Liminal

A liminal orphan murdered by the six parriarchs in 1507 through a necromantic ritual that bound her spirit to the Arcanaeum. She has served as the sentient library's ghostly Librarian for over five centuries, wielding immense magical power within its walls but utterly unable to leave. Her translucent form retains the blue velvet gown she died in, her dark hair forever escaping its braid. Beneath her prickly, rule-enforcing exterior lies profound loneliness and a desperate, carefully suppressed longing for touch and connection. Each physical contact with six specific heirs causes black fissures to spread across her ghostly body, mirroring cracks on her crystalline corpse in the Vault below. Her greatest fear is not death but what becomes of the Arcanaeum without her protection.

A liminal bastard plucked from the inept world by his manipulative father Josef⁹, who orchestrated the car crash that paralyzed his twin sister Edlynn⁸ as leverage. Golden-eyed and physically imposing, he wears resentment like armor and knows almost nothing about arcanist society. His gruff, defensive hostility masks a fierce protective instinct toward Edlynn⁸, the only family he truly values. Josef⁹ demands he retrieve Mathias Ackland's grimoire from the Vault in exchange for Edlynn⁸'s medical care, making Northcliff simultaneously Kyrith¹'s antagonist and, eventually, one of her most unexpected defenders. He struggles academically but possesses immense raw magical potential twice that of his father.

The heir to House Winthrop possesses an incandescent, almost aggressive cheerfulness that masks childhood trauma: his mother's death shattered his father, who abandoned magic entirely. A transmutation prodigy and star magiball reaper, his arms are covered in intricate runeform tattoos. He treats Kyrith¹ as a person from their first meeting, demanding her name when no one else has bothered in centuries. His relentless hug attempts, noisy enthusiasm, and shameless flirtation conceal genuine emotional depth and a stubborn loyalty to those he considers his people. He is the first person to truly see Kyrith¹, and his unwavering affection becomes both her greatest temptation and her final choice.

The heir to House Ó Rinn carries a generational ensorcellment curse placed by a vengeful Talcott ancestor centuries ago. When the runeform on his chest activates, he will lose whatever he values most, as his parents, aunt, and countless relatives did before him. His piercing ice-blue eyes and hawk-like intensity mask desperation: he has spent years in the Arcanaeum's Astrology Room searching for a cure, maintaining careful emotional distance from everyone except Lambert³, who refused to be kept away. Brilliant and sometimes ruthless, he bargains with Kyrith¹ for help breaking his curse, but his terror of losing what he loves can override his judgment with catastrophic consequences.

A Talcott heir who was cast out by his family after an unspecified incident and became one of the Arcanaeum's most reliable collectors, retrieving rare magical texts from across the world. His stillness, scars, and black-eyed intensity evoke a shark: beautiful, dangerous, and always watching. He has known Kyrith¹ longest of the six heirs and was the first person whose touch caused her cracks, though neither understood the phenomenon at the time. When he rescues Jasper McKinley⁷ from the Carltons' basement and claims Sanctuary, he reveals a fierce protective instinct that extends to Kyrith¹ herself. He becomes her most steadfast defender, accompanying her into the Vault during her nightly death reenactments.

Recently appointed heir to House Carlton after his sister Anthea¹⁴'s disgrace, Pierce is a powerful destruction mage trapped between his ruthless mother Isidora¹²'s demands and his own conscience. Immaculately dressed and aristocratic to his bones, he initially presents as an arrogant antagonist, threatening Kyrith¹ and attempting to reclaim Jasper⁷ on his family's behalf. But glimpses of his private communications with his exiled grandfather Benny¹¹ reveal a man who despises the necromantic schemes he is forced to participate in. His touch cracks Kyrith¹, and when he learns this, he becomes a reluctant instrument in his family's campaign to study and potentially destroy her.

The heir to Clan McKinley spent ten years chained in the Carltons' basement, his memories suppressed by ensorcellments and his magical core shattered from repeated forced burnouts. When Dakari⁵ rescues him, he wakes to a world that moved on without him. His natural temperament is gentle and submissive: he blushes easily, calls Kyrith¹ 'mistress' without thinking, and possesses a sweetness that survived a decade of torture. A restoration prodigy, his healing abilities made him valuable to the Carltons. His attraction to Kyrith¹ is immediate and tender, and their intimate encounter reveals a man who finds comfort in surrendering control after years of having none.

Northcliff²'s twin sister whose paralysis and chronic pneumonia were caused by the car crash Josef Ackland⁹ engineered. Where Northcliff² is dark and brooding, Eddy is radiant, chatty, and fiercely loyal. After Kyrith¹ heals her spine and lungs, she moves into the clock tower and fills the once-somber space with fairy lights, makeup vanities, and irrepressible chatter. She becomes Kyrith¹'s first real roommate and confidante, defending her against anyone who causes her pain, including Galileo⁴. Her magical potential is modest, a fact she must learn to accept, but her emotional intelligence and protective instincts make her invaluable to the found family forming around the Librarian¹.

The current parriarch of House Ackland, who has spent decades fathering liminal bastards in hopes of producing one powerful enough to regain entry to the Arcanaeum. He orchestrated the car crash that paralyzed Edlynn⁸ specifically to blackmail Northcliff² into cooperation. Cold, calculating, and physically abusive, he demands Northcliff² retrieve Mathias Ackland's grimoire from the Vault while concealing his true motives. His obsession with restoring his family's access to the library drives many of the novel's conflicts.

The magister who mentored and then sacrificed Kyrith¹ in 1507, a master of necromancy whose grimoire was never summoned to the Vault after his supposed death. Benjamin Carlton¹¹ reveals that Mathias astonishingly still lives, sustained by forbidden magic across five centuries. He operates in the shadows, connected to the Carltons' schemes, and represents the ongoing, embodied threat of the original sin that created the Arcanaeum. His survival reframes the entire political conflict as an active war rather than historical legacy.

A restoration master who fled Isidora Carlton¹²'s regime and has been living in hiding abroad. His gentle, eccentric appearance belies his deep knowledge of necromancy and the Arcanaeum's true nature. He orchestrates the intentional cracking of Kyrith¹ alongside Pierce⁶, treating it as necessary research rather than cruelty. His motives remain ambiguous: he claims to oppose Isidora¹², yet his methods are indistinguishable from the enemy's.

Pierce⁶'s mother and the current parriarch of House Carlton, the most powerful of the six families. She held Jasper⁷ captive for a decade and now maneuvers to marry her disgraced daughter Anthea¹⁴ to Dakari⁵, seeking to consolidate power. Her cold assessment of Kyrith¹'s deterioration as a strategic opportunity rather than a tragedy echoes the original parriarchs who murdered the Librarian¹ centuries ago. She represents the ongoing machinery of magical aristocracy that consumes the vulnerable to sustain its power.

A walrus-like academic from a liminal offshoot of the Winthrop family, he teaches first-year Arcanist Studies and becomes the first professor permitted to hold class inside the Arcanaeum. His enthusiasm for Kyrith¹'s firsthand historical knowledge borders on adorable, and he serves as comic relief while also embodying the academic community's general ignorance of the library's dark origins.

Pierce⁶'s sister, stripped of her position as heir and facing a forced political marriage as punishment. Her attack on Lambert³ with fire magic earns her permanent banishment from the Arcanaeum. She represents the brutal Darwinism of arcanist noble families, where failure is punished ruthlessly.

Jasper⁷'s great-aunt and the parriarch of Clan McKinley, the most insular of the six families. Her cane and hunched back speak to a youth spent as a magiball scorer. She arrives with two dozen clan members to retrieve Jasper⁷, her fierce protectiveness toward family contrasting with her willingness to acknowledge Kyrith¹'s role in his rescue.

Mathias Ackland¹⁰'s grandson who recruited Kyrith¹ from her life as a maid in London, flattering her with attention and promises. His bored expression as she screamed and struggled on the altar haunts her death reenactment. He appears only in the prologue and flashbacks but represents the archetype of charming betrayal she measures every Ackland against.