Su Er

Biodata

Background / History

Transmigration and adoption

Su Er remembers being struck by a reversing delivery truck while heading to work in his previous life. After arriving in another world, he immediately encounters a green flash later identified as Avada Kedavra. He awakens in the white Blurry Illusion Realm, where he meets Ariana, before returning to the living world as an infant 1 4.

Suli finds and adopts him, preserving the name written inside his swaddling clothes. He grows up as Su Er Ellison in a loving household; five years after his adoption, the Ellisons have a daughter, Angel. Su Er regards his adoptive parents as his own parents and considers them and Angel worth protecting with his life 1 4.

Helga Hufflepuff later identifies him as an outsider and addresses him by his previous-life name, Su Yao. She explicitly denies arranging the truck accident and chooses to continue calling him Su Er because he has become inseparable from his new world 388 389.

Childhood with Hermione

Su Er befriends his next-door neighbor, Hermione Granger, after intervening when other children surround and tease her in first grade. Although he often sleeps through lessons and borrows her homework, he consistently ranks near the top of his class, sometimes outperforming her 2.

Before their departure for Hogwarts, he protects Hermione and Angel during a python escape at the zoo. He gets both girls through the panicking crowd and out of the reptile house, sustaining bruises that a doctor confirms are not serious 3.

Their friendship eventually becomes a romantic relationship. By their third year, the narration explicitly describes Su Er as Hermione’s boyfriend; their relationship is subsequently acknowledged openly by Su Er and known among their schoolmates 300 399 402 438.

The Bones name

His Hogwarts letter reveals the surname Bones, confirming his suspicions that he has entered the world of the Harry Potter films he watched in his previous life. Dumbledore subsequently tells him that his biological parents are dead and gives him a key to their legacy 4 5.

Su Er initially resists replacing “Ellison” with “Bones.” Mr. Ellison explains that they always knew his birth surname and had unsuccessfully searched for his family. He encourages Su Er to acknowledge his birth parents without abandoning the family that raised him, proposing the full name Su Er Bones Ellison 8 10.

Amelia Bones later introduces herself as his paternal aunt. She explains that his parents died bravely at the hollow and that a trusted family member brought their infant son to safety. After initially fearing that she intends to take him away, Su Er agrees to accompany her to the hollow on Christmas, provided he returns home before dinner 47 48.

Amelia takes him to Godric’s Hollow, where he visits his biological parents’ gravestone. Despite having no personal memories of them, he experiences powerful grief that seems to rise from his body rather than his conscious recollections. Amelia then offers to show him their former home 51.

In Gringotts Vault No. 777, Su Er finds three chests of Galleons, a damaged family photograph, and a notebook conveying his mother’s love for him. He repairs the photograph and is moved to tears while reading the notebook 80.

Lupin later recalls that Su Er’s father was an exceptional potion-maker, while his mother was a prized pupil of both McGonagall and Flitwick. He believes Su Er inherited his mother’s talent for charms and resembles her more closely; Moody similarly sees his mother in him but identifies his eyes with his father 215 512.

Foreknowledge and the pursuit of strength

Dumbledore interprets Su Er’s knowledge of future events as the gift of a seer. Su Er privately attributes it to transmigration rather than genuine prophecy, although he recognizes that his interventions are making the remembered storyline less dependable. Dumbledore warns him that people may try to extract such knowledge through magical intrusion into his mind 137.

When Su Er worries about whether intervening in the future will worsen events, Mr. Ellison recounts how repeated failures strengthened his own business judgment. Su Er concludes that developing sufficient personal strength is more reliable than depending entirely on knowing what will happen 163.

His later development combines Snape’s combat and mental-defense training, Flitwick’s spellcasting instruction, the power of a Philosopher’s Stone, and Helga Hufflepuff’s legacy 153 169 242 257 392.

Appearance

Su Er grows from a small, thin infant into a handsome, rosy-cheeked boy. His hair is slightly curly, and both McGonagall and Ollivander recognize his resemblance to his biological parents 1 5 8 44.

• Slightly curly hair, ruffled by Mrs. Ellison when he returns home 44.
• Right-handed wand use 8.
• Hufflepuff clothing, including a hand-knitted house sweater from the Ellisons 49.
• Family resemblance: Lupin and Moody consider him more like his mother, while Moody notes that his eyes resemble his father’s 215 512.
• Animagus appearance: A small badger, capable of riding on Hermione’s shoulders and passing as her pet 139 537 538.

Personality

Su Er combines an adult’s memories with a child’s place in his new family. He is notably protective: he defends Hermione from bullying, shields her and Angel during the zoo emergency, and becomes furious when Malfoy insults Hermione’s ancestry. His birthday wish is for the people he cherishes to remain healthy, safe, and happy 2 3 4 13.

He is playful, comfort-loving, and frequently mischievous. He teases Hermione, bargains for help with homework, and uses magic to copy her assignments despite promising not to touch them. His preference for a comfortable common room, good food, and relaxed reading helps the Sorting Hat settle on Hufflepuff 3 15 32.

His apparent laziness does not prevent sustained effort when a goal matters to him. Angel’s promised unicorn drives him to study advanced Transfiguration, while Christmas presents lead him to research magical materials, learn household charms, and organize a business partnership 25 27 35 39 40.

Su Er is also pragmatic about danger and rules. He avoids looking Quirrell in the eyes because he fears Voldemort’s Legilimency, declines to investigate a mysterious figure in the Room of Requirement, and privately treats undetected rule-breaking as acceptable. When events depart from his remembered plot, however, he becomes anxious about losing his foreknowledge 26 37 42 43.

Snape’s training teaches him to value decisive casting, mobility, and an appropriate spell over impressive-looking attacks. He comes to recognize that real combat is not a regulated exhibition and that an enemy cannot be expected to fight fairly 148 153 169.

His attachment to the Ellisons remains central to his identity. He explicitly contrasts the love he received from his adoptive family with Tom Riddle’s upbringing, regarding this difference as fundamental despite their superficially similar childhood circumstances 161.

In romance, he is teasing, persistent, and devoted to Hermione. He helps with her homework when she is exhausted, can imitate her handwriting easily, and openly corrects an introduction of him as her friend to “Boyfriend!” His internal narration emphasizes that she is the only girl he loves, although he also displays jealousy toward Krum 283 291 300 399 402.

He develops an ambition to remain at Hogwarts as a professor, become a Head of House, and eventually become headmaster. When Dumbledore offers him a possible teaching future, he welcomes the idea 266 587.

Abilities & Skills

Transfiguration

Transfiguration is Su Er’s strongest documented early area. McGonagall considers him promising, and Dumbledore judges his talent greater than that of his parents 27 28.

• Early aptitude: In his first lesson, he turns a matchstick silver—the best result among the participating Hufflepuffs and Ravenclaws—and earns fifteen house points. He has not yet completed the match-to-needle transformation 19.
• Switching Spell: Studies the spell with Hermione under McGonagall’s guidance, despite it normally belonging to the fourth-year curriculum or later 25 27.
• Layered Transfiguration: Receives direct instruction from Dumbledore while developing Angel’s unicorn gift 27.
• Complete transformation: Amelia praises his use of Layered Transfiguration and the Switching Spell, noting that few first-years can perform a complete transformation 49.
• Concealment: Transfigures copied homework into a book to hide it from Hermione 32.
• Early duration limit: During his first Christmas holiday, a unicorn-like horse approximately Angel’s size lasts only about two days before its magic fails; larger creations demand more of his limited reserves 46.
• Early vitality limit: His unicorn creation cannot move. At that stage, even after working with Hermione and consulting McGonagall and Dumbledore, he has not learned how to give it vitality 49.
• Practical earth manipulation: Softens and turns over frozen ground to retrieve his completed Animagus potion 128.
• Combat applications: Attempts to turn a lawn into a net against Snape and later binds Sirius Black’s ankles with weeds during their duel 262 322.
• Temporary instability: His sudden increase in magic after receiving the Philosopher’s Stone’s power makes the steady output required for Transfiguration difficult; he explains that unstable transformations can explode. Snape’s subsequent treatments eventually allow him to control the increased power properly 244 322.

Charms

Su Er learns basic spells with relatively little practice, though he cannot explain why they come so easily. Flitwick rewards his early performance with fifteen points while warning against unsupervised practice by young wizards 10 21.

Bluebell Flames and crafting

Su Er and Hermione translate a runic spell from an old library book and discover that its blue flames can serve as portable hand warmers 32 33.

• Non-burning warmth: Su Er places his fingers in the flames without injury; direct contact breaks them apart 33 35.
• Long-lasting heat: The bottled flames can burn for an extended period, making them suitable for cold Hogwarts corridors 35.
• Unicorn-hair processing: Uses Snape’s hint about purple-leaf wood sorrel to develop a soaking method that softens otherwise stiff unicorn hair 39 42.
• Magical knitting: Must visualize the intended item clearly. More complicated patterns consume more magic, limiting him to relatively simple scarf designs 40.
• Finished gifts: Produces soft yellow-and-silver scarves in the Room of Requirement 42.

Potions

Su Er studies potion-making and takes an interest in recipes altered by Snape. His early potion earns one Hufflepuff point, although Snape identifies an insufficient cauldron temperature that has substantially reduced its effectiveness 21 22.

He later completes an Animagus Transformation Potion, retrieving the blood-red preparation from the ground before his first transformation. Lupin reports that Su Er’s biological father was a potion-maker capable of matching Snape, but Su Er himself describes Snape’s assessment of his own work as mediocre 128 215.

Foreknowledge and perception

• Previous-life memories: Recognizes Hogwarts and several students through the films he watched before transmigrating 4 12 13.
• Incomplete early recall: His memories have faded over more than a decade; he cannot initially remember how to access the Room of Requirement 27.
• Changing events: Quirrell’s apparently ordinary bald head alarms him because Voldemort should be visible on its back, demonstrating that his remembered plot is no longer dependable 43.
• Thestral sight: Can see the creatures pulling the Hogwarts carriages, though Hermione cannot 43.
• Blurry Illusion Realm access: Returns to Ariana’s realm while asleep at Hogwarts. The early visits are not shown to occur every night or under his conscious control 16 20.
• Seer interpretation: Dumbledore identifies his apparent foreknowledge as a prophetic gift, while Su Er privately understands it primarily as knowledge retained from his previous life 137.
• Restored memories: After receiving Hufflepuff’s legacy, his stronger soul allows him to recall previously hazy storylines whenever he wishes 429.
• Enhanced senses and reactions: The strengthening of his soul sharpens his five senses and reaction speed, enabling him to evade coordinated student attacks without casting 558.
• Magical perception: Uses a technique from Hufflepuff’s legacy to perceive people and enchantments as masses of differently colored magic with his eyes closed. In the Horcrux cave, this reveals a concealed magical doorway 529.

Animagus transformation

Su Er begins preparing to become an Animagus during his second year, seeking the detailed instructions and formulas unavailable in the ordinary library collection. He completes the potion and successfully transforms into a badger 84 128 129 139.

• Initial cost: His first transformation completely drains his magic, leaving him unable to cast even a cleaning spell and contributing to his vulnerability in the Forbidden Forest 129 130.
• Mobility and concealment: Uses the form to move through Hogwarts, visit Hermione, climb a Wiggentree, and hide from danger in the Forbidden Forest 139 155 206.
• Night vision: His Animagus form possesses innate night vision 529.
• Discovery by Hermione: Attempts to visit her without revealing his identity, but she recognizes the deception and eventually confronts him 139 144 149.
• Protective cover identity: After surviving the Killing Curse during the Triwizard Tournament, returns to Hogwarts as Hermione’s supposed pet while his wizard identity is publicly treated as dead 537 538 540.
• Infiltration: Uses the small form to slip past watchers around the Burrow along paths left by gnomes 650.

Combat and advanced spellcasting

Su Er’s advanced spell repertoire initially exceeds his practical fighting ability. Snape’s first serious lesson demolishes his confidence: Su Er cannot break his defenses, while Snape deflects or counters his attacks without spoken incantations. Repeated training steadily narrows that gap, and by the period before his third year he can exchange several blows with Snape, though defeat remains inevitable 148 155 169.

Flitwick supplements this training with techniques for changing a spell’s trajectory and concealing one spell beneath another. Su Er subsequently applies both teachers’ lessons in duels against Snape, Sirius, and the Weasley twins 257 262 322 523.

• Nonverbal casting: Learns to cast several familiar spells without speaking and later uses silent Shield Charms and Disarming Charms in practical demonstrations 392 523 560 632.
• Wandless casting: After Hufflepuff’s soul-strengthening gift, demonstrates nonverbal, wandless levitation to Hermione 392 393.
• Dual Casting: Conceals a second spell beneath an overt attack; one application cuts a lock of Snape’s hair, while another hides a Fire-Making Spell beneath a Severing Charm against Sirius 262 322.
• Spell Recall: Leaves a thread of magic attached to a spell so that he can pull it back toward an unsuspecting opponent 322.
• Spell splitting: Divides one Disarming Charm into independently directed attacks, first against both twins and later against approximately a dozen wand-bearing students 523 560.
• Layering: Repeats compatible charms to amplify their effect, including Impervius before the lake task 462.
• Physical evasion: Avoids the spells of seven young wizards without raising his wand and subsequently brings down Fred and George without casting a spell 557 558.
• Sectumsempra: Learns the cutting curse from Snape; at the time of his first meeting with Lisi, he considers it the most powerful spell he knows 219.
• Killing Curse practice: Practices Avada Kedavra alongside the Shield Charm before the third Triwizard task as a contingency if Dumbledore’s arrangements fail. This passage establishes practice rather than a confirmed successful killing with the curse 473.
• Sword use: Kills Nagini with a goblin-forged sword during the final battle 661.

Occlumency

After Dumbledore warns him about magical attempts to read a seer’s thoughts, Su Er studies advanced mental-defense books. Unlike the Animagus transformation and Patronus Charm, which he learns through exceptional aptitude, Occlumency requires extensive theoretical reading, including material concerning the soul 137 139.

Snape subsequently trains him through controlled mental attacks. Su Er recognizes that Snape initially withdraws each intrusion without examining his memories, but realizes that he must build effective mental defenses before further lessons expose them. The supplied passages establish sustained study and improvement rather than a dated declaration of complete mastery 153 155.

Soul, magical power, and the dead

Su Er’s magical control is closely associated with the strength of his soul. The overlapping of two souls through transmigration and Hufflepuff’s later enhancement make his soul exceptionally strong; by his duel with the twins, the magic available within his still-developing body is identified as his principal remaining restriction 392 523.

The Philosopher’s Stone and Snape’s potions greatly increase his magical reserves before he can regulate them properly. Dumbledore explains that the power genuinely belongs to him, but that his spells distort because his control has not caught up with the increase. Flitwick helps him understand spell practice as a process of taming magic, and three courses of Snape’s treatment eventually restore reliable control 242 256 322.

Su Er also investigates Hufflepuff’s notes on contact with the dead. His work with Aberforth centers on helping Ariana and requires both considerable soul strength and enormous magical reserves 316 317.

• Ariana and the Patronus: Ariana appears in connection with his Patronus and assists his studies. After the enhanced Patronus experiment, she temporarily ceases to appear even though he can still cast an otherwise normal Patronus 331 438.
• Enhanced Patronus ritual: Uses ancient runic recitation, Felix Felicis, mental-clarity preparations, and repeated restorative potions to form a silvery doorway. The process nearly drains him completely, and repeated dosing produces temporary potion resistance 424 425 426.
• Temporary contact with Lily: By the time Snape is assigned to teach him Apparition, Su Er has brought Lily back from beneath the ground to speak with Snape for roughly a dozen minutes; the passage does not establish permanent resurrection 534.
• Detached consciousness: After being struck by the Killing Curse in the Triwizard incident, remains conscious as a soul outside his body. He can observe events but initially cannot regain bodily movement; exerting himself after re-entering his body ejects his soul again 482 489.
• Recovery and uncertainty: Later explains to Dumbledore that a stranger confined his soul using his own sycamore wand. He does not know why he became a detached soul in the first place 493.

Teaching and investigation

Su Er teaches the secret Defence Against Dark Magic Association, emphasizing practical disarmament, the danger of trusting an armed opponent, and the difference between overwhelming force and efficient magical technique. Dumbledore praises his teaching talent and asks whether he would consider staying at Hogwarts after graduation 559 560 587.

He also contributes to Horcrux research. After returning two trained Dementors to Dumbledore, he proposes testing whether they can consume the soul fragment inside a Horcrux and identifies Ravenclaw’s Diadem in the Room of Requirement as a possible target. Dumbledore agrees to help investigate; the proposal itself is not proof that the method works 587.

Power Progression

Equipment / Weapons / Items

• Sycamore wand — Chooses Su Er after numerous unsuccessful trials. Ollivander later identifies it as a rare wand made from the Tree of Life with a thestral tail-hair core and urges him to explore its connection to life and death 8 47.
• Inheritance key — Given to him by Dumbledore as part of his biological parents’ legacy; later used to visit Vault No. 777 at Gringotts 5 11 80.
• Little Ash — A tawny owl purchased during the school-supplies trip and named by Angel; carries correspondence and parcels from home 9 11 20.
• Enchanted cloth bag — Given to him by Hagrid for carrying Christmas gifts. It uses the Undetectable Extension Charm, whose unauthorized use Hagrid warns is illegal 42.
• Transfiguration references — Includes a fragile, unique surviving book lent by Dumbledore, notes from their lesson, and McGonagall’s Christmas notes on the Switching Spell 28 49.
• Unicorn horn — A Christmas present from Hagrid 49.
• £5,000 cheque — A Christmas gift from the Ellisons 49.
• Family inheritance — Vault No. 777 contains three chests of Galleons, a family photograph that he repairs, and his mother’s notebook 80.
• Occlumency books — Advanced texts supplied by Dumbledore that require extensive supporting research in the library 137 139.
• Order of Merlin medal — Receives the honor by the post-investiture celebration at which Sirius thanks him for helping clear his case 266.
• Helga Hufflepuff’s handwritten notes and legacy — Provide material concerning soul power, contact with the dead, ritual magic, spell theory, and practical magical perception 316 317 529.
• Marauder’s Map — Uses it to mark locations and monitor movements; later closes it with “Mischief Managed” before attending class 206 379.
• Recording Crystal Ball — Used by Ginny at the Yule Ball and later supplies recorded evidence of Rita Skeeter’s illegal Animagus transformation and conduct 450 455.
• Emergency reserve potion — A later Christmas gift from Snape that lies dormant in his body and activates when his own magic is exhausted, protecting him from death through complete magical depletion 446.
• Triwizard prize money — Harry brings the money to his hospital bedside in accordance with their agreement to lift the cup together 489.
• Goblin-forged sword — Uses one to kill Nagini in the final confrontation 661.

Relationships

• Suli / Mrs. Ellison — Adoptive mother who found him as an infant. She calls him the family’s lucky angel and continues treating him as her own son after Angel’s birth 1 4.
• Mr. Ellison — Adoptive father. Proud of Su Er’s courage, he also challenges his rejection of the Bones name and encourages gratitude toward both families. His account of overcoming business failures later helps Su Er decide to prioritize his own strength over dependence on foreknowledge 3 10 163.
• Angel Ellison — Younger adoptive sister. Her love of unicorns motivates his advanced magical studies and much of his Christmas preparation. He later buys her a pink Puffskein and a bed for it in Diagon Alley 1 11 27 49 81.
• Hermione Granger — Childhood friend, neighbor, study partner, business partner, and later girlfriend. Their relationship is explicitly romantic by Chapter 300. He risks becoming trapped in the Time Labyrinth to save her, while she keeps vigil after he is struck by the Killing Curse and declares her love at his bedside. She subsequently helps conceal his survival by presenting his badger form as her pet 2 25 35 47 300 402 489 537 538.
• Amelia Bones — Paternal aunt and Head of the Department of Magical Law Enforcement. Reassures him that she will not remove him from the Ellisons and takes him to visit his biological parents’ grave and former home in Godric’s Hollow 47 48 50 51.
• Biological parents — Die when he is an infant but leave him a financial and personal inheritance. Their photograph and his mother’s notebook help him understand their affection for him. Lupin remembers his father’s Potions skill and his mother’s talent for charms and Transfiguration 48 80 215.
• Ariana — Companion in the Blurry Illusion Realm. On his second visit, he promises to tell her more about Hogwarts when he returns. She later appears through his Patronus and helps with his studies; finding a way to help her becomes a major research goal 1 16 317 331.
• Albus Dumbledore — Delivers his inheritance key, teaches him Layered Transfiguration, and lends him a rare book. Later advises him about apparent prophecy, magical control, Hufflepuff’s legacy, and Horcruxes; entrusts him with concealed operations and includes him in the plan against Voldemort 5 27 28 137 242 392 538 587 636.
• Minerva McGonagall — Supports him as a promising Transfiguration student and offers help connected to his parents’ legacy 5 19 25 49.
• Harry Potter and Ron Weasley — Friends whom he warns about Malfoy’s nighttime trap and helps protect during the troll encounter. Harry shares the Triwizard prize money with him, and Su Er later supports Harry’s leadership of the secret Defense group and insists that Harry should complete the final confrontation with Voldemort. Ron’s exaggerated accounts of Su Er’s Forbidden Forest adventures also make him the subject of embarrassing school rumors 24 30 31 33 133 489 559 661.
• Neville Longbottom — Friend whom he shields from Hermione’s overwhelming questioning; later joins their study group and participates in the Defense association 12 25 559.
• Fred and George Weasley — Kitchen acquaintances turned Warmth Bottle business partners. Their friendship includes attempted pranks, reciprocal teasing, and duels; he defeats them together when they seek his recommendation to join the Order 20 35 345 523.
• Rubeus Hagrid — Supplies magical materials, arranges gifts, and gives him the enchanted bag. Su Er selects bottles from Mr. Ellison’s wine cellar to thank him. Hagrid later visits him in the Hospital Wing, scolds him for entering the Forbidden Forest alone, and remains someone Su Er tries to help, including in his relationship with Madame Maxime 38 40 42 45 132 450.
• Severus Snape — Potions professor who awards him a rare point and quietly provides the key ingredient for softening unicorn hair. Becomes a demanding combat and Occlumency instructor, administers treatments to improve Su Er’s control, and later is assigned to teach him Apparition. Su Er also enables a brief reunion between Snape and Lily 21 39 153 169 262 322 534.
• Draco Malfoy — Antagonistic classmate. Su Er freezes him for insulting Hermione, and Malfoy later loses his nerve when attempting another confrontation. Malfoy spreads a false rumor that Su Er was purged for befriending Muggle-borns, and later still reacts fearfully to him 13 22 132 399.
• Sirius Black — Initially encounters Su Er in disguise; later thanks him for helping clear his case and suspects that Su Er was responsible for beating him during his imprisonment. Their relationship develops into friendly rivalry and cooperation, including a private duel and Ollivander’s rescue 236 266 322 628.
• Remus Lupin — Knows Su Er’s biological parents and shares recollections of their abilities and help during his school years. Also observes the circumstances surrounding Sirius’s private test of Su Er 215 322.
• Aberforth Dumbledore — Collaborates with Su Er in efforts to help Ariana, supplies resources for the enhanced Patronus ritual, and anxiously watches the experiment. He is visibly furious after Su Er is struck by the Killing Curse 316 317 424 426 489.
• Helga Hufflepuff — Recognizes Su Er’s outsider identity and previous-life name. Her notes and legacy become central to his soul-related research, stronger magical control, and eventual ability to perceive magic 317 389 392 529.
• Lisi — Centaur priestess who knows his name before their first meeting, returns a magically marked object he gave a Bowtruckle, and warns him against distributing items bearing his magic. Later asks him to obtain herb seeds from Hufflepuff’s garden in exchange for goods and centaur friendship 219 220 387.
• Bowtruckle acquaintance — Recognizes him in the Forbidden Forest, warns him of danger, helps him hide in a Wiggentree, and later guides him to Lisi 206 219.
• Rita Skeeter — Caught spying in her illegal Animagus form. Su Er uses recorded evidence and her attack on him to compel an Unbreakable Vow that restricts her access to Hogwarts and binds her future reporting to his instructions 455.
• Cedric Diggory and the Hufflepuffs — Support him as Hogwarts Champion, with Cedric wishing him luck and later bringing the House Cup to his bedside. Cedric also participates in the secret Defense group 411 489 557.

Story Role / Major Arcs

Arrival at Hogwarts

• Hogwarts Express: Defends Hermione from Malfoy and uses Immobulus against him before reaching the school 13.
• Sorting: The Hat recognizes talent, courage, and shrewdness suitable for several houses, but chooses Hufflepuff after hearing Su Er’s preference for comfort and good food 15.
• Early reputation: Earns points in Transfiguration, Charms, and Potions, attracting attention from classmates eager for casting advice 19 21 22.
• Midnight rescue: Warns Harry, Ron, Hermione, and Neville that Malfoy’s proposed duel is a trap, conceals Hermione in a large trophy, and helps the group evade Filch and Snape 24.

Halloween troll encounter

• Searches for Hermione when she misses lessons, finding her shortly before they encounter Quirrell and the approaching troll 29.
• Helps Harry and Ron escape the troll’s attack, levitating its club and coordinating with Hermione as her spell changes the floor 30.
• Receives twenty Hufflepuff points for bravery; Hermione receives twenty Gryffindor points. He later downplays his involvement to his housemates 31.

Warmth Bottle partnership

• Recognizes the commercial potential of Bluebell Flames and proposes selling bottled hand warmers to fund Christmas presents 33.
• Arranges for himself and Hermione to produce the bottles, while Fred and George supply containers, advertise, and handle sales 35.
• Negotiates a sixty-forty split of the proceeds between the production and sales partners 35.

Christmas gifts and reunion

• Uses the Room of Requirement as a workshop for processing magical materials and making scarves 39 40 42.
• Gives Hermione the ginger cat she names Crookshanks during their journey home 44.
• Reunites with Angel and his adoptive mother, then gives Angel Transformation Sweets and spends time with his family 44 45.
• Separately from his own Transfiguration work, lets Angel believe that Dumbledore’s moving unicorn figurine is his gift 49.
• Meets Amelia, agrees to visit the hollow, and first accompanies her to the Ministry of Magic using Floo Powder 47 48 50.
• Visits Godric’s Hollow with Amelia, sees the Potter family memorial, mourns at his own parents’ gravestone, and is offered a visit to their former home 51.

Second-year investigations and Animagus training

• Visits his inherited Gringotts vault and discovers the photograph, money, and writings left by his biological parents 80.
• Buys Angel a pink Puffskein while waiting for Hermione in Diagon Alley and notices Ginny carrying a battered black book after the Flourish and Blotts confrontation 81.
• Plans to learn both Animagus transformation and the Patronus Charm before the Dementor crisis he remembers from the original third-year storyline 84.
• Locates the snake marking on the bathroom tap associated with the Chamber of Secrets and asks Moaning Myrtle to report other visitors 100.
• Secures Riddle’s diary but dismisses the prospect of learning dark magic from its school-age version of Riddle when Hogwarts already offers skilled professors 119.
• Completes his Animagus potion and transforms in the Forbidden Forest, exhausting his reserves before becoming caught in a dangerous encounter with Acromantulas 128 129 130.
• Recovers in the Hospital Wing after wounds, poisoning, and magical overuse. Pomfrey warns that the overuse could have made him a Squib; Snape’s Magic-Restoring Potion helps his recovery 132.
• Alienates Hermione by prolonging the appearance of illness after recovering, then becomes embarrassed by Ron’s wildly exaggerated accounts of his forest adventures 133.
• Studies Occlumency, begins Snape’s punishing practical lessons, and uses the Room of Requirement and his badger form while temporarily remaining out of public sight at Dumbledore’s direction 139 148 153 155.

Forbidden Forest, Sirius, and increased magical power

• Continues training at Snape’s home, gradually learning the importance of rapid, concealed, and nonverbal attacks 169.
• Treats Scabbers by removing a parasite, gives Ron dittany extract and care instructions, and requests secrecy about the treatment 206.
• Encounters a Bowtruckle that warns him of danger and helps him hide while a huge lion-headed, goat-bodied creature with a dragon’s tail passes beneath their tree 206.
• Meets Lisi, who knows him as Su Er Bones and warns him about giving away objects bearing his magic 219 220.
• Confronts Sirius while concealing his own identity and later becomes involved in Dumbledore’s plan concerning Peter Pettigrew 236 240.
• Gains a major increase in magical power from the Philosopher’s Stone and Snape’s potions, then seeks instruction and treatment to overcome the resulting loss of control 242 244 256 262.
• Receives an Order of Merlin medal; Sirius thanks him for helping clear his case, offers access to his vault, and hints that he has recognized Su Er’s earlier disguise 266.
• Eventually demonstrates restored magical control and layered combat techniques in a private duel with Sirius 322.

Hermione’s Time-Turner crisis

• Helps an exhausted Hermione with her assignments as her workload becomes increasingly difficult to sustain 300.
• Begins forgetting her as memories involving her turn gray and disappear. Ariana alerts him to the losses, and he discovers that Dumbledore no longer recognizes Hermione’s name 301.
• Seeks Dumbledore’s help as the effects of Hermione’s excessive Time-Turner use become apparent 301.
• Risks becoming trapped in the Time Labyrinth with Hermione to save her; she later explicitly acknowledges this sacrifice while keeping vigil at his bedside 489.

Hufflepuff’s legacy and Ariana

• Examines Helga Hufflepuff’s handwritten notes while collaborating with Aberforth on how to help Ariana 316 317.
• Concludes that the proposed work requires greater soul power and considerable magic, then researches the complex ritual and magical theory involved 317.
• Receives Ariana’s help with his studies, including the History of Magic work for which he earns a perfect score 331.
• Agrees conditionally to seek rare herb seeds for Lisi if he passes Hufflepuff’s trial 387.
• Enters Hufflepuff’s garden and meets her translucent remnant, which recognizes both his full adopted name and his previous identity as Su Yao 388 389.
• Receives a soul-strengthening legacy that improves his magical control, enables nonverbal wandless levitation, and restores faded memories of the original story 392 393 429.
• Performs the enhanced Patronus ritual with Aberforth, forming a silvery doorway at nearly fatal magical cost. Ariana’s subsequent absence from his otherwise functional Patronus troubles him 424 425 426 438.

Triwizard Tournament and Rita Skeeter

• Initially tells Hermione that he does not intend to enter the Tournament because he has more important work, but is later selected as Hogwarts Champion 374 411.
• Receives a surprise celebration from the Hufflepuffs; Cedric congratulates him despite the house’s original expectation that Cedric would compete 411.
• Draws the Swedish Short-Snout and the first position for the dragon task 429.
• Attends the Yule Ball with Hermione, dances with her, and later invites her outside while attempting to help Hagrid’s relationship with Madame Maxime 450.
• Records Rita Skeeter’s illegal Animagus transformation. After disarming her when she attacks, compels her to swear an Unbreakable Vow to stay away from Hogwarts and publish articles at his instructions, with Hermione witnessing the vow 455.
• Observes Barty Crouch Jr. as his Polyjuice disguise begins to fail and evades discovery while moving between trees 460.
• Uses layered Impervius charms and the Bubble-Head Charm for the lake task 462.
• Plans to reach the third task’s endpoint together with Harry while concealing how much stronger he is; practices the Killing Curse and Shield Charm as additional precautions 473.
• Encounters a spell-reflecting Blast-Ended Skrewt and later breaks through Krum’s smoke-python with stronger magic 477 478.

Killing Curse, recovery, and concealed survival

• Is struck by the Killing Curse during the Triwizard incident. His soul remains conscious outside his body and witnesses Harry being taken toward Voldemort’s resurrection ritual 482 489.
• Returns to Hogwarts but cannot initially regain voluntary movement despite his body and magic remaining healthy. Hermione repeatedly visits, recounts their shared memories, and declares her love 489.
• Receives the Tournament prize money from Harry and the House Cup at his bedside from Cedric. Dumbledore publicly praises Su Er and announces Voldemort’s return 489.
• Notices the continued activity of Rita’s Unbreakable Vow and regards its survival as evidence that he is not truly dead 489.
• Later tells Dumbledore that an unidentified man confined his soul with his own sycamore wand before he next awakened at Hogwarts 493.
• Demonstrates his recovered fighting ability by defeating Fred and George together in a duel over their proposed Order applications 523.
• Agrees to relinquish his student identity for the following school year and remain publicly dead to avoid attracting Voldemort’s attention. Returns to Hogwarts as Hermione’s supposed pet badger, with the truth restricted to Hermione and core Order members 538 540.

Secret Defense instruction and Horcrux research

• Participates in an expedition to the Horcrux cave, using magical perception to identify its concealed entrance 529.
• Is assigned Apparition lessons with Snape at Dumbledore’s request 534.
• Appears as Professor Aibo before the secret Defense group and demonstrates his ability by evading attacks from seven students without raising his wand 557.
• Shows the importance of reactions and overwhelming skill by bringing down the twins without casting, then teaches practical caution toward an opponent who still holds a wand 558 559.
• Warns that Dumbledore’s Army would be a politically dangerous name, leading the students to adopt Defence Against Dark Magic Association, or D.A. Harry is chosen to lead when Su Er cannot attend 559.
• Demonstrates a multi-target Disarming Charm while distinguishing efficient technique from wasteful expenditure of magical power 560.
• Accepts Dumbledore’s suggestion of a future teaching career and proposes an experiment using Dementors against Ravenclaw’s Diadem 587.

Later teaching and the final confrontation

• Recognizes the reported death of Emmeline Vance in a Muggle news broadcast and becomes alarmed by signs of escalating violence 621.
• Helps rescue Ollivander and bring him to Hogwarts. Sirius celebrates with him afterward and has him sign several contracts while drinking, which Su Er later struggles to remember clearly 628.
• Demonstrates Shield Charm techniques to students by having Harry attack him with every jinx he has learned 632.
• Joins Dumbledore and Snape in planning to exploit Draco’s assassination attempt and Snape’s Unbreakable Vow, using Dumbledore’s apparent death and declining strength to draw Voldemort into a final confrontation 636.
• Coordinates with Rosier and her companions over helping another person take control of the Ministry when the time is right, then returns to the watched Burrow after the Death Eaters’ uprising 649.
• Infiltrates the Burrow in badger form and opens its back door with a nonverbal Unlocking Charm 650.
• Seizes the opportunity when Nagini leaves Voldemort’s side and kills her with a goblin-forged sword. Fawkes intercepts Voldemort’s Killing Curse aimed at Su Er 661.
• Helps identify Voldemort’s Horcruxes, including Harry and Ravenclaw’s Diadem. After Dumbledore binds Voldemort and asks Su Er to finish him, Su Er points to Harry and insists that the conflict should end where it began 661.

Notable Quotes

“I hope that the people I cherish can all be well, healthy, and happy.” 4

“Actually, I have another last name, Mr. Hat. I prefer you to call me Su Er Ellison.” 15

“How could first-year wizards possibly beat a troll?” 31

“Boyfriend!” 402

“That was it?” 557