Chapter Summaries

After Dumbledore escaped and Fudge appointed Umbridge Headmistress, Su Er reassured Hermione that Umbridge could not access the Headmaster’s Office and reminded her that Fred and George had plans to open a joke shop. A sudden explosion shook the Room of Requirement, leaving its cause unknown.

• A blast from the direction of the Headmaster’s Office startled the Gryffindor Common Room, and Harry later revealed that Marietta from Ravenclaw was the traitor.
• Hermione brought Su Er to the Room of Requirement and showed him Fudge’s decree appointing Dolores Jane Umbridge Headmistress.
• Su Er told Hermione that Umbridge could not enter the sealed Headmaster’s Office and would not hold the position for long.
• Hermione told Su Er that Fred and George planned to leave school after putting Montague into the Vanishing Cabinet, and Su Er reminded her of their Weasley Trick Workshop contract.
• The ground shook beneath Hermione and Su Er as another explosion sounded.

Su Er and Hermione watched the Weasley twins’ enchanted fireworks turn Umbridge’s first day as headmistress into chaos. During Easter, Harry planned to use Umbridge’s office fireplace to contact Sirius, while Fred and George prepared a second prank that left the story poised for its five o’clock start.

• Su Er showed Hermione the fireworks, which filled the Castle with sparks and delighted the students while leaving Umbridge soot-covered and disheveled.
• Fred and George became Gryffindor’s heroes, and Hermione made revision timetables for herself and Harry as the Easter holidays began.
• Harry told Hermione he no longer needed to practice Occlumency with Snape, though Su Er recognized that Harry was lying.
• Harry, Ron, and Ginny planned to use Umbridge’s fireplace to contact Sirius, while Fred and George arranged to distract Umbridge.
• Fred and George covered a corridor with swamp, Dungbombs, and stinkweed liquid, and enlisted Peeves to lure Umbridge there for their second prank.

Fred and George escaped Hogwarts by broom after humiliating Umbridge and announcing their new shop in Diagon Alley. Their departure sparked days of student resistance, while Peeves relentlessly tormented Umbridge and the conflict continued.

• Umbridge and her Inquisitorial Squad chased Fred and George through the Castle after the brothers knocked her back into the swamp.
• Fred and George summoned their brooms, announced they were leaving school, and flew out of the Entrance Hall after firing fireworks at the Squad.
• The brothers advertised their shop at 93 Diagon Alley and left Peeves to continue their campaign against Umbridge.
• Students celebrated the brothers’ escape, while Umbridge failed to clear the swamp and had to ferry students across it.
• Peeves used the brothers’ leftover pranks to harass Umbridge, and the students and teachers helped him evade Ministry officials.
• Umbridge’s escalating feud with Peeves continued as he flooded her bathroom and dumped tarantulas on her breakfast.

Harry told Hermione that Hagrid was hiding his giant half-brother, Grawp, in the Forbidden Forest and wanted them to visit and teach him. After Gryffindor won the Quidditch Cup, Hermione and Su Er met Grawp, who proved dangerous despite Hagrid's assurances that he was a good boy.

• Harry told Hermione that Hagrid had brought Grawp, his giant half-brother, to the Forbidden Forest and asked her and a friend to visit him.
• Hermione agreed to help Hagrid and planned to visit Grawp despite her upcoming O.W.L.s.
• Gryffindor beat Ravenclaw by ten points to win the Quidditch Cup, with Ginny catching the Golden Snitch and Ron celebrating the victory.
• Hermione and Su Er put on Harry's Invisibility Cloak and left the common room to visit Hagrid.
• Hagrid introduced Hermione and Su Er to Grawp, whose chained hand frightened Hermione.
• Grawp uprooted a pine tree, prompting Hagrid to suggest that they head back.

As the O.W.L.s began, Su Er wandered the Castle and found the long-sealed Headmaster’s Office open. Inside, he discovered the Sorting Hat, which told him to open a particular portrait.

• Hermione and the other fifth-years prepared for the O.W.L.s amid a thriving black market for dubious study aids.
• The O.W.L.s began, and Hermione felt confident after the Charms theory exam; students who had learned the Patronus Charm relaxed after Defence Against Dark Magic.
• During the Astronomy practical exam, Su Er left the noisy Gryffindor Common Room and passed the Headmaster’s Office as it opened.
• Su Er entered the wrecked office but found no sign of Dumbledore.
• The Sorting Hat revealed itself and instructed Su Er to open the last portrait in the second row on the left, beside an overturned chair.

Su Er tried to reach Hagrid before Umbridge’s group arrived, but found them already attacking him. He helped Professor McGonagall defeat the Ministry wizards, then she took Hagrid away and warned that more people were involved.

• Su Er hurried to Hagrid’s hut but arrived after Umbridge and five Ministry wizards had begun their arrest attempt.
• Hagrid resisted Umbridge’s accusations, shrugged off six Stunning Spells, and charged at the group.
• The wizards restrained Hagrid and injured Fang, prompting Hagrid to break free and throw one attacker aside.
• Su Er shielded Professor McGonagall from four Stunning Spells, then knocked down several wizards and Umbridge.
• Su Er told McGonagall that Dumbledore had sent him, and she took Hagrid away, warning that more people were involved in the assignment.

After Umbridge and her colleagues were stunned, Harry told Hermione, Ron, Ginny, and Su Er that he had seen Voldemort torturing Sirius in the Department of Mysteries and insisted they go rescue him. Hermione questioned the vision and urged Harry to seek help, then reminded him of another way to contact someone: the Patronus Charm.

• Professor McGonagall sent the Gryffindors to bed, and Hermione told Su Er that she had recognized him during the confrontation with Umbridge's group.
• Umbridge and several of her colleagues remained in the Hospital Wing, so they missed the final exam; Hermione told Su Er that Harry had fainted during it.
• Harry rushed into the common room and said he had seen Voldemort holding Sirius in the Department of Mysteries, near row ninety-seven of the Prophecy Orb shelves.
• Harry demanded that Ron and Hermione go to the Ministry, while Ginny overheard and asked what had happened to Sirius.
• Hermione challenged Harry's assumptions and urged him to calm down and contact Professor McGonagall or the Order of the Phoenix.
• When Harry said he could not find Professor McGonagall, Hermione reminded him of the Patronus Charm.

Harry sent his Patronus to check on Sirius and learned from Kreacher that Sirius had been away from Grimmauld Place for several days and might be at the Department of Mysteries. Convinced Sirius had been captured by Voldemort, Harry decided to go to the Ministry of Magic to save him.

• Harry, Hermione, Ron, and Ginny went to the Defence Against Dark Magic group’s room to cast a Patronus, where they found Neville and Hannah together.
• Harry sent his stag Patronus to 12 Grimmauld Place to ask about Sirius, while Hermione explained the danger to Hannah and Neville.
• Kreacher arrived and told Harry that Sirius had been away for several days, but he could not speak about the Department of Mysteries because of his Order of the Phoenix contract.
• Harry took Kreacher’s silence as confirmation that Voldemort had captured Sirius and announced that he was going to the Ministry of Magic.

Su Er contacted Dumbledore through the Sorting Hat and learned that Harry’s vision was a trap, with Sirius safely beside Dumbledore. Su Er and Hermione planned to turn the trap against Voldemort, while Ginny discovered that someone invisible was beside Hermione.

• Hermione tried to persuade Harry to contact the Order of the Phoenix before going to the Ministry, but Harry refused to trust Snape.
• Su Er went to the Headmaster’s Office and used the Sorting Hat to contact Dumbledore.
• Su Er returned under the Disillusionment Charm and told Hermione that Harry was being lured into a trap and Sirius was with Dumbledore.
• Su Er relayed Dumbledore’s plan to use the trap against Voldemort, and Hermione prepared to explain it to Harry.
• Ginny noticed Hermione acting strangely, approached her, and felt the invisible Su Er beside her.

Harry saw through his scar that Sirius was being tortured in the Department of Mysteries and urged the others to rescue him. Hermione organized a covert trip to the Ministry through Umbridge’s office, while Ron was assigned to alert Snape.

• Ginny spotted the unseen Su Er beside Hermione but quietly backed away without alerting anyone.
• Harry’s scar hurt, and he saw Voldemort and a woman torturing Sirius near a mysterious shelf.
• Hermione warned that the vision could be a trap but agreed to help Harry reach the Ministry with Ginny, Neville, and Hannah.
• Neville and Hannah offered to use Disillusionment Charms, while Hermione chose Umbridge’s fireplace and the remaining Polyjuice Potion as part of their plan.
• Hermione sent Ginny to get Umbridge’s hair, Harry to fetch his Invisibility Cloak, and Neville and Hannah to check for spells around Umbridge’s office.
• Hermione assigned Ron to notify Snape, and the group set off for Umbridge’s office.

Su Er warned Snape that Voldemort had set a trap for Harry and that Dumbledore was preparing to intervene. Harry and his companions then reached the deserted Ministry of Magic, where they began searching for Sirius.

• Ron told Snape that Harry had seen Voldemort through his eyes, while Su Er listened under a Disillusionment Charm.
• After Ron left, Su Er revealed himself to Snape and explained that Voldemort's trap was known to Dumbledore and Harry would be all right.
• Harry found Umbridge's office wrecked, with Malfoy and two other Slytherin students unconscious after Ron stunned Malfoy and one of the students knocked himself out with an Exploding Charm.
• Hermione drank Polyjuice Potion made with Umbridge's hair, transforming into Umbridge, and the group prepared to leave.
• Hermione led Harry, Ron, Ginny, Neville, Hannah, and herself to the Ministry of Magic, where they found the Entrance Hall deserted and unusually dark.

Harry led the group into the Department of Mysteries while Hermione and Su Er stayed outside to keep watch. After Lucius Malfoy and a group of Death Eaters entered, Su Er and Hermione warned Harry, and they waited for Dumbledore and the others to arrive.

• Harry led his companions to the black door, and Hermione stayed behind with Su Er to watch the corridor.
• Su Er sent a Patronus ahead and concealed himself and Hermione when Lucius Malfoy arrived with Dolohov, Bellatrix, and masked Death Eaters.
• Su Er restrained himself from attacking Dolohov and asked Hermione to warn Harry that the Death Eaters had entered.
• Hermione told Su Er that Ginny had mistaken him for Aibo and believed Hermione was dating him.
• Su Er and Hermione heard approaching footsteps and expected Professor Dumbledore and the others.

Su Er joined Kingsley, Moody, Sirius, Hermione, and the others as they prepared to enter the black door and search for Harry. Before the group faced the chamber’s twelve doors, Moody gave Su Er a new identity: Aibo Nokhan.

• Kingsley arrived with the Order, and Su Er explained that Hermione had used Polyjuice Potion to disguise herself as Umbridge.
• Moody gave Hermione a potion to restore her appearance and told the group that Dumbledore was upstairs.
• Moody gave Su Er a badge that transformed him into Aibo Nokhan, an Icelandic wizard whose identity Dumbledore had arranged for him.
• Moody warned that Lucius had likely left guards at the black door, and Sirius rushed inside when the group opened it.
• Moody, Sirius, and Kingsley subdued the Death Eater guarding the entrance, and the group entered the chamber.
• The chamber’s walls spun, revealing twelve doors, and Moody ordered everyone to hide under Disillusionment Charms and prepare to fight.

Moody positioned the Order of the Phoenix to ambush the Death Eaters, while Su Er and Hermione waited to get Harry and Ginny to safety. Harry emerged from a chase with Ginny, and Bellatrix and the Death Eaters followed; Moody launched the ambush as the chapter ended.

• Moody ordered the Order to hide by the doors and told Su Er to escort Harry and Ginny to Dumbledore if they appeared.
• Harry burst into the circular room supporting an injured Ginny, and Su Er, Hermione, and Sirius came out to meet them.
• Harry questioned whether Sirius was really himself, but Su Er assured him that Sirius was safe and that Voldemort had set a trap.
• Bellatrix blasted open the door and entered with masked Death Eaters, arguing with Lucius about attacking Harry.
• Moody shouted, “Strike!” and the Order launched its ambush.

The Order of the Phoenix attacked the Death Eaters, and Su Er tried to escape with Harry and Hermione while Sirius fought Bellatrix. When a barrier sealed their exit, Su Er faced Antonin Dolohov and struck him with a nonverbal Sectumsempra.

• Moody’s signal began the Order’s ambush, scattering the Death Eaters as Bellatrix searched for Harry.
• Su Er dragged Harry toward the doors, but Bellatrix summoned the Prophecy Orb and Sirius intercepted it before Harry caught it and put it away.
• Sirius confronted Bellatrix and told Su Er to take the fourth door while the Order fought the Death Eaters.
• Su Er, Harry, and Hermione reached the fourth door, but a Killing Curse forced Su Er to shield them and a magical barrier sealed the exit.
• Antonin Dolohov attacked Su Er with the Killing Curse, but Su Er deflected it and cut Dolohov’s face with a nonverbal Sectumsempra.

Su Er knocked Sirius out of the path of Bellatrix’s Killing Curse with Flipendo, saving his life, then broke the barrier protecting the black door. He led Harry, Hermione, and Ginny into the dark corridor while Bellatrix was kept busy by Order members.

• Su Er defeated Dolohov with a succession of spells, leaving his fate uncertain.
• Bellatrix tried to reach Su Er and the others, but Sirius blocked her and taunted her.
• Bellatrix used a Killing Curse against Sirius, and Su Er struck him with Flipendo to move him out of its path.
• Bellatrix searched for the person who had interfered, but Order members attacked her.
• Su Er dispelled the barrier, then took Harry into the corridor as Hermione and Ginny followed.

Su Er and Harry escaped the Death Eaters in the lift, but Voldemort confronted them in the Ministry atrium and demanded Harry. Dumbledore arrived to protect them, leaving the chapter with Su Er guiding Harry and the others toward safety as Dumbledore faced Voldemort.

• Su Er sealed the lift and carried Harry and the others up to the Ministry atrium while the Death Eaters pursued them.
• Voldemort confronted the group and ordered Harry to hand over what he carried in his pocket.
• Su Er resisted Voldemort's attempt to control him and defended Harry, but recognized that Voldemort was stronger.
• Voldemort's Killing Curse struck a fireplace after a spell from Dumbledore redirected it, revealing that Dumbledore had arrived.
• Dumbledore told Su Er and the others to leave, and Su Er led Harry and the others toward the fireplace while Dumbledore held Voldemort back.

Voldemort attacked Dumbledore and Su Er’s group at the Ministry of Magic, then possessed Harry and escaped with the Prophecy Orb. Fudge was forced to confront Voldemort’s return, while Dumbledore asked Su Er to take Harry to Hogwarts for treatment.

• Dumbledore shielded Su Er, Hermione, Harry, and Ginny from Voldemort’s attacks as they tried to escape through a fireplace.
• Voldemort possessed Harry and made him attack Bellatrix, while Harry struggled to resist and protect the Prophecy Orb.
• The Prophecy Orb rolled outside the shield and Voldemort took it in a cloud of black mist as he and his surviving followers escaped.
• Fudge arrived at the devastated Ministry, where witnesses confirmed that Voldemort had been there and Dumbledore urged him to investigate the Department of Mysteries.
• Dumbledore told Fudge that Voldemort had returned and that the Ministry had pursued the wrong people, then asked Su Er to take Harry to Hogwarts and Poppy.

Su Er returned to Hogwarts with Harry and learned that Dumbledore had allowed Voldemort to take the Prophecy Orb as bait. Dumbledore explained that the prophecy had already become reality, leaving Voldemort convinced that destroying the orb could defeat it.

• Su Er and Harry arrived at Hogwarts, where Hermione and Professor McGonagall met them.
• Su Er repaired the silver instruments in the Headmaster's Office while the portrait headmasters discussed the Ministry battle.
• Dumbledore returned through the fireplace, greeted by applause, and placed the frail Fawkes on his perch.
• Dumbledore told Su Er that Fawkes had supported him against Voldemort and that he could not use too much power for certain reasons.
• Dumbledore explained that the Prophecy Orb only preserved Trelawney's prophecy, which had already become reality after Voldemort acted on it.
• Su Er realized that Dumbledore had let Voldemort take the orb so he would mistake destroying it for destroying the prophecy.

After the Ministry battle, Dumbledore returned to Hogwarts, Umbridge was taken away, and Ron recovered from the brain’s effects. As summer began, Harry went home without Sirius, while Hermione kept Su Er’s identity secret until her father saw him transform in the car.

• The Daily Prophet reported Voldemort’s return, Dumbledore’s reinstatement as headmaster, Umbridge’s removal, and Ron’s temporary regression to infancy.
• Fudge tried to salvage his political standing as Hogwarts settled into a peaceful end to the school year.
• Sirius wrote Harry a letter thanking his unknown rescuer and asking Harry to find out who had saved him.
• Harry asked how to contact Mr. Aibo, and Hermione promised to write to him while keeping Su Er’s identity secret.
• The Hogwarts Express reached King’s Cross, where Hermione’s father watched Su Er transform from a badger into a person in her arms.