Severus

Biodata

Feature	Details
Name	Severus Snape (西弗勒斯)
Alias(es)	Sev 237
Species/Race	Half-blood wizard 2 234
Gender	Male
Affiliation	Slytherin House; Hogwarts School of Witchcraft and Wizardry 86
Occupation/Role	Hogwarts student; Potions prodigy; Manus's student and training partner 147 237
Status	Alive 483
First Appearance	Chapter 2, “Monster?”

Power Progression

Stage / Realm / Level	Chapter	Notes
Magical Outburst	18	Experiences his first magical outburst, confirming his status as a young wizard and beginning formal magical education.
Potions apprentice	18	Joins Eileen Prince's Potions lessons alongside Manus; becomes fascinated by practical brewing and magical technique.
Zero-Ring Cantrip user	65	Learns basic magic-control cantrips, including Arcane Sigil, the Communication Charm, and simple uses of Mage Hand.
Wand user / defensive spellcasting	79	Receives a walnut, dragon-heartstring wand and successfully casts Expelliarmus for the first time, disarming a stone statue.
Tactical duelist	170–171	Develops a flexible fighting style based on movement, Mage Hand, restraints, hexes, and timing; defeats Lily with Tarantallegra followed by Expelliarmus.
Advanced magic foundation	291	Completes Manus's introductory theory texts and becomes eligible to begin First-Circle Magic after review and examination.
Original spell creator	331–332	Reveals Sectumsempra, a cutting curse he had researched since his first year, along with its dedicated counterspell.
Conjuration specialization	428	Chooses the Conjuration School as his primary Magic Model discipline.

Background

Severus grew up in Cokeworth as the son of the witch Eileen Prince and the Muggle Tobias Snape. His childhood home was marked by poverty, Tobias's drinking, and hostility toward the magic shared by Eileen and Severus. Tobias called them “monsters” after seeing Eileen light a fire with magic, leaving Severus confused about why his father resented something he had known about before marriage. 2 3 48

Manus became Severus's first close friend and a refuge from the Snape household. He encouraged Severus to visit whenever conditions at home became unbearable, framing the support as mutual friendship rather than charity. 5 Severus internalized Manus's promise that gaining magical ability, education, and financial independence would allow him to change his family's future. 5 53

After Severus underwent his magical outburst, Eileen began teaching him Potions alongside Manus. Manus also deliberately trained Severus in rational thinking, emotional resilience, and basic pre-wand spellcasting. By age nine, Severus had become markedly more confident, independent, and analytical. 18 54

Manus's influence also altered the Snape household. Eileen recognized that she could resist Tobias rather than remain trapped by habit, substantially improving her and Severus's quality of life while Tobias's influence over them diminished. 60

Personality

Severus was initially shy, gentle, and deeply affected by his home environment. He struggled to understand his parents' relationship and blamed himself for hardships he could not control. 3 54 148 Learning about Eileen's lively youth left him troubled by the possibility that she had sacrificed her happiness for him, but he transformed that guilt into a determination to give her financial security and the freedom to choose her own future. 147 148

He is highly ambitious and refuses to accept inferiority as permanent. After recognizing the gulf between himself and Manus, he resolves not merely to catch up, but to create his own path and eventually surpass him. 79 This ambition is paired with pragmatism: he carefully plans for a career in Potions while preserving alternatives through subjects such as Arithmancy and Ancient Runes. 353 354

Severus is sarcastic, competitive, and willing to endure discomfort for growth. He frequently spars with Lily, but their rivalry is grounded in mutual trust; he accepts punishment when he believes he has wronged her and reacts fiercely when others insult or threaten her. 68 352 He rejects Pure-blood extremism despite his Slytherin affiliation, recognizing that the faction would despise him as a Half-blood as readily as it despises Lily. 234 352

Abilities & Skills

Potions

Severus possesses exceptional Potions talent inherited from Eileen Prince and refined through years of instruction from Eileen and Manus. Professor Slughorn considers him more gifted than his mother and a potential future Potions professor. 147 403

• Began studying Potions with Manus under Eileen's instruction in childhood. 18 147
• Demonstrated the theoretical understanding needed to begin advanced brewing, though he initially lacked practical confidence. 143
• Endured repeated failures while attempting an updated Wolfsbane Potion, making progress through pressure and repetition. 144 148
• Identifies unnecessarily complicated potion structures and attempts to analyze the purpose behind each brewing step. 149
• Studies the properties of Veritaserum rather than fearing it, immediately noticing its unusual quality after being administered a drop. 481 482

Wizarding Magic and Dueling

Severus combines precise casting with improvisational tactics rather than relying solely on direct attacks.

• Uses defensive and control spells including Glacius, Incarcerous, Flipendo, Finite, and Expelliarmus. 79
• Employs Mage Hand to compensate for limitations in his Binding Charms and create casting advantages. 171
• Casts hexes while moving, making his timing and angles harder to predict. 171
• Uses low-risk disruptive magic—such as Tarantallegra and the Toenail-Growth Charm—to create openings for decisive spells. 170 187
• Trained to interrupt his own spells without dangerous magical backlash, improving his adaptability under pressure. 188

Occlumency and Mental Discipline

Manus trained Severus to think rationally and resist emotional instability, believing his upbringing could otherwise distort his development as a spellcaster. 41 54

• Uses Occlumency to counter a Daze Spell during his duel with Lily. 331
• Displays strong emotional resilience toward ordinary bullying and social rejection. 237
• Remains unable to reliably block Voldemort's Legilimency, making further Occlumency training essential if the Death Eaters target him. 234 236

Sectumsempra

Sectumsempra is Severus's self-created cutting curse, developed over several years for swift surprise attacks. 331 332

• Opened his successful attack on Lily by briefly dazing her, then cast Sectumsempra before she could recover. 331
• The curse bypassed Lily's defenses and nearly severed her wand arm. 331
• Ordinary healing magic could not repair its wounds during Severus's tests on rabbits. 331
• Its dedicated counterspell is Episkey (Vulnera-Sanentur), cast by tracing the wound. 331
• The counterspell requires a genuine desire to save the victim; artificial coercion cannot reliably reproduce the necessary emotion. 332
• Severus had not yet mastered non-verbal casting of Sectumsempra when he first used it against Lily. 332

Magic Model Studies

Manus formally introduced Severus to a broader magical system distinct from standard wand magic, treating him as a potential fellow practitioner rather than merely a Hogwarts student. 237

• Received more than thirty notebooks of condensed foundational theory before beginning formal instruction. 237
• Completed the introductory material, gaining deeper understanding alongside a growing number of more precise questions. 291
• Chose Conjuration as his primary school, despite having already created a Curse-level spell through the wizarding system. 428
• Studies magic through linked principles and structures rather than rote spell memorization. 428

Equipment / Items

• Walnut wand — Thirteen and a half inches, reasonably supple, with a dragon-heartstring core. 79
• Potted Wiggentree — A gift from Manus that Severus protects closely; Manus upgrades it annually. The plant later detects a Werewolf at Hogwarts. 54 144
• Veritaserum — Receives a bottle from Professor Hesper Staky, then arranges for Professor Slughorn to keep it securely in supervised storage. 482 483

Relationships

• Manus — Childhood friend, mentor, protector, and advanced-magic instructor. Manus offers Severus refuge from his home life, trains his rational thinking and combat ability, and prepares him for the possibility of Death Eater coercion. 3 5 237
• Lily Evans — Closest friend and competitive sparring partner. Their cross-House relationship is kept discreet when necessary, but they exchange intelligence, study together, and repeatedly push one another to improve. 68 100 353
• Eileen Prince — Mother and first Potions teacher. Severus's ambition is strongly tied to giving her financial security and the freedom to live without sacrifice. 18 148
• Tobias Snape — Muggle father. His resentment of magic, alcoholism, and abusive behavior shaped Severus's early life; Severus ultimately rejects the possibility of serving Voldemort even if ordered to kill him. 2 48 236
• Horace Slughorn — Potions professor who recognizes Severus's exceptional talent, recalls Eileen's potential, and suggests that Severus could eventually succeed him as Hogwarts's Potions professor. 147 403 404
• Hesper Staky — Future Potions professor and Potions master who offers Severus guidance after determining that he was uninvolved in the Great Lake fight. 482

Story Role / Major Arcs

• Cokeworth childhood — Confides in Manus about Tobias's abuse and comes to understand that his parents' marriage is not the loving relationship he imagined. 2 3
• Early magical education — Experiences his magical outburst, studies Potions under Eileen, and receives extensive mental and magical training from Manus. 18 54 65
• Hogwarts entry — Is sorted into Slytherin, obtains his wand, and continues training with Manus and Lily despite increasing House tensions. 79 86
• Wolfsbane assessment — Struggles through Manus's deliberately demanding Wolfsbane Potion training after the Wiggentree detects a Werewolf at Hogwarts. 144 145 148
• Death Eater dilemma — Learns that Slytherin students are being recruited by Death Eaters and rejects the illusion that he could join Voldemort in a harmless support role. 234 236
• Advanced magical studies — Accepts Manus's offer to learn a separate, broader magical discipline and completes its foundational curriculum. 237 291
• Sectumsempra development — Defeats Lily with his completed original curse, establishing himself as both a dangerous duelist and a spell inventor. 331 332
• Career planning — Considers becoming a Potions master and eventually teaching at Hogwarts, while maintaining broader academic and professional alternatives. 353 403 404

Notable Quotes

“Among the Death Eaters, the first path doesn't exist.” 236

“I do!” 237