Mia

Biodata

Power Progression

Background / History

Reincarnation and Childhood

Before becoming Mia Potter, Mia was a university student who knew Harry Potter mainly through limited movie commentary. She awakens as an infant in Snape’s arms and realizes that she has become the protagonist’s twin sister—a character absent from the story she remembers 1.

Following their parents’ deaths, Mia and Harry are left with the Dursleys. Both endure inadequate food, Dudley’s discarded clothes, compulsory housework, and confinement in the cupboard under the stairs. Mia receives a small separate room at seven and secretly lets Harry sleep there 1.

Despite being the younger twin, her previous-life memories make her the more mature, caretaking sibling. After Harry’s accidental magic at the zoo leads to a week of punishment, she secretly brings him food and keeps him company. She also discovers that Harry can speak to snakes, an ability she does not share 1.

Entering Hogwarts

Mia eagerly anticipates the Hogwarts letters and recognizes them when they arrive. The Dursleys confiscate the letters and confine the twins, but Hagrid eventually reaches them with a birthday cake—their first outside birthday present in eleven years 2.

At Hogwarts, Mia is sorted into Slytherin while maintaining her friendships with Harry, Hermione, and Ron. Draco welcomes her into his circle, but blood-status insults from Pansy, Daphne, and their followers lead to a common-room duel. Her victory earns her a schoolwide reputation and the beginnings of a Slytherin following 6 9.

Snape turns her evening detentions into private instruction, while McGonagall begins tutoring her in Transfiguration. Mia also joins Fred and George’s prank team and befriends Fluffy during unauthorized nighttime visits 8 9 10 12.

Confrontations with Voldemort

While collecting Acromantula ingredients in the Forbidden Forest, Mia discovers Quirrell drinking unicorn blood for Voldemort. She attacks to save the unicorn and duels him until the professors arrive. Quirrell escapes, and Fawkes heals Mia’s injuries 19.

Firenze subsequently tells the professors that Mia may change outcomes previously considered fixed. Snape responds to the danger by teaching her offensive magic and granting her access to the library’s Restricted Section 20 21.

Mia later intervenes when Harry and Draco face Voldemort through Quirrell. Her use of Ancient Magic leaves her unconscious for several days, although a self-repair effect continues replenishing her exhausted magic. After recovering, she learns that Quirrell has been imprisoned in Azkaban and the Philosopher’s Stone destroyed. She finishes the school year first in the final examinations 27 28.

Summer and Second Year

Back at the Dursleys’, Mia continues researching Ancient Magic and alchemy, including a device intended to bypass the Trace. When their friends’ letters fail to arrive, she reassures Harry that they have not abandoned him. Ron, Fred, and George eventually rescue the twins and take them to the Burrow 30 32.

During second year, Mia ends her friendship with Draco after he calls Hermione a blood-status slur and refuses to apologize. She begins training Harry, Hermione, and Ron in practical combat while secretly undertaking the Animagus process. Her successful crow transformation prompts Harry and Hermione to reprimand her for attempting it alone 38 39 41.

Medical Research and the Chamber Investigation

Mia proposes combining modern psychological therapies with a new potion to treat the lasting effects of the Cruciatus Curse. Snape collaborates on the potion, and Dumbledore arranges trials at St. Mungo’s. Early interventions produce remarkable results; the Longbottoms enter the trials with Augusta’s consent, but their recovery is not established 43 44.

During the Chamber of Secrets investigation, Mia discovers Tom Riddle’s notebook and recognizes Ancient Magic traces resembling those on Harry’s scar. After viewing its memory of Hagrid’s accusation, she identifies it as a Horcrux and places tracking, locating, and confinement spells on it 50.

Appearance

• Human form: Resembles Lily almost exactly, apart from her pitch-black curly hair. She has green eyes like her mother; childhood undernourishment leaves both twins thin 1.
• Magical aftereffect: Harry notices her pupils turning red and her magic threatening to become uncontrolled when she is emotionally agitated. He suspects a connection to her earlier magical exhaustion 31.
• Animagus form: A small crow with black feathers showing a blue-purple metallic sheen, a black beak, and sharp black talons 41.

Personality

Mia is fiercely protective of Harry and often acts more like his older sister than his younger twin. She comforts his insecurities, challenges mistreatment, and refuses to leave him behind for a Christmas visit to Malfoy Manor. Her protectiveness extends to Hermione and Luna Lovegood, whom she supports against insults and bullying 1 24 30 38 40.

She rejects prejudice without overlooking individual wrongdoing. Before Sorting, she argues against condemning all Slytherins; later, she breaks with Draco over his treatment of Hermione. Although she worries about the future loyalties of friends from wizarding families, she still wants them to survive the coming conflict 5 34 38 43.

Her disciplined study habits coexist with a mischievous streak. She finishes homework promptly, reads extensively, and pursues difficult research, but also funds and develops pranks with Fred and George. She enjoys teasing Harry and uses an innocent appearance to help sell her tricks 8 11.

Mia’s confidence frequently becomes recklessness. She repeatedly enters the Forbidden Forest, experiments with dangerous magic, and attempts her first Animagus transformation without supervision. Her remorse after reprimands does not always prevent her from taking similar risks again 19 20 28 41.

Abilities & Skills

Spellcasting and Dueling

Mia learns spells unusually quickly and can defeat groups of more experienced students 9 12.

• Defense and control: Uses Protego, Expelliarmus, and Petrificus Totalus in rapid succession 9.
• Offensive magic: Employs fire, blasting, binding, the Cruciatus Curse, and Sectumsempra 19 21.
• Protecting others: Shields falling Quidditch players and destroys the rogue Bludger attacking Harry 46.
• Utility magic: Uses Disillusionment, unlocking, lighting, and large-area Warming Charms 8 17.
• Physical skill: Defeats challengers through both magic and hand-to-hand fighting; her reflexes attract Wood’s interest 13 18.
• Limit: Her documented Patronus attempts produce only shapeless white smoke despite a week of practice 13.

Ancient Magic

Mia possesses the rare ability to perceive Ancient Magic, a gift also attributed to Lily 27.

• Detects magical traces in Harry’s scar and Riddle’s notebook 27 50.
• Uses a self-repair effect to recover from a deliberately induced magical crisis 28.
• Channels restorative energy that relieves her trainees’ exhaustion and replenishes their magic 39.
• Requires substantial magical reserves; forcing its use can cause catastrophic exhaustion and permanent loss of magic 28 39.

Ancient Runes and Alchemy

Mia combines runic inscriptions with crafted objects to create protective equipment 24 25.

• Builds automatic shielding accessories and linked location-sensing functions 39.
• Enhances Harry’s necklace so she can sense when he is in danger 31.
• Creates a device that imitates an adult wizard’s magical fluctuations to interfere with the Trace 30.
• Initially struggles with craftsmanship: Harry’s first protective bracelet requires considerable time and many ruined attempts 25.

Potions and Treatment Research

Snape personally teaches Mia his accumulated potion-making experience 12.

• Successfully brews Felix Felicis under his guidance 13.
• Brews Pepperup Potion for use during intensive study and training 39.
• Helps Harry, Ron, and Hermione prepare Polyjuice Potion; identifies cat hair among Hermione’s intended ingredients before she drinks it 47 49.
• Develops a treatment proposal addressing anxiety, depression, and other lasting consequences of the Cruciatus Curse 43.
• Collaborates with Snape and St. Mungo’s on experimental potions and treatment adjustments 44.

Transfiguration and Animagus Transformation

Mia studies Transfiguration well ahead of her year and receives private instruction from McGonagall 10.

• Performs a wandless restoration of a broken vase 13.
• Becomes a crow Animagus after completing the Mandrake-leaf, potion, and incantation requirements 39 41.
• Learns to fly shortly after her first transformation; her clothes and jewelry merge into her transformed body 41.
• The first transformation is painful and requires her to avoid panic or surrendering control to the animal mind 41.

Magical Creatures

Mia shows a particular aptitude for interacting with magical creatures 10.

• Wins Fluffy’s affection through warm pastries, petting, and repeated visits 9.
• Works with Firenze to clear Acromantulas from the forest 21.
• Is recognized and welcomed by the unicorns even in crow form 41.
• Remains afraid of rats and bugs despite willingly fighting Acromantulas 4 19.

Study and Instruction

• Reads quickly, retains information well, and regularly helps Hermione understand difficult material 8.
• Places first in her first-year final examinations 28.
• Trains Harry, Hermione, and Ron through demonstrations, sparring, and animated-statue combat exercises 39.
• Has difficulty identifying constellations and relies on Draco’s help with her star chart 17.

Equipment / Weapons / Items

• Wand — Eleven inches, elder wood, dragon heartstring. It chooses Mia after several unsuccessful trials; it is distinct from the Elder Wand 3.
• Secret-passage map — A copy of the twins’ map, used for nighttime exploration and finding the Hogwarts kitchen 8 17.
• Möbius strip necklaces — Matching childhood gifts for herself and Harry. She later engraves Harry’s with protective Ancient Runes 24 31.
• Golden Snitch bracelet — A protective runic accessory she makes for Harry 24 25.
• Alchemical training bracelets — Accessories given to Harry, Hermione, and Ron, providing automatic shields and approximate location sensing 39.
• Trace-interference device — Her own invention, designed to make nearby spellcasting register as occurring around an adult wizard 30.
• Dark Magic defensive artifact — A protective gift from Theodore before the summer holidays 30 43.
• Snape’s Dark Magic notebook — A Christmas gift that Mia particularly values 24.
• Personal gifts — Include Draco’s silver-snake brooch with a dark green gemstone, Theodore’s blue bracelet, and Harry’s crown fulfilling a childhood promise 24.

Relationships

• Harry Potter — Older twin brother and closest family member. Their mutual protectiveness can cause conflict when Mia conceals dangerous plans; she also publicly defends him when students shun him over Parseltongue 1 31 41 47.
• Lily Evans and James Potter — Deceased parents. The Mirror of Erised shows Mia an adult version of herself and a scene with Lily and James beside the twins 16 26.
• Severus Snape — Protective mentor in potions and combat, later her medical-research collaborator. His nominal detentions become extensive private lessons 9 12 20 43.
• Minerva McGonagall — Private Transfiguration tutor who recognizes her talent and warns her against unsupervised Animagus experimentation 10 12.
• Hermione Granger — Close friend, study partner, and trainee. Mia comforts her after Ron’s insult and refuses to excuse Draco’s blood prejudice 8 21 38 39.
• Ron Weasley — Friend, frequent prank target, and reluctant participant in Mia’s demanding combat training 4 11 39.
• Draco Malfoy — Close friend with affectionate and flirtatious interactions, including hand-holding and Mia’s nickname “Little Dragon.” Their friendship remains broken over his refusal to apologize to Hermione 17 38 49.
• Theodore Nott — Quietly attentive friend who supplies missed homework notes, a potion, and a protective artifact. Mia considers making him a defensive gift in return 28 30 43.
• Fred and George Weasley — Prank partners who rescue her from Filch, share castle routes, and help bring her and Harry to the Burrow 8 11 32.
• Daphne Greengrass — Initially joins the insults against Mia, then sincerely apologizes and persistently works to rebuild their relationship 9 35.
• Luna Lovegood — Friend whose unusual ideas interest Mia. Mia reports and confronts Luna’s bullies rather than accepting their behavior 40.
• Luna, her cat — Black cat given to Mia by Hagrid; distinct from Luna Lovegood. Clever enough to find Mia reliably and affectionate toward Harry 4 30 40.
• Firenze — Forest ally who predicts Mia may alter fixed outcomes and cooperates with her against Acromantulas 20 21.
• Voldemort / Tom Riddle — Enemy who initially wants Mia recruited into his service, then authorizes her death if she cannot be recruited. Mia later identifies his diary as a Horcrux 12 27 50.

Notable Quotes

“What’s there to thank? We’re brother and sister, after all.” 1

“Yes! I like all magic.” 20

“Your enemies won’t give you time to react.” 39

“Mm, I know, but I mind.” — Responding to Luna Lovegood’s indifference toward being bullied. 40