Chapter Summaries

After returning from Diagon Alley, Su Er realized the black dog they had seen might have been Sirius Black watching Harry. The next day, Su Er and Hermione set out for the Leaky Cauldron by Floo, watched by their curious mothers.

• Su Er cleaned soot from Hermione's hair, then recognized that the black dog in Diagon Alley might have been Sirius Black looking at Harry.
• Hermione's parents teased her about going on a date with Su Er, and she fled upstairs in embarrassment without eating dinner.
• Su Er showed the Ellisons the Wizard's Chess set, and Angel argued with its insulting pieces while Mr. Ellison laughed.
• On the twenty-ninth, Su Er and Hermione prepared to travel to the Leaky Cauldron, with Mrs. Ellison and Mrs. Granger coming to watch.
• Mrs. Granger tried to touch the Floo flames, which moved away from her, and Su Er concluded that Muggles could not use Floo travel.
• Su Er stepped into the green flames and vanished as the two mothers watched in amazement.

Su Er and Hermione waited at the Leaky Cauldron for Harry, who returned with Ron and his sick rat, Scabbers. Crookshanks attacked Scabbers and destroyed Ron’s medicine, leaving Ron upset and Hermione offering to replace it.

• Su Er and Hermione checked into two rooms at the Leaky Cauldron and waited for Harry.
• Harry arrived with Ron, who explained that Scabbers had been ill since returning from Egypt.
• Ron tried to give Scabbers Rat Tonic, but Crookshanks broke free and chased the rat.
• Scabbers escaped Ron’s grip, and Crookshanks knocked the medicine bottle to the floor and shattered it.
• Su Er caught Crookshanks and returned him to Hermione, while Ron rescued Scabbers and complained about the cat.
• Hermione offered to buy Ron another bottle of Rat Tonic and defended Crookshanks’s instinct to catch mice.

Su Er and the others prepared to leave the Leaky Cauldron for King's Cross, while Fred and George revealed they had stolen Percy's badge as a prank. The group set off in two cars, and Su Er was interrupted before he could explain his idea for helping Scabbers.

• Su Er heard Fred and George making a show of greeting him before Mrs. Weasley hurried everyone to get ready for the station.
• Harry told Su Er that Percy had accused Ron of stealing his missing badge, and Fred and George admitted they had taken it and planned to alter it before returning it.
• Su Er gave Ron Scabbers's medicine and began to mention an idea that might solve the rat's problem, but Mr. Weasley called everyone outside.
• Mr. Weasley led the group to two vintage cars, and they drove toward King's Cross with Hermione holding Crookshanks and Ron guarding Scabbers.

Su Er traveled to Hogwarts with the Weasleys and joined Neville, Hannah, and Hermione in a train compartment. He helped Neville invite Hannah to the Hogsmeade tea shop, then invited Hermione himself, and both girls accepted.

• Percy greeted Penelope at the platform while Mrs. Weasley handed out sandwiches to the children, including Su Er and Hermione.
• Mr. Weasley pulled Harry aside before the train left, and Harry boarded at the last moment with Ron's help.
• Su Er joined Neville, Hannah, and Hermione in a compartment after Harry, Ron, and Ginny continued searching for seats.
• Su Er teased Neville about secretly exchanging letters with Hannah over the summer, and Neville offered to share his food.
• Hannah described Hogsmeade and hinted that she hoped someone would invite her to Madam Puddifoot's Tea Shop, so Su Er told her Neville wanted to take her there; Hannah accepted.
• Su Er invited Hermione to tea during a Hogsmeade weekend, and Hermione accepted while trying to hide her blush.

Su Er confronted a Dementor that entered the train compartment and, driven by his resolve to protect Hermione and the others, successfully cast the Patronus Charm. His newborn Patronus drove the Dementor into a corner, where it began to dissolve.

• Su Er realized the train was slowing in the darkness and suspected Dementors were aboard.
• Ginny joined Su Er, Hermione, Hannah, and Neville as the train stopped and its lights went out.
• A Dementor entered the compartment, and Su Er's Exploding Charm failed to stop it from approaching.
• As Neville collapsed and the others weakened, Su Er held his ground and remembered Professor Flitwick's lesson about the Patronus Charm.
• Su Er cast Expecto Patronum and produced silvery-white light that forced the Dementor back.
• A silvery-white paw emerged from the light as Su Er's newborn Patronus drove the Dementor into a corner, where it began to melt away.

Su Er drove off the Dementors with his Patronus and killed one while protecting the students on the train. Remus Lupin praised his achievement before the train reached Hogsmeade Station.

• Su Er used his Patronus to repel the Dementors and killed one that threatened the compartment.
• Su Er gave Hermione, Ginny, Hannah, and Neville chocolate and explained that the silver badger was a Patronus.
• Remus Lupin entered the compartment to find out who had cast the Patronus Charm and learned that Su Er had killed the Dementor.
• Lupin praised Su Er, said the train would reach Hogwarts in ten minutes, and left.
• Harry and Ron stayed with the group until the train arrived at Hogsmeade Station.

Su Er arrived at Hogwarts after a Dementor attacked the students on the train, and Dementors blocked the school gates until Snape drove them away. Dumbledore and Professor McGonagall questioned Su Er about the attack and how he killed a Dementor, then planned to complain to Cornelius Fudge.

• Su Er rode to Hogwarts in a carriage pulled by Tenebrus, and Hermione asked why she could not see the Thestrals.
• Dementors blocked the Hogwarts gates, but Snape confronted them with his wand and made them back off.
• Professor McGonagall summoned Su Er and brought him to Dumbledore before the start-of-term ceremony.
• Dumbledore asked Su Er to describe the train attack and explain how he had killed a Dementor.
• Professor McGonagall condemned the Dementors for endangering the students, and Dumbledore agreed to write to Cornelius Fudge.

Su Er demonstrated his Patronus to Dumbledore and McGonagall, proving he had driven off the Dementor with the spell. At the Hogwarts feast, Dumbledore praised Su Er and awarded Hufflepuff one hundred points.

• Su Er summoned a faint silver-white badger Patronus, and Dumbledore praised his skill while McGonagall agreed he deserved a reward.
• McGonagall asked Su Er to tell Hermione and Harry to wait after dinner, and he passed the message to them before joining the Hufflepuff table.
• Justin told Su Er that Longbottom had reported the Dementor incident, while Morn denied fainting when the Dementor passed their compartment.
• McGonagall brought the first-years into the Great Hall, and the Sorting Ceremony placed Vogt May in Gryffindor.
• Dumbledore warned students not to approach the Dementors, introduced Lupin and the new Magizoology teachers, then awarded Su Er a Special Award for Services to the School and one hundred points for Hufflepuff.

After dinner, Su Er dreamed that he was trapped in a blank white space, but his attempts to summon a system or wand failed, and he woke to Justin and Morn repeating his dream’s embarrassing incantations. He later began Ancient Runes with Professor Babbling and noticed Hermione wearing a chain that suggested she was using a Time-Turner to attend her packed schedule.

• Su Er fell asleep after dinner and found himself in an endless white space, where he tried and failed to summon a system or wand.
• Justin and Morn woke Su Er after hearing him shout lines from his dream, leaving him mortified.
• Su Er did not revisit the white space and eventually dismissed the experience as a dream.
• Professor Babbling introduced Ancient Runes and taught the class about the runes for defense and cooperation.
• Su Er noticed Hermione’s chain and realized it was likely connected to her attending several classes at once.

Su Er visited Hagrid before his first Care of Magical Creatures lesson and persuaded him to reveal the creatures he had prepared. Hagrid summoned a group of Hippogriffs, leaving Su Er to realize his summer letter had failed to change Hagrid’s plans.

• Su Er noticed Hermione’s exhausting schedule and chose not to interrupt her breakfast to persuade her to drop classes.
• Su Er remembered that Hagrid’s first Care of Magical Creatures lesson was the following morning and went to visit him.
• Hagrid told Su Er he had prepared fascinating creatures for the lesson and agreed to show them to him after Su Er promised to keep them secret.
• Hagrid took a bucket of meat into a clearing in the woods and blew a whistle to summon the creatures.
• Hagrid summoned Hippogriffs, and Su Er realized his letter to Hagrid over the summer had not had the effect he hoped for.

Su Er rehearsed Hagrid’s lesson on approaching and riding Hippogriffs, earning the approval of Sanbick and taking a short flight. He warned Hagrid about the danger to students, but the lesson was still scheduled for the next day, with Hagrid agreeing to take precautions.

• Hagrid taught Su Er how to approach a Hippogriff, and Su Er chose Sanbick after Shivana struck another Hippogriff.
• Sanbick returned Su Er’s bow, accepted a pat on the beak, and carried him on a short flight.
• Su Er fed Sanbick and asked Hagrid whether Hippogriffs were safe enough for students.
• Hagrid considered switching to a less threatening Fantastic Beast but said he could not prepare another one before the next day.
• Su Er urged Hagrid to prevent the Hippogriffs from injuring students, especially by covering their claws, and Hagrid agreed to take precautions.

Su Er worried that Malfoy would cause trouble the next day and found a way to prepare for a possible accident. He gave Hermione advice about Divination and showed her how to use a Remembrall, intending it as a gift for Hagrid.

• Su Er found Justin and Morn watching recorded television programs in a Remembrall, then borrowed three unused ones from Justin.
• Su Er erased the Remembralls and planned to record what happened during Hagrid’s lesson so he could prevent an accident.
• Su Er found Hermione struggling with Divination homework in the Library and told her to invent dramatic prophecies based on the professor’s predictions.
• Su Er showed Hermione how to use a Remembrall and said Hagrid would be delighted to receive it.

Hagrid led Su Er and the students through their first Care of Magical Creatures lesson, using Su Er’s method for calming The Monster Book of Monsters and explaining how wizards should approach fantastic beasts. He prepared to bring out a mysterious creature for the class to meet.

• Hagrid gathered the students by a hunting enclosure near the Forbidden Forest and introduced the lesson.
• Hagrid asked Su Er to demonstrate how to quiet The Monster Book of Monsters, and Su Er calmed a borrowed copy by stroking its spine.
• The students tried Su Er’s method, and Hagrid joked that anyone facing a dragon should run unless they wanted to become dragon dung.
• Hagrid explained fantastic beasts and their care, earning the students’ applause despite his nervousness.
• Hagrid told the students to wait while he went to bring out the creatures they would meet.

Su Er’s successful morning Care of Magical Creatures lesson was followed by a harsh confrontation with Snape and rumors of an afternoon accident involving Malfoy and Hagrid’s Hippogriff. Su Er found Hagrid drinking in despair at his hut, where Hermione began explaining what had happened.

• Su Er taught the students to approach and ride the Hippogriffs, then hid an object in a tree and a Remembrall in the bushes while setting up observation points with Hermione.
• Snape kept Su Er after Potions class, mocked his encounter with a Dementor, and violently duelled him before making him prepare ingredients and deducting five points.
• Su Er overheard Slytherin students discussing Malfoy’s injury and rumors that Hagrid might be dismissed, then went to Hagrid’s Hut to learn what had happened.
• Hermione, Harry, and Ron assured the dejected, drunken Hagrid that Malfoy had caused his own injury, and Hermione began telling Su Er the details.

After Malfoy was injured by Buckbeak, Su Er and the others found a Remembrall recording that could help Hagrid defend himself, though it did not capture Malfoy provoking the Hippogriff. Hagrid took the recording to show Dumbledore and escorted Harry back to the Castle, where Su Er spotted a dark shape near the Whomping Willow.

• Hermione and Harry explained that Malfoy had slapped Buckbeak and pulled out his feathers, prompting the Hippogriff to kick him.
• Su Er, Harry, and Ron reassured Hagrid and told him that evidence could clear his name.
• Hermione found the Remembrall, which Su Er explained had recorded Hagrid's lesson for him.
• Su Er and Hermione checked the recording and discovered it did not show Malfoy provoking Buckbeak, but Hagrid decided it could still help him.
• Hagrid suddenly noticed Harry and escorted him back to the Castle after warning him not to go out after dark.
• Su Er sensed something and saw a dark shape flash near the Whomping Willow.

Harry and his friends speculated about why Sirius Black wanted to kill him, while Su Er kept the truth to himself and considered secretly intervening. The next day, Professor Lupin began teaching the class how to face Boggarts and introduced the Riddikulus spell.

• Harry told Su Er, Hermione, and Ron that Black was hunting him and asked why he had escaped Azkaban.
• Ron guessed that Black wanted revenge because Harry had defeated You-Know-Who, and Hermione connected his escape to the Dementors at Hogwarts.
• Su Er decided not to correct their mistaken theories and considered letting Harry learn more while planning a lesson for Peter Pettigrew.
• Professor Lupin explained that Boggarts transformed into what people feared and that facing them in a group confused them.
• Lupin taught the class to use laughter against Boggarts and led the students in practising Riddikulus.

In Defense Against the Dark Arts, Su Er faced a Boggart that became a figure from his past, then changed it into his sister Angel’s laughing toy. The lesson ended with Lupin praising the class and assigning brief reading and writing homework, while Su Er realized he feared returning to his lonely former life.

• Justin used Riddikulus to turn the Boggart into a dancing comedian, and Lupin praised his spell.
• Su Er blocked the Boggart’s attempt to enter his mind with Occlumency before letting its magic through.
• The Boggart became Su Er’s past self, and he turned it into the laughing toy Angel had played with as a child.
• A Ravenclaw witch and the other students defeated the Boggart with Riddikulus, sending it back into the wardrobe.
• Lupin awarded fifteen points each to Hufflepuff and Ravenclaw and assigned homework about Boggarts.

Dumbledore asked Lupin to watch over Harry as Sirius Black headed toward Hogwarts, while Su Er prepared Hermione to brew a potion during the approaching full moon. After Hagrid returned from the Ministry with a warning, Su Er visited him and suggested Buckbeak’s situation might not be hopeless.

• Dumbledore learned from Lupin that Sirius Black was coming to Hogwarts and asked Lupin to help protect Harry.
• Su Er arranged a concealed place near Hagrid’s class site for Hermione to brew her potion on the night of the full moon.
• Hagrid returned from the Ministry with only a warning, but hinted that Buckbeak might still be in danger.
• Su Er visited a dejected Hagrid and told him that Buckbeak’s situation might not be that bad.

Hagrid brought the Remembralls to Dumbledore, hoping to save Buckbeak, while Su Er discussed brewing a potion with Hermione. Later, Professor Lupin taught the students about the dangerous Red Cap.

• Hagrid took the Remembralls to Dumbledore after Lucius Malfoy left the Headmaster's Office, and he returned to the Great Hall in good spirits.
• Su Er and Hermione discussed brewing a potion to ease the pain of Animagus Transformation, and Su Er considered taking Tree Monkey Frog horns from Snape's supplies as reasonable compensation.
• Snape ruined a potion after sneezing and threw the potion and cauldron into the waste bin.
• Professor Lupin showed the class a Red Cap and warned that its bloodthirsty claws made it dangerous despite its three-star rating.

Su Er stole potion ingredients from Snape’s shelves and began preparing an Animagus potion with Hermione. As the school year continued, Lupin taught about kappas and Snape’s harsh treatment of Gryffindor left the house trailing in the points race.

• Snape discovered a cross-dressing Snape figurine in Harry’s satchel, deducted fifty points from Gryffindor, and tried to find its makers.
• While Snape was away delivering Wolfsbane Potion to Lupin, Su Er took rare potion ingredients from Snape’s shelves.
• Su Er showed Hermione the stolen ingredients, and they began the first steps toward making an Animagus potion.
• Hermione collected her saliva for the potion after Su Er left the Room of Requirement, unaware that he had hidden a Remembrall among the ingredients.
• Lupin taught the third Defence Against the Dark Arts lesson about kappas, while Snape continued deducting points from Gryffindor, especially targeting Neville.