Once Upon a Time AU and Crossover Collection
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Focus: TV Shows Once Upon a Time, Since: 06-08-18
Founder: mycroft216 - Stories: 366 - Followers: 0 - id: 129765
AU's and crossovers of all kinds are welcome. Any pairing you happen to ship is acceptable as well. Works over 1k words are preferred but if they are under that limit they are not necessarily excluded from entry. English is the preferred language but other languages are also acceptable. Perfect grammar is not required but any story included must have decent grammar and be in an easily readable format. Formats that I do not consider easily readable are works whose chapters are in one long paragraph and those |
Times are a' changing by wailsofangels reviews
Set after Episode 19 of Season two of OUAT. Dean and Sam hear about a strange little town in Maine. There are no records except of a little boy who said his father went missing there...
Crossover - Supernatural & Once Upon a Time - Rated: T - English - Drama/Adventure - Chapters: 4 - Words: 4,952 - Reviews: 9 - Favs: 14 - Follows: 22 - Updated: 7/19/2013 - Published: 7/2/2013 - Dean W., Sam W., Emma S.
Welcome to Town by fangirling19967 reviews
Sam and Dean get a call from Bobby to look at a stretch of highway in Maine for a possible haunting. They get a surprise when they find a town in the middle of the "red zone". Will they find out Storybrooke's secret? Dean/Emma & Sam/Ruby
Crossover - Supernatural & Once Upon a Time - Rated: K+ - English - Supernatural/Fantasy - Chapters: 2 - Words: 4,506 - Reviews: 9 - Favs: 28 - Follows: 44 - Updated: 8/16/2013 - Published: 5/10/2013 - Dean W., Sam W., Emma S., Ruby L./Red Riding Hood
Blood Bank by say-when-swan reviews
Supernatural AU: Emma Swan and Killian Jones chose a life of hunting after the nefarious vampire known only as "Gold" murdered those dearest to them. They've tracked him to outside a sleepy town known as Storybrooke...
Crossover - Once Upon a Time & Supernatural - Rated: M - English - Angst/Adventure - Chapters: 3 - Words: 8,602 - Reviews: 9 - Favs: 10 - Follows: 26 - Updated: 4/4/2014 - Published: 2/14/2014 - [Emma S., Killian Jones/Captain Hook]
Once Upon A Supernatural by BeccaShannon
Emma and Regina need help with Storybrooke, Emma calls in her old friends Dean and Sam and their Angel, Castiel. But Emma and Regina get a shock when they go to meet the hunters to discuss the mission. Pairings: Dean/Castiel. Emma/Regina.
Crossover - Supernatural & Once Upon a Time - Rated: T - English - Humor - Chapters: 1 - Words: 1,900 - Favs: 8 - Follows: 4 - Published: 4/12/2016 - Dean W., Castiel, Emma S., Regina M./The Evil Queen - Complete
Angel in Storybrooke by Andromytta reviews
Castiel wakes up in Storybrooke, Maine with no grace and no memories.
Crossover - Supernatural & Once Upon a Time - Rated: T - English - Fantasy/Friendship - Chapters: 5 - Words: 9,120 - Reviews: 4 - Favs: 20 - Follows: 13 - Published: 9/25/2016 - Dean W., Castiel, Emma S., Regina M./The Evil Queen - Complete
His Dad's A Hero by SocietiesMisFitWriter reviews
When Henry asks about his dad, Emma freaks out and lies. How could she tell the kids that though she didn't believe in his fairy tales, she knew with out a doubt that Monsters where real, and that his dad was of all things, a Hunter, a Jerk in hero's clothing. OneShot
Crossover - Supernatural & Once Upon a Time - Rated: K+ - English - Angst/Family - Chapters: 2 - Words: 2,229 - Reviews: 18 - Favs: 51 - Follows: 23 - Updated: 3/27/2017 - Published: 7/3/2012 - Dean W., Emma S. - Complete
Once Upon a Hunter by OUATlover2000 reviews
Emma was adopted by the Winchester's when she was 2 months old, and after Mary's death, Emma was raised hunting with her father and brothers. When she was 14, John when missing, leaving 19 year old Dean to take care of his siblings. He followed in his fathers footsteps and continued to hunt, while searching for him.
Crossover - Supernatural & Once Upon a Time - Rated: T - English - Supernatural/Family - Chapters: 8 - Words: 13,572 - Reviews: 9 - Favs: 40 - Follows: 42 - Updated: 2/14/2018 - Published: 1/19/2018 - Sam W., Dean W., John W., Emma S.
Once Upon a Supernatural Time by all-mirth-no-matter reviews
Henry Mills needs help convincing his new-found mother, Emma Swan, to believe in magic so she can break Storybrooke's curse. Could Dean and Sam Winchester be just the help he needs to get Emma to believe? Or will they also need some convincing? Dean's dealt with a lot of things - demons, angels, witches, werewolves - but magic may be a bit out of his belief system.
Crossover - Supernatural & Once Upon a Time - Rated: T - English - Adventure/Romance - Chapters: 68 - Words: 257,537 - Reviews: 731 - Favs: 486 - Follows: 484 - Updated: 8/13 - Published: 7/30/2013 - [Dean W., Emma S.] [Sam W., Ruby L./Red Riding Hood]
Creevey's Corridor by Panzerbelle reviews
AU. Voldemort's war is over and the world has had time to rebuild. In that time Regina Mills, one of Hogwart's recent graduates, has become the new Dark Arts Professor. Welcome to class.
Crossover - Harry Potter & Once Upon a Time - Rated: T - English - Adventure/Horror - Chapters: 1 - Words: 6,146 - Reviews: 8 - Favs: 27 - Follows: 13 - Published: 7/12/2013 - Complete
The Raven's Swan by inkheart9459 reviews
Emma is the new Defense Against the Dark Arts teacher and after being a freelance auror, all she wants in a little peace and quiet. Between the potions master, Regina, and a strange phenomenon causing some of the students to fall asleep and never wake up again, she's not going to get a break.
Crossover - Harry Potter & Once Upon a Time - Rated: T - English - Mystery/Drama - Chapters: 4 - Words: 24,898 - Reviews: 31 - Favs: 196 - Follows: 76 - Published: 4/20/2014 - [Emma S., Regina M./The Evil Queen] Henry Mills, Ruby L./Red Riding Hood - Complete
The Evil Queen and The Half Blood Prince by SilverCat64 reviews
Facing recovery after a serious injury Minerva McGonagall calls upon her niece Regina Mills to replace her in Hogwarts till she recovers. once there Regina will face all Hogwarts has to offer and one very dark sarcastic head of Slytherin. Will two helpless souls who face the similar pains find solace in the other or will they bash heads because they are too alike to ever happily be
Crossover - Harry Potter & Once Upon a Time - Rated: K+ - English - Humor/Romance - Chapters: 16 - Words: 17,057 - Reviews: 15 - Favs: 76 - Follows: 46 - Updated: 9/28/2015 - Published: 8/6/2015 - Severus S., Minerva M., Regina M./The Evil Queen - Complete
Turn Back the Hourglass by RegalStarlight reviews
Emma is a famous but lonely Auror who was found as a baby with a time turner around her neck. Regina is a former dark witch who was banished to the muggle world as punishment for her crimes. Everyone thinks they were the worst of enemies, the "Savior" and the "Evil Queen". But the truth is a bit more complicated, and everything changes when Henry gets his Hogwarts letter. SQ.
Crossover - Harry Potter & Once Upon a Time - Rated: T - English - Family/Romance - Chapters: 11 - Words: 19,360 - Reviews: 23 - Favs: 66 - Follows: 69 - Updated: 3/10/2016 - Published: 7/14/2015 - [Emma S., Regina M./The Evil Queen] Henry Mills, Rumpelstiltskin/Mr. Gold - Complete
A Land Without Magic by Model Builder reviews
Two years after the abrupt defeat of You-Know-Who in the UK, the American Wizarding Community's sense of complacency was shattered by an event known as the 10/22/83 Maine Incursion. Who are the Invaders from the Enchanted Realms and what do they want? And will a ten-year-old muggle boy who claims to have been inside the Incursion be able to answer these and other questions?
Crossover - Harry Potter & Once Upon a Time - Rated: T - English - Adventure/Fantasy - Chapters: 25 - Words: 116,791 - Reviews: 66 - Favs: 50 - Follows: 56 - Updated: 3/22/2016 - Published: 3/15/2015 - Complete
A Town Full of Magic by Key of Magic reviews
Harry overhears Dumbledore and McGonagall talking about a Wizard of Oz... but what could that mean? Of course he has to look into it, which causes him, Ron, and Hermione to get sucked up through a portal and land in a town called Storybrooke, where all the fairy tale characters exist. And it seems like the Wizard of Oz is attacking there. But can they save Storybrooke and get home?
Crossover - Harry Potter & Once Upon a Time - Rated: K+ - English - Adventure/Friendship - Chapters: 15 - Words: 16,234 - Reviews: 29 - Favs: 43 - Follows: 32 - Updated: 4/27/2016 - Published: 4/11/2016 - Complete
The Queen at Hogwarts by EmmaCD092900 reviews
Regina Mills is somehow transported to another realm where witches and wizards are taught magic at a castle called Hogwarts. But when she meets three wizards who are having their own problems with a certain dark lord and an evil school teacher, the evil queen is going to be in for the ride of her life is she wants to help them.
Crossover - Harry Potter & Once Upon a Time - Rated: T - English - Fantasy/Mystery - Chapters: 13 - Words: 10,406 - Reviews: 103 - Favs: 100 - Follows: 124 - Updated: 6/8/2016 - Published: 12/22/2014
Once Upon A Hogwarts by nothinparticular reviews
How about we throw our favorite OUAT characters into a HP setting? The Triwizard Tournament is hosted at Hogwarts and Regina - ever the dutiful pureblood - puts her name into the Goblet of Fire. But taking part in the games - and surviving - won't be her only problem for very long. Love doesn't pick who you want it to and Lord Voldemort is hungry for power. Regina/female OUAT char
Crossover - Once Upon a Time & Harry Potter - Rated: M - English - Romance/Angst - Chapters: 3 - Words: 10,729 - Reviews: 20 - Favs: 24 - Follows: 32 - Updated: 9/5/2016 - Published: 3/17/2016 - Severus S., Regina M./The Evil Queen, Belle/Lacey, Elsa
Once Upon A Wizard by xXWinterprinceXx reviews
All Emma ever wanted was a family to love her. Then a stranger appears to take her to a place of magic, where she meets the orphan boy Killian, among with many other friends... and foes. OUAT/HP Crossover! Eventual CaptainSwan, Snowing, OutlawQueen and others
Crossover - Harry Potter & Once Upon a Time - Rated: T - English - Friendship/Romance - Chapters: 12 - Words: 36,665 - Reviews: 22 - Favs: 31 - Follows: 51 - Updated: 11/8/2016 - Published: 10/16/2015 - Emma S., Killian Jones/Captain Hook
Once Upon a Potter by HarmonyDrarry reviews
Instead of ending up in Camelot, Emma ends up in Little Whining, where she meets Harry Potter, Hermione Granger, etc. Harmony and Captain Swan.
Crossover - Harry Potter & Once Upon a Time - Rated: T - English - Drama/Romance - Chapters: 3 - Words: 1,697 - Reviews: 9 - Favs: 41 - Follows: 34 - Updated: 1/24/2017 - Published: 2/20/2016 - [Harry P., Hermione G.] [Emma S., Killian Jones/Captain Hook]
Brightest witch of her age meets the Savior by darkwolflovesgirls reviews
COMPLETE! Emma/Hermione paring, eventual Regina/Narcissa pairing, rated M Hermione and Narcissa chase after escape prisoners from Azkaban, following them to Storybrooke. Re-written as a one-shot.
Crossover - Harry Potter & Once Upon a Time - Rated: M - English - Chapters: 1 - Words: 5,922 - Reviews: 7 - Favs: 61 - Follows: 61 - Updated: 7/18/2018 - Published: 3/31/2017 - [Hermione G., Emma S.] [Narcissa M., Regina M./The Evil Queen] - Complete
The Perks of a Brilliant Bet by Camikingst reviews
Hogwarts AU. Emma Swan, Lena Luthor, Kara Danvers and Belle French, are the new female prefects of Hogwarts, all excellent students and the most promising witches of their age, until they start sharing the same Prefect's bedroom and their friendship becomes a pain for professors Mills, Gold and Grant since they get involved in a bet between the girls.
Crossover - Once Upon a Time & Supergirl - Rated: M - English - Romance/Family - Chapters: 6 - Words: 23,547 - Reviews: 19 - Favs: 21 - Follows: 40 - Updated: 4/14/2018 - Published: 3/17/2017 - Emma S., Regina M./The Evil Queen, Kara D./Supergirl, Cat G.
Once Upon Avengers by Steve993 reviews
When battle with a supervillain with the ability to create portals goes wrong the Avengers, Captain America, Thor and the Hulk are whisked to another world the world of Neverland as the trio join with the Saviour Emma Swann and her family to rescue her son Henry. Set after the Avengers but before Phase 2 and during the Pan Arc of OUAT.
Crossover - Once Upon a Time & Avengers - Rated: T - English - Humor/Adventure - Chapters: 7 - Words: 77,793 - Reviews: 22 - Favs: 29 - Follows: 37 - Updated: 7/19 - Published: 4/21/2018 - Emma S., Regina M./The Evil Queen, Captain America/Steve R., Thor
Emma at Hogwarts by Gemma Leigh S
What would happen if Harry Potter was real in the OUAT world? What happens when Emma gets a letter for Hogwarts? What happens to the curse when the saviour believes? On hold.
Crossover - Harry Potter & Once Upon a Time - Rated: T - English - Chapters: 4 - Words: 4,311 - Favs: 8 - Follows: 13 - Published: 5/28/2018 - Hannah A., OC, Emma S., Ingrid/Snow Queen
Monster Beneath My Bed by Jet MacLeod reviews
How far would someone go to get help for a girl that doesn't respond? Enter everyone's favorite CDA Agent 0001, Roz. She's determined to not let one problematic child fall through the system. But, when Regina agrees to help, she doesn't realize that she isn't the going to be the "real" monster. Monster's Inc Crossover, but a OUAT fic. Taken liberties w/ timelines. Trigger warnings
Crossover - Once Upon a Time & Monsters Inc. - Rated: M - English - Drama/Hurt/Comfort - Chapters: 14 - Words: 32,254 - Reviews: 5 - Favs: 13 - Follows: 16 - Updated: 5/29/2018 - Published: 5/11/2018 - Roz, Emma S., Henry Mills, Regina M./The Evil Queen - Complete
Back In Red by Chardineno reviews
Emma Swan hanged up her days as a ranger long ago. But when a threat a raises, in Storybrooke. She has to get her team back together again. A.U features SwanQueen, Jungle fury and SPD.
Crossover - Power Rangers & Once Upon a Time - Rated: T - English - Sci-Fi - Chapters: 6 - Words: 27,316 - Reviews: 10 - Favs: 20 - Follows: 21 - Updated: 6/22/2018 - Published: 7/4/2017 - Theo M., Lily C., Emma S., Regina M./The Evil Queen - Complete
Once We are Descendants by Number Ten reviews
When Mal of Auradon and Crystal of Storybrooke mix the wrong spells together, both end up accidentally opening a portal and sending the students of Auradon to Storybrooke. With no other choice but to work together, the teens meet their perspective "parents" of the small town. Some fit in easily, but some don't. What happens when a villainous character wants to use this their way?
Crossover - Once Upon a Time & Descendants, 2015 - Rated: K+ - English - Adventure/Fantasy - Chapters: 69 - Words: 141,816 - Reviews: 189 - Favs: 164 - Follows: 194 - Updated: 19h - Published: 12/11/2017 - Emma S., OC, Mal, Carlos