Fanfic / Light's Song

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Light's Song is a crossover between The Owl House and Supernatural by PitBullsRlife, in which Luz is the much younger paternal half-sister of Sam and Dean. Raised by Bobby after her mother's murder when she was a toddler, she ended up dragged into a number of her brother's misadventures, despite their best attempts to keep her away from the chaos of being a Hunter. After Bobby's death, she manages to find her way to the Demon Realm, which is actually less inhospitable to her than Earth, as the constant threats to her family line can't reach her there, giving her a chance to gain a new home and family. Of course, that doesn't mean that things are uneventful...

This fic is completed as of September 6th, 2025.

Beware of spoilers.

Light's Song contain examples of:

• Abuse Mistake: When Eda first meets the twitchy and paranoid Luz, who still bears bruises from a fresh beating at the hands of a Leviathan after Bobby’s funeral, the witch immediately suspects the poor kid ran away from her family because they wouldn't stop mistreating her and offers to let her stay at the Owl House out of compassion.
• Achievements in Ignorance: According to Word of God, during the Mario Kart tournament in Chapter 97, Gus got last place in every round except Rainbow Road of all courses, where he got first place.
• Adaptational Angst Upgrade:
  • Thanks to being a Winchester in this story, Luz has been through a lot more trauma than her canon self by the time she reaches the Isles; Bobby's death just before the story starts is just the tip of the iceberg.
  • She also ends up even harder on herself about inadvertently helping Belos since she blames her family curse for causing pain to her new loved ones.
• Adaptational Badass: Luz is skilled with knives, having been trained by Bobby and her brothers. She also retains the ability to use glyphs after her boost from Papa Titan wears off.
• Adaptational Context Change: Luz still has a personal issue she's dealing with on the day of the Brawl; it's just learning the truth of her mother's death that is bothering her here, not it being the anniversary of her father's death.
• Adaptational Early Appearance: Stringbean hatches significantly earlier in this AU.
• Adaptational Name Change: Due to being adopted by Jody Mills here, Vee is "Vee Mills" rather than "Vee Noceda".
• Adaptation Expansion: The scene where Hunter cuts his hair in the middle of the night, with Willow ending up helping him fix it, is expanded on here.
• Affectionate Nickname: Sam and Dean tend to call Luz "the baby", while Crowley calls her "princess".
• Alternate Self: While on Earth, Gabriel sends the Hexsquad to the canon universe, where they meet their versions from that world.
• Big, Screwed-Up Family: The Winchesters, as usual. A major part of Luz's Character Development is to understand and acknowledge how toxic their current dynamic is and that she and her brothers need to work on it instead of just falling into the same pattern of hurting each other thanks to their father's toxicity affecting their relationships — triggering her Palisman's hatching.
• Bizarre Taste in Food: When Dean makes lasagna for the group, Gus puts mayonnaise on his for some reason.
• Breaking the Cycle of Bad Parenting: Bobby Singer grew up with an abusive father who would beat him and his mother. One day, Bobby shot and killed his father to protect his mother and burned his father's body in a shed, to his mother's horror. Because of his experience with his father, he was afraid to have children himself and was against having a child with his wife before she died. Eventually, Bobby would be tasked with raising the infant girl named Luz Noceda. Bobby loved Luz as his own daughter and did everything he could to raise her to be a healthy and happy person. Unfortunately, because both of them were hunters, they had to deal with danger daily, but he did everything he could to shield her from danger, train her to defend herself, and give her a normal life, and he was shown to be loving and supporting towards her growing up, making sure Luz was is fed and cared for. Bobby's death devastated Luz, and throughout the story, she respected his memory and greatly missed him. Luz noted that despite Bobby's fear of being a father and not wanting children because of his abusive background, he was a loving father to her.
• Brought Down to Normal: While Castiel can travel to the Isles due to his vessel's soul having passed on, when normally an angel would be ejected from their vessel if they tried to do so, he is unable to access his Grace while there, leaving him on the level of a human.
• But Now I Must Go: Gabriel decided to go with the Collector when he returns to space, since he can survive in space and he needs a new friend with Papa Titan gone, and who better than his young cousin.
• Canon Welding: In this AU the Archivists are the creations of Amara, God's sister.
• Came Back Strong: In addition to her canon temporary empowerment, Luz retains traces of Titan magic in her system post-revival, allowing her to still use glyph magic even without Papa Titan around.
• Children Are Innocent: When she was a child, Luz once stumbled onto Dean's "Busty Asian Beauties" porn site. She didn't seem too concerned with the content, and cared more about learning what the word "busty" meant.
• Composite Character: Bobby Singer takes the mantle of Luz's father figure whom she utterly adored, tragically dying in the hospital and leaving her devastated.
• Conditioned to Accept Horror: Being a member of the Winchester clan in this AU, Luz has been through a lot, and gotten used to it. Just for starters, she's died dozens of times if the time loop is counted, and on Palisman adoption day, she admits that she stopped having long-term goals years ago because she accepted it as a given that she wouldn't survive to adulthood.
• Conspiracy Theorist: Jacob Hopkins, as in canon. After he attacks Hunter at a supermarket, believing that he's a demon, an employee mentions that he's banned from the store for attacking said employee with a baguette, believing that he's a cyborg drone for the Martians due to his cochlear implant.
• Crossover Relatives:
  • In this story, Luz is Sam and Dean's younger half-sister, who is on their father's side.
  • The Archivists are the creations of Amara, God's sister, thus making them "cousins" to Cass and the other Angels.
• Cute Little Fangs: Luz gets more prominent canines after being revived and temporarily Titan-empowered.
• Dark and Troubled Past: Luz's mother was murdered when she was two by Zachariah (with her being left alone in the house with Camila's corpse for days), her first and only time meeting John was when he found out about her existence and kidnapped her when she was seven shortly before he died, when she was nine Hell Queen tortured her to death (including impaling her through the shoulder and causing a wound that never fully healed, even with Castiel's best efforts at it), as part of a plot to hurt her brothers, she was in the time loop with Sam and remembered the loops like he did, dying at least forty times in that instance alone... Honestly, it's a miracle that Luz is still sane, or capable of happiness at all, given what she's been through, a sentiment that Amity and Willow express In-Universe after seeing the Hell Queen memory.
• Deader than Dead: According to the author, Belos damaged his soul so badly that he causes it to essentially rot away to nothing when he dies, so he doesn't get any afterlife.
• Death by Adaptation: Camila Noceda is killed when Luz is a toddler by Zachariah, as part of the Angel's plan to turn Luz into a Sacrificial Lamb to drive the Winchester brothers apart and fulfill their roles in the Apocalypse.
• Death World: Despite the canon Boiling Isles being this from the perspective of Earthlings, the fact that this is the Earth from Supernatural means that it's more dangerous by comparison with all the monsters running around, particularly for Luz due to her Winchester blood, as most if not all monsters cannot cross over to the Demon Realm, thus rendering most of the threats her Doom Magnet status can throw at her incapable of reaching her.
• Demonic Possession: Allen Fischer is possessed by Belos instead of Hunter.
• Discard and Draw: When Luz was revived by Papa Titan the Titan magic washed out the Grace from her system, since they don't really coexist well, but that left traces of Titan magic in her as a result, letting her power her own glyphs even with Papa Titan's spirit gone.
• Doom Magnet: As in canon, being a Winchester means that you can barely go five feet without running into a dangerous monster and other bullshit, especially if there's more than one around for too long. Thankfully, the fact that most, if not all of the monsters from Earth are unable to exist on the Isles due to it being a realm not created by God/Chuck (for instance, angels and demons are immediately ejected from their vessels if they try to cross a portal due to the ambient magic interfering with their ability to suppress their vessel's soul) means that it's actually safer there for Luz than on Earth, despite the Demon Realm canonically being a Death World, because there's fewer threats that it can weaponize.
• Excellent Judge of Character: Luz's instinct generally points at somebody being trustworthy, such as how she immediately took a shine to Castiel yet never liked his siblings.
• Failed a Spot Check: The wannabee hunter that kidnapped Vee, believing her to be a human realm shapeshifter, completely missed that she was wearing a silver bracelet (shapeshifters do not like silver, something Jody wastes no time in pointing out after Vee is rescued).
• Fan Art: One of the reviewers, CMR Rosa, not only commissioned a cover picture, but a whole gallery folder for character pictures from this story here.
• From the Mouths of Babes: In one of the memory images Amity and Willow go into, a four-year old Luz goes to use the computer, and sees a porn site that Dean had left up, "Busty Asian Beauties". Later, she asks Sam what "busty" (since she couldn't read the other words yet) means, and he bribes her with an Oreo into asking Bobby what it means, getting Dean in major trouble, while Luz is clearly oblivious to the greater context.
• Full-Name Ultimatum: Jody gives one to Dean when they reunite in Gravesfield over her anger at being Locked Out of the Loop, but since she doesn't know his middle name until Luz tells her she initially calls him "Dean Middle Name Winchester".
• Go-Karting with Bowser: Crowley regularly visits Luz in order to have Mario Kart tournaments. If the other kids quickly shrug it off and start participating, the grown ups keep freaking over the whole deal.
• Happily Adopted:
  • After Camila's death, due to a combination of Sam and Dean being busy with hunts and wanting to limit the Winchester Doom Magnet curse around her as much as possible, Bobby was Luz's main parental figure until his death.
  • Jody ends up taking Vee in, and the affection is clearly mutual.
  • Luz and Eda bond a lot quicker than in canon, and before too long, Eda had all but officially become Luz's new parental figure. And then later she officially adopts her.
• Hope Is Scary: Luz stopped having long-term goals sometime before ending up on the Isles because she came to believe that she wouldn’t make it to adulthood due to the family curse. During Palisman's adoption day, she has a breakdown over the idea that she COULD have a future.
• In Spite of a Nail: The Hexaquad ends up living in Camlia's old home in the aftermath of the Day of Unity.
• Is That Cute Kid Yours?: Due to the age gap of twenty years between them and the family resemblance, Dean has been mistaken for Luz's father instead of her older brother more than once.
• Innocent Bigot: Henry is very much a product of the fifties, as he assumes Hunter's embroidery project actually belongs to Luz and is stunned at the idea of having a granddaughter born out of wedlock courtesy of casual sex.
• Kick the Dog: When Luz was seven years old, a classmate taunted her that her birth father killed himself because he was ashamed of having a freak for a daughter. The Park family is utterly aghast to learn of the anecdote.
• Klingons Love Shakespeare: Crowley is surprisingly into playing Mario Kart with Luz. At one point, he even wagers the address where Sam is currently hiding on a rematch with Luz.
• Like Father, Unlike Son: Henry Winchester, from both sides of the equation — he was saddened by a gay man's murder while his dad was dismissive out of homophobia, and is nothing short of ashamed and horrified by the man his son John grew up to be.
• Locked Out of the Loop:
  • Sam, Dean, Cas, and Bobby all kept from Luz the fact that she was born due to angelic intervention solely to be a Sacrificial Lamb in the plans for the Apocalypse. Later, Dean keeps the fact that their safehouse in Gravesfield used to be Camila's home from her.
  • Sam and Dean are terrible at keeping Jody in the loop. For instance, the whole reason that Vee could replace Luz is that neither of the brothers told her that Luz was in the Boiling Isles. When they reunite in Gravesfield, she calls Dean on it, and later calls Sam on it too.
  • Hunter didn't know anything about the Basilisk project before he met Vee. He suspects that it was too close to Belos's plans for the Draining Spell, so he kept it secret from his "nephew". He even claimed the reports of the basilisk attack at Hexside were a lie.
• A Mind Is a Terrible Thing to Read: Gus gets nightmares of what he saw in Belos's memories.
• Mistaken for Pedophile: Discussed. When Castiel first introduces himself to Dean and Luz, he offers her a few packs of fruit snacks. Dean quickly smacks them out of his hand because the angel isn't aware of how creepy it would make him look. Castiel only makes things more awkward by explaining that he saw Luz eating the same kind of candy in the car, revealing that he was spying on them earlier.
• Morality Pet: Luz serves as one for Crowley. Not only is he the first one Luz manages to contact while in the Demon Realm, he genuinely seems to have her best interests at heart, and never manipulates her the same way he does with Sam and Dean.
• Must Make Amends: After meeting someone all but said to be The Titan in the In-Between, Gabriel is convinced by them to apologize for Luz's The Many Deaths of You when he was trying to torture Sam. He first tries this by getting Dean and Castiel out of purgatory, namely by pushing Dean into a portal into the Demon Realm with Castiel following after, thinking Luz would appreciate having her brother back. The Titan told him he needs to actually let her know he did something and apologize to her directly, so he instead appears before Luz after Henry is fatally wounded facing Abaddon and saves his life. While Luz notes she's never gonna really like Gabriel after everything, she at least appreciates him saving her grandfather.
• Mutually Exclusive Magic: Titan magic and Grace can't really coexist well, which is what causes the Discard and Draw with Luz after she is revived by Papa Titan.
• Noodle Incident: Luz mentions some non-canon events from back in the Human Realm that she doesn't fully elaborate on, such as being cursed by a sock puppet to speak only in haiku or the book fair where she and Dean were terrorized by Dr. Seuss characters.
• No-Sell:
  • For some reason, the Collector's stars don't turn Castiel into a puppet, and they're unable to even stick to his skin.
  • Angel magic doesn't work on Palismen apparently, so when Gabriel sends Luz and the Hexsquad to the canon universe, their Palismen are left behind.
• Place Beyond Time: The In-Between Realm is beyond the normal flow of time, which is why the Collector is still a child even after centuries sealed away in it.
• Point of Divergence: Luz's memories are damaged. In fact, the memory photos were soaked in water instead of burned.
• Practically Different Generations: Luz is twenty years younger than her bothers, and Dean was often mistaken for her father.
• Racist Grandma: Luz hesitates about growing closer to Henry, admitting to her friends that a man raised in the fifties is unlikely to enjoy being saddled with a half-white, bisexual granddaughter. Fortunately, Henry is more Innocently Insensitive than genuinely prejudiced.
• Related Differently in the Adaptation: With Camila dead here, Luz and Vee don't become adoptive sisters, though they do still end up related to each other. Namely due to Vee being adopted by Jody Mills, making her "Vee Mills" and Luz's cousin rather than sister.
• Right for the Wrong Reasons: While the Hunter that kidnaps Vee is right Vee isn't human and is replacing the real Luz, it's because he thinks that she's a human realm shapeshifter, despite the fact that they can't stand silver and she's clearly wearing a silver bracelet.
• Sacrificial Lamb: It's eventually revealed that Luz herself was meant to be this, the angels manipulating Camila into sleeping with John and having her, and then having Zachariah kill Camila when Luz was a toddler so that Luz would grow up with Sam and Dean, only to get tortured to death by Hell Queen in order to drive a wedge between the brothers and get them to accept their roles in the Apocalypse, which was foiled when Castiel, who had no idea of the plan at the time, resurrected her.
• Spared by the Adaptation: Henry is saved from his canonical death at the hands of Abaddon thanks to Gabriel, Gabriel having done so to make it up to Luz for accidentally traumatizing her while he was tormenting Sam, figuring saving her grandfather's life was a good way of doing so.
• Stranger in a Familiar Land: When Luz ends up back on Earth after the Day of Unity, she finds that she's almost as out-of-place there as her witch friends are.
• Took a Level in Kindness: After befriending the Titan, Gabriel has become nicer, even saving Henry's life as a way of apologizing to Luz about accidentally traumatizing her.
• Tranquil Fury: When a young Luz asks Bobby what the word "busty" means after stumbling onto one of Dean's porn sites, Bobby does his best to hold back his rage towards Dean.
  Bobby: You better run, boy.
  Dean: Come on, Bobby. We both know you'd never shoot me.
  Bobby: With live ammo? 'Course not. Rock salt, on the other hand? (cocks his shotgun) It'll sting like heck, but it won't do ya no real harm. You better run, ya idjit.
• Trauma Button:
  • Luz almost suffers a panic attack when she first meets Eda's sister because the name Lilith reminds her of the Hell Queen, and insists to call her Lily.
  • Dean also was so deeply horrified by Hell Queen's assault against Luz that when Jacob Hopkins rants he's going to abduct and torture Hunter, the man punches Hopkins into unconsciousness and calls the police.
• Troubling Unchildlike Behaviour: Luz tends to unnerve people with her extreme desensitization to violence and the sheer casualness letting her speak of horrendous creatures and events in her previous life.
• Unfinished Business: After her murder, Camila sticks around her old house for a while to try and make sure that Luz is safe. When Dean shows her that Luz is happy and (relatively, given her Winchester genes) safe with Bobby, she passes on peacefully.
• Voice of the Legion: After Luz rips Belos out of the Titan's heart, the Titan's voice overlays hers and calls him out for unnatural his existence is and how he's an abomination in the eyes of the God he claims to serve.
• Wound That Will Not Heal:
  • Despite all of Castiel's efforts, Hell Queen's wound to Luz's shoulder just will not fully heal.
  • Even after Papa Titan heals the internal injury when reviving her, the scars on her skin remain.