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Into the Past by thanatoslordofdarkness reviews
It's just a normal day, when Kara is suddenly pulled out of her world and thrown into one without her powers and told that the only way to return home to the people she loves is to Save a mysterious witch, what will the blonde Kryptonian be willing to do to return to the one she loves
Crossover - Merlin & Supergirl - Rated: T - English - Adventure/Romance - Chapters: 59 - Words: 63,210 - Reviews: 138 - Favs: 96 - Follows: 120 - Updated: 6h - Published: 3/23/2018 - Morgana, Merlin, Kara D./Supergirl, Lena L.
The Lost Princess of Camelot by lilyflower83 reviews
A year and a half after their wedding, Merlin discovered that he was pregnant with the their to the throne of Camelot. Morgana is a constant rlin and Arthur must come up with a way to save their baby. They send her away to protect her, but thankfully she will return on her 18th birthday along with her betrothed.
Crossover - Harry Potter & Merlin - Rated: K - English - Chapters: 2 - Words: 1,610 - Reviews: 1 - Favs: 6 - Follows: 5 - Published: 4/10
Malédiction by From Alagaesia reviews
Arthur lève son épée mais il est trop tard, le Chevalier de l'Ombre a lancé ses deux Malédictions. L'épée fend l'air, plonge dans le casque de la Créature de l'Ombre. Il tombe en même temps que son armure. Déjà, des nuages se massent au dessus du Prince et de son serviteur. Deux éclairs blancs assourdissants en sortent, les frappent sous le regard des chevaliers de Camelot. (Yaoi!)
Crossover - Harry Potter & Merlin - Rated: M - French - Romance/Fantasy - Chapters: 3 - Words: 4,280 - Reviews: 5 - Favs: 4 - Follows: 10 - Updated: 4/10 - Published: 2/10 - [Harry P., Draco M.] [Merlin, Arthur]
The Sorcerer and the King by QueenAly300 reviews
After a spell to put himself to sleep until Arthur's return, Merlin finds himself reborn as Harry Potter. It is time for the Once and Future King and the Greatest Sorcerer in the World to return and rebuild the wizarding world.
Crossover - Harry Potter & Merlin - Rated: T - English - Adventure/Friendship - Chapters: 6 - Words: 17,571 - Reviews: 55 - Favs: 169 - Follows: 235 - Updated: 4/7 - Published: 12/30/2019 - Harry P., Merlin, Arthur
Waiting for destiny by Merlin242 reviews
It's been 1500 years and Merlin is still watching and waiting for his king to return never getting involved, but when there is a massive spike in his magic, can he just lurk in the shadows any longer? Merlin becomes the new defence against the dark arts teacher at Hogwarts under the name of Mryddin Emrys join him as he seeks to protect the old world and the new.
Crossover - Harry Potter & Merlin - Rated: T - English - Adventure/Mystery - Chapters: 14 - Words: 28,760 - Reviews: 114 - Favs: 251 - Follows: 352 - Updated: 4/7 - Published: 1/23/2016
Where Do We Go From Here by LilyRose9 reviews
Morgana le Fay emerges from her millennia long stay in the Crystal Caves courtesy of Merlin to make an impact on the world, both Wizarding and Mundane, starting with the life of one young Harry Potter, The-Boy-Who-Lived.
Crossover - Harry Potter & Merlin - Rated: M - English - Drama/Family - Chapters: 19 - Words: 107,342 - Reviews: 146 - Favs: 610 - Follows: 834 - Updated: 4/6 - Published: 8/1/2018 - Harry P., Sirius B., Morgana, Merlin
In the Hands of a Prophesised Vice by 4Eirlys reviews
Rewrite of Merlin's Guide as to Why You Shouldn't be Voldemort. When Voldemort resurrects Morgana to help with his plans, the Old Religion cries out in agony to Merlin, ordering him to restore the balance. With the help of friends old and new Merlin must return to Hogwarts to protect the children. But nothing is as it seems and as always, it isn't going to be easy...
Crossover - Harry Potter & Merlin - Rated: K - English - Adventure/Humor - Chapters: 22 - Words: 101,122 - Reviews: 199 - Favs: 291 - Follows: 458 - Updated: 4/6 - Published: 1/20/2018 - Voldemort, Luna L., Morgana, Merlin
Her Knight in the shinig Armor by LongMayWeReign reviews
I got inspired by a few videos I watched about Sansa and Arthur. Sansa Stark is the finace of King Joffrey who treats her badly. Ser Arthur Pendragon member of the Kingsguard who despises the Kings behavior. He is also the last family member of the House Pendragon who ruled Westeros long before the Tagaeryens. Threatened by his enimies, is this love able to survive? Sansa/Arthur
Crossover - Merlin & Game of Thrones - Rated: M - English - Romance/Drama - Chapters: 3 - Words: 1,992 - Reviews: 2 - Favs: 8 - Follows: 6 - Updated: 4/5 - Published: 3/9/2017
A Mingling of Magics: The Legacy of Merlin by Astraea802 reviews
In the fall of 2010, Dave Stutler, heir to Merlin's power, tries to escape his destiny. Then his ring had to go and summon Merlin from the past! Along with Miles, a secretive young wizard also summoned by the ring, can the three sorcerers face the demons from their past and save the world? AU, Post-Sorcerer's Shadow, time travel, Avalon High crossover, reincarnation.
Crossover - Merlin & Sorcerer's Apprentice, 2010 - Rated: K+ - English - Friendship/Fantasy - Chapters: 17 - Words: 67,533 - Reviews: 77 - Favs: 67 - Follows: 96 - Updated: 4/4 - Published: 1/6/2012 - Merlin, Dave S.
Of Saffron and Magic by YaoiLord reviews
Merlin became first aware of the girl on his visit to Scotland. It was a clueless little girl with unruly, bright red hair and wearing patched clothes. Merlin became certain she was special when he watched as she made a single purple bud of flower bloom under her palm.
Crossover - Supernatural & Merlin - Rated: T - English - Family/Drama - Chapters: 1 - Words: 11,571 - Reviews: 3 - Favs: 2 - Follows: 1 - Published: 4/4 - [Rowena M., Sam W.] Merlin - Complete
Interludio by MerVonZeit reviews
Las profecias son algo inevitable, y siempre comienzan con algo igual de inevitable. La resurreción del mago tenebroso pronto llegará. La hora más oscura de Albion está cerca. Harry tiene una profecia que cumplir, pero no será el unico con un destino escrito en piedra, Arthur está de regreso, pero antes de poder actuar, tiene cosas que entender. Primera parte de serie.
Crossover - Harry Potter & Merlin - Rated: K - Spanish - Fantasy - Chapters: 11 - Words: 27,846 - Reviews: 7 - Follows: 1 - Updated: 4/2 - Published: 2/27 - Harry P., Merlin, Hermione G., Arthur
I am who I am But not who I was nor who I will be by Dragon Queen - Renne Dragon reviews
At the end of their 4th year at Hogwarts, the trio finds a timed boy at the edge of the forest. Who is he? What is he doing in the forbidden forest? And what happens when the dark lord finds a new and powerful ally.
Crossover - Harry Potter & Merlin - Rated: K+ - English - Fantasy - Chapters: 4 - Words: 4,504 - Reviews: 6 - Favs: 16 - Follows: 23 - Updated: 4/2 - Published: 2/7 - Harry P., Merlin
Viaje a Camelot by BrujaBlanca88 reviews
Mientras están en El País de Nunca Jamás el grupo cae por un portal y se encuentra en Camelot donde Regina tiene fuertes conexiones. Cruce entre Once Upon A Time y Las Aventuras de Merlin. Establecido en la tercera temporada de Once Upon A Time y la segunda de Merlin.
Crossover - Merlin & Once Upon a Time - Rated: T - Spanish - Family/Friendship - Chapters: 11 - Words: 3,375 - Reviews: 1 - Favs: 3 - Follows: 4 - Updated: 4/2 - Published: 3/12/2018 - Morgana, Regina M./The Evil Queen - Complete
The Dragon, The Sorcerer and The Witch Out of Time by maisey2k10 reviews
Finding herself one thousand years back in the past and in the legendary Kingdom of Camelot was something Hermione had not expected. With no possible way back to the future, Hermione had no option but to form a new life for herself, and hopefully without changing the timeline. Unfortunately, matters of the heart cannot be controlled. Hermione x Arthur pairing.
Crossover - Harry Potter & Merlin - Rated: M - English - Romance/Friendship - Chapters: 33 - Words: 183,318 - Reviews: 576 - Favs: 528 - Follows: 663 - Updated: 3/29 - Published: 8/12/2019
Merlin: A History by Inwff reviews
Merlin's experiences at Hogwarts through the years as he waits for Arthur to return. Involving BAMF!Merlin, grey!Dumbledore, lots of commas (sorry!) and our favourite warlock saving the again!
Crossover - Harry Potter & Merlin - Rated: K+ - English - Adventure - Chapters: 2 - Words: 6,535 - Reviews: 1 - Favs: 15 - Follows: 5 - Updated: 3/27 - Published: 3/10 - Harry P., Severus S., Albus D., Merlin - Complete
Merlin's Chosen by JediVana reviews
The world is in need of the Once and Future King to protect Albion again, but to do that the immortal Merlin, the man that has learned to live backwards, must be there and he is nowhere to be found. It is now the job of Merlin's Chosen. Only, Harry Potter thinks he's going mental.
Crossover - Harry Potter & Merlin - Rated: T - English - Fantasy/Drama - Chapters: 22 - Words: 74,327 - Reviews: 94 - Favs: 336 - Follows: 484 - Updated: 3/25 - Published: 3/28/2013 - Harry P., Sirius B., Morgana, Merlin
Through the Loop by papaya101 reviews
Based on the books but you don't have to have read them. Just know there is an uncontacted peculiar Jacob rescues called Noor introduced at the end of book 4. When Jacob and Noor find themselves plummeting back in time, they make new friends, abandon the old, and even the discover the origins of peculiarities and the TRUE origin of hollows. No slash.
Crossover - Merlin & Miss Peregrine's Home for Peculiar Children - Rated: K+ - English - Adventure/Romance - Chapters: 12 - Words: 8,266 - Reviews: 6 - Favs: 1 - Follows: 1 - Updated: 3/24 - Published: 2/26
In a Land of Myth and a Time of Destiny by cshen.julienne reviews
"He's the most powerful man in the planet Hermione. Does he even need a protector?" Gwaine offered. Hermione frowned. Merlin has Arthur. But Prince Arthur, brave and righteous as he is, doesn't have magic. So then who would protect Merlin? Who would be there to save Camelot's greatest defender should the need arise? Who would be crazy enough to try and protect the most powerful wa
Crossover - Harry Potter & Merlin - Rated: T - English - Adventure/Fantasy - Chapters: 2 - Words: 4,123 - Reviews: 3 - Favs: 7 - Follows: 10 - Updated: 3/21 - Published: 3/19 - Hermione G., Arthur W., Merlin, Gwaine
To build a future by A2000R
What happens if Castiel was human? Perhapse a prince of another realm in a world when the two sides of the same coin live? Maybe there is more to this prophecy of The once and future King, Maybe Albion needs more allies to be created.
Crossover - Merlin & Supernatural - Rated: T - English - Adventure/Mystery - Chapters: 1 - Words: 663 - Published: 3/17
Flash and Merlin by Bunnysealman reviews
What would've happened if Merlin worked alongside Barry in the CCPD? How differently would things turn out? What if Cisco wasn't all that he appeared to be? Where is Arthur? More specifically, who is Arthur? You'll only find out if you read this fic!
Crossover - Flash & Merlin - Rated: T - English - Chapters: 2 - Words: 2,024 - Reviews: 2 - Favs: 5 - Follows: 11 - Updated: 3/16 - Published: 4/22/2019
A Riddle You Should Never Forget by HedgeWrites reviews
The Orphanage couldn't find a space in their hearts between fear and pity for the boy. Merlin couldn't stand by and watch him fall. It's the 1930s, and Tom Riddle's rise to power is set in motion with very different beginnings. Ghosts of Merlins guilt spur him into the path of a boy who so many had written off for darkness, but perhaps he can still be pulled from the depths.
Crossover - Harry Potter & Merlin - Rated: T - English - Hurt/Comfort/Fantasy - Chapters: 8 - Words: 51,518 - Reviews: 37 - Favs: 96 - Follows: 155 - Updated: 3/13 - Published: 10/27/2018 - Tom R. Jr., Merlin
A Kingdom Beyond the Horizon by TacoXI reviews
It was only a matter of time before the King of Camelot went on another sorcery-expelling rampage; no one saw this one coming. No one except for Merlin, the serving boy to Prince Arthur. Among those Merlin warns is a woman named Forridel. Forridel spreads the message and takes with her a few fellow fugitives, but there was one hideout the sorcerers never should have found.
Crossover - Stargate: Atlantis & Merlin - Rated: K - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 1,266 - Reviews: 1 - Follows: 2 - Published: 3/11 - Rodney M., John S., Carson B., Merlin
Not a Potter by WRose reviews
Why does Merlin suddenly have a teenager with him? Is Prince Arthur acting like a parent? ****I don't own Merlin (BBC) or Harry Potter.
Crossover - Harry Potter & Merlin - Rated: T - English - Supernatural - Chapters: 2 - Words: 3,328 - Reviews: 5 - Favs: 60 - Follows: 71 - Updated: 3/9 - Published: 9/29/2019 - Harry P., Merlin, Arthur
Of All Those Years by every username is usually take reviews
Merlin has spent the past 1,500 years in isolation almost from the rest of the world until the death of a loved one causes him to go back out to retry and become a member of society while waiting for Arthur return. What does he do in that time? Why, he teaches at Hogwarts of course! What kind of shenanigans will the Potter gang get into with the most powerful warlock as a teacher?
Crossover - Harry Potter & Merlin - Rated: M - English - Fantasy - Chapters: 10 - Words: 20,844 - Reviews: 6 - Favs: 33 - Follows: 43 - Updated: 3/9 - Published: 12/26/2019 - Arthur, Ron W., Hermione G.
Why you should never eavesdrop by dragonbreath88 reviews
Merlin finds out why you should never eavesdrop on a certain white-haired knight. One-shot.
Crossover - Merlin & Good Omens - Rated: K+ - English - Humor/Drama - Chapters: 1 - Words: 2,622 - Reviews: 1 - Favs: 4 - Follows: 2 - Published: 3/7 - Complete
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