
  • Shawn flew through Hogwarts’ sewers into a cavern, found and collected the Basilisk’s shed skin, and located the Trapdoor.
  • Shawn opened the Trapdoor with Parseltongue and entered the Chamber of Secrets with his Yinglong Patronus lighting the way.
  • Shawn reached the platform before Salazar Slytherin’s enormous statue and examined it.

Ch. 238Basilisk, you glutton!

Shawn summoned the basilisk in the Chamber of Secrets and discovered it recognized him as Slytherin’s heir, though he did not know why. After feeding the hungry creature, he entered the Hidden Chamber and found the basilisk’s sleeping room.

  • Shawn spoke the password in Parseltongue, and the statue opened to reveal the basilisk, which kept its eyes closed and declared that it obeyed him.
  • Shawn wondered whether the statue had verified his bloodline and resolved to investigate his family tree and his missing mother’s identity.
  • Shawn fed the basilisk three transfigured roosters and learned that the Giant Squid drove it away from hunting in the Black Lake.
  • Shawn told the basilisk to wait while he explored the Hidden Chamber, then flew through the statue’s mouth into a damp corridor.
  • Shawn inspected a foul-smelling room containing a snake pillar, skeletons, and broken venomous fangs, which he suspected was where the basilisk slept.

Ch. 239I'm Done For!

Shawn explored Salazar Slytherin’s hidden teaching facility, copied books that inspired his Animagus research, and prepared to leave. He accidentally met the basilisk’s gaze, survived through an automatic magical defense, and sank unconscious and helpless to the bottom of the pool.

  • Shawn opened the Parseltongue-locked bronze doors and explored Salazar Slytherin’s office, finding a portrait and several surviving books.
  • Shawn carefully read and copied the books, including disturbing research on grafted creatures and magical energy, and found inspiration for his magical-creature Animagus research.
  • Shawn decided to return with Kreacher to clean and furnish the office before continuing his research there.
  • Shawn flew out through the statue’s mouth and came face-to-face with the basilisk, whose gaze began to petrify him.
  • Shawn’s magical defenses erupted in red and purple light, blinding the basilisk and saving his soul, but draining his magic and leaving him paralyzed.
  • Shawn fell into the pool as the basilisk thrashed, and a wave knocked him to the bottom.

Ch. 240"Dragon and Phoenix Battle"

Shawn survived the basilisk’s attack and stopped Fawkes and Purple Shadow from fighting it, declaring the serpent his new pet. He began making glasses so he could safely look at the basilisk, while the two birds resumed their jealous squabbling.

  • Shawn regained consciousness underwater, and Fawkes carried him to safety while Purple Shadow fought the basilisk above.
  • After recovering with potions and magical energy, Shawn summoned his Patronus and saw the basilisk battling Fawkes and Purple Shadow.
  • Shawn ordered everyone to stop and announced that the basilisk was his new pet, prompting the serpent to retreat into the pool.
  • Shawn tried to convince Purple Shadow that the basilisk could be its mount, but Purple Shadow and Fawkes resumed fighting over his attention.
  • Shawn told the basilisk in Parseltongue to wait, then turned away and began making glasses to protect himself from its eyes.

Ch. 241The Snakewood Wand

Shawn protected the Basilisk’s eyes with sunglasses, then discovered that Salazar Slytherin’s statue was missing its Snakewood Wand and suspected that returning it might reveal a secret. He shrank the hungry Basilisk enough to transport it and left the Chamber of Secrets with Fawkes and Purple Shadow for the Forbidden Forest.

  • Shawn crafted sunglasses for the Basilisk and let Purple Shadow perch on its head.
  • Shawn parted the pool around Salazar Slytherin’s statue and noticed its right hand was empty, recalling the Snakewood Wand’s history and suspecting it belonged there.
  • Shawn released the water and wondered whether to seek the Snakewood Wand in the United States, then asked the hungry Basilisk if it could shrink.
  • Shawn used a Shrinking Charm and a Magical Energy Storage Card to reduce the Basilisk to three meters long.
  • Shawn persuaded Purple Shadow to rest and asked Fawkes to take them to the Forbidden Forest; Fawkes carried the group away in a blaze.

Ch. 242One Miserable Spider

Shawn brought Tina, a Basilisk, to the Acromantula colony, where they hunted the spiders for food and magic. After warning Aragog to obey him, Shawn left Tina to explore an underground passage in the Forbidden Forest and flew away before dawn.

  • Shawn named the Basilisk Tina and let her eat the Acromantulas while he harvested their magic into Alchemy Cards.
  • Shawn asked Aragog how many spiders remained and whether Hagrid had suspected anything; Aragog said more than a thousand large spiders remained and that Hagrid believed they had frozen to death.
  • Shawn threatened Aragog and killed a nearby spider to remind him that Shawn could replace him as colony leader.
  • Shawn led Tina to an underground passage and instructed her to investigate it, avoid eating people or the Unicorn, and stay safe.
  • Shawn tucked one of Purple Shadow's feathers beneath Tina's reverse scale and flew out of the Forbidden Forest before dawn.

Ch. 243Vita's belated Christmas gift

After returning to Hogwarts, Shawn reflected on what he had learned in the Chamber of Secrets and arranged for Lucius to establish contacts in the United States. Vita then gave him a Two-Way Mirror and introduced Old Percy as his alchemy teacher, leaving Shawn eager to begin studying with him.

  • Shawn bathed, treated his aching lower back, and reflected on his discoveries about souls, death, and new spell techniques in the Chamber of Secrets.
  • Shawn decided to have Lucius send people to the United States to build commercial connections and gather intelligence.
  • Shawn questioned Professor Flitwick about Petrificus Totalus, then listened as Lockhart analyzed flaws in his published books.
  • Lockhart summoned Shawn to his office, where Shawn found a Two-Way Mirror and Vita revealed it was his belated Christmas gift.
  • Vita introduced Old Percy as a master alchemist, and Shawn accepted the chance to study under him.

Ch. 244An alchemist to do the work

Shawn learned about alchemy from Old Percy and showed him passages from the Book of Abraham, which Old Percy eagerly copied to investigate. Shawn then visited Snape about his painful lower back and learned that magical energy had accumulated there.

  • Shawn watched Old Percy explain alchemical history and theories through a two-way mirror.
  • Shawn showed Old Percy obscure passages from the Book of Abraham, and Old Percy copied and translated them before ending their lesson to test the ideas.
  • Shawn put away the Book of Abraham and went to the Potions Office to ask Snape about his lower-back pain.
  • Snape examined Shawn and determined that magical energy from an object had accumulated in his lower back, advising him to disperse it with his own magic.

Ch. 245Strange magical energy

Shawn discovered that an unexplained force may have entered his lower back in the Chamber of Secrets, though he concealed his concern from Snape. He summoned Percy to discuss the restless members of the Pentagram and considered whether Percy could take on a more active role.

  • Shawn recalled striking the Salazar Statue's index finger in the Chamber of Secrets and suspected it had put something strange into his lower back.
  • Snape gave Shawn a Magic-Dissolving Potion and said the Alchemy Machine Tool had reached about a second-year potion-making level.
  • Snape warned Shawn that some Pentagram members were restless and Yaxley had done nothing, while Shawn considered recruiting Percy to help manage the organization.
  • Shawn summoned Percy to the Black Lake and spoke with him about his family and his loyalty to Shawn.
  • Percy asked Shawn whether he had an important assignment for him and vowed to complete it at any cost.

Ch. 246A shelter?

Shawn recruited Percy to join the Pentagram after the school year and investigated an extensive underground shelter in the Forbidden Forest, which he suspected Helga Hufflepuff had built. He arranged for hot pot broth experiments at Hogwarts while Hermione asked him to support Harry, and February arrived as Quidditch was set to resume.

  • Shawn asked Percy to leave school after the current year and join the Pentagram to lead internal disciplinary investigations, and Percy agreed.
  • Shawn learned from Tina that the Forbidden Forest passages contained a vast underground shelter and suspected Helga Hufflepuff had built it.
  • Shawn told Cedric, Susan, and the other Hufflepuffs that Acromantula meat would be rationed and promised to make hot pot with the arriving ingredients.
  • Hermione brought Shawn labeled chili peppers from Cho Chang, and Shawn took them to the kitchens so the house-elves could test hot pot broth recipes.
  • Hermione asked Shawn to talk to Harry about his troubles with Sirius and Snape, but Shawn said Harry had to work through them himself and that people were searching for Sirius.
  • February arrived as the snow melted and Quidditch was about to resume.

Ch. 247Ancient Charms

Wood had the Gryffindor team practice against Shawn’s Slicing Shot, but the Beaters could not imitate it, so Harry suggested they focus on containing Slytherin’s Chasers and catching the Snitch quickly. Meanwhile, Shawn studied alchemy as Old Percy explained the origins of ancient runes, charms, and modern magical education.

  • Wood made George try to copy Shawn’s Slicing Shot, but the Bludger struck George and his bat hit Fred.
  • The Gryffindor players discussed how Shawn could hit Bludgers so hard, while Wood remained determined to prepare for Slytherin.
  • Harry advised the team to train to contain Slytherin’s Chasers and rely on him to catch the Snitch quickly.
  • Shawn watched Old Percy teach alchemy through the Two-Way Mirror while conducting experiments in the Room of Requirement.
  • Old Percy explained how magical runes developed, how ancient wizards cast charms, and how the Hogwarts Founders helped establish modern magical education.

Ch. 248Animagus practice

Shawn practiced transforming parts of his body into an eagle talon and feathered wings, gradually learning to fly before stopping for the night. He left the Room of Requirement still pondering Wormtail and the Marauder’s Map, then turned toward the forbidden area on the Fourth Floor.

  • Shawn told old Percy that he could not provide more alchemy knowledge until he understood the material he had already copied and the next restriction was unlocked.
  • Shawn transformed his right hand into an eagle talon, tried to add electrical arcs, and burned himself before restoring his hand and applying ointment.
  • Shawn grew a pair of white wings and, after tying his hands against his body, practiced until he could fly at low altitude.
  • Shawn found Wormtail begging to be released but told him to wait a few days, then locked the rat back in the cabinet.
  • Shawn considered how to obtain the Marauder’s Map from the Twins, left under a Disillusionment Charm, and turned toward the forbidden area on the Fourth Floor.

Ch. 249The Twins Took a Gamble

Shawn decided not to enter the room containing the Philosopher's Stone, though he believed studying it could help with his research into souls and breaking Wenge's blood curse. At the packed Quidditch match, George and Fred accepted a huge wager against Shawn making thirty interceptions, and the Slytherin-Hufflepuff game began under Luna's eccentric commentary.

  • Shawn left the corridor without entering the room holding the Philosopher's Stone, and Snape watched him depart from the shadows.
  • Thousands of fans crowded into Hogwarts to watch Shawn's second official Quidditch match, while Draco questioned Harry about his sudden excitement.
  • George and Fred accepted a five-hundred-Galleon bet that Shawn would make exactly thirty interceptions, signing a magical contract with a handsome middle-aged wizard.
  • Luna took over commentary as McGonagall worried about her rambling and the England National Quidditch Team coach watched from the stands.
  • Madam Hooch started the match, and the Slytherin and Hufflepuff players raced onto the pitch.

Ch. 250Luna's Commentary

Slytherin dominated its Quidditch match against Hufflepuff while Luna’s eccentric commentary entertained the spectators. Shawn finally showed off for the national team coach by batting a Bludger into a Quaffle and sending it through Hufflepuff’s goal, leaving both teams startled.

  • Shawn and Cedric greeted each other before Madam Hooch started the match, while Luna amused the crowd with her commentary.
  • Slytherin scored twice, and Hufflepuff switched to a defensive formation, relying on Cedric to catch the Golden Snitch.
  • Shawn noticed the twins had made a reckless bet and saw Cedric searching for the Snitch while Draco obstructed him.
  • Madam Hooch urged Shawn to demonstrate his abilities for the national team coach, so he struck a Bludger toward Hufflepuff’s goal.
  • Shawn’s Bludger smashed a Quaffle back through the hoop, making the Hufflepuffs shudder and leaving the twins worried.
Arc 10 of 22