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The Lost Son by DuskyThorn
Merlin after Arthur's death moved to America and had a son. One day while Merlin was out with his old friends his son died and became Jack Frost. Will father and son reunite and will they ever find love again. (This is a Merlin, Rise of the Guardians and How to Train your Dragon fic but that last part comes in later)
Crossover - Merlin & Rise of the Guardians - Rated: K+ - English - Family/Fantasy - Chapters: 1 - Words: 726 - Published: 11/25 - Merlin, Jack Frost
Lord of the House of Calvin by sunstarunicorn reviews
Ever since he turned seventeen and claimed his inheritance, Lance has been doing his best to learn his duties as the Head of the House of Calvin. With the worst of the Marina situation dealt with, his uncle is finally ready to help Lance confront Gringotts over the apartment lease they negotiated – and why they've been lying about the gold in the family vaults. A MF Side Story.
Crossover - Flashpoint & Merlin - Rated: T - English - Drama/Mystery - Chapters: 2 - Words: 6,974 - Reviews: 2 - Favs: 1 - Follows: 1 - Updated: 11/25 - Published: 11/18 - Greg P., OC, Team One, Lancelot
Of Doctors and Kings by StyxHuntress reviews
Merlin has been alive for millenia. He has lived for so long that by now the earth has been destroyed. Now he is sitting on a bus, on a planet called Midnight, with his newest adoptive parents. There is one man who is unique, something Merlin had never seen before despite his millions of years alive. A retelling of the Doctor Who episode Midnight.
Crossover - Doctor Who & Merlin - Rated: T - English - Suspense/Romance - Chapters: 1 - Words: 6,212 - Reviews: 1 - Published: 11/22 - [Merlin, Arthur] 10th Doctor - Complete
Lost In Camelot by RLD Flame-point Callie-co reviews
A mysterious old man sends Bo and Kenzi hundreds of years into the past. Merlin and Arthur find them and take them to Camelot, where they must navigate a complex maze of medieval society, new romantic entanglements, and magical enemies while searching for a way home and learning some surprising truths about themselves.
Crossover - Merlin & Lost Girl - Rated: M - English - Romance/Supernatural - Chapters: 51 - Words: 234,616 - Reviews: 339 - Favs: 239 - Follows: 284 - Updated: 11/21 - Published: 5/15/2013 - [Merlin, Bo D., Morgana] Kenzi
The Hidden Immortals by SyphontheNightFury
Something was wrong. The world was crying, Magic was screaming, the very essence of Life itself calling for it's Champion, it's Saviour. And they answered. The shockwaves of That Night were felt worldwide, setting events in motion which could not be stopped, even if the hidden Dark Lord tried...
Crossover - Harry Potter & Merlin - Rated: M - English - Chapters: 2 - Words: 1,855 - Favs: 8 - Follows: 19 - Updated: 11/18 - Published: 10/15 - Harry P., Draco M., Merlin, Arthur
The Bat Warlock by Greymon Leader Batx flashpoint
A mini series, what would have happened if Merlin became Camelot's answer to Batman? What would happen if the boy of destiny became another extension of the Dark Knight? Check out this mini series to see 3 chapters.
Crossover - Batman & Merlin - Rated: K - English - Hurt/Comfort/Crime - Chapters: 3 - Words: 46,824 - Follows: 2 - Updated: 11/15 - Published: 9/12 - Bruce W./Batman, Morgana, Merlin, Arthur - Complete
For the Love of Camelot by sunstarunicorn reviews
Sergeant Troy Vio has a problem. His constables have started shunning his bomb tech and none of them will tell him why. When he goes to Lieutenant Parker for help, he sets off a chain of events that no one could have seen coming and gives one of Camelot's greatest foes a second chance. 73rd in the It's a Magical Flashpoint series.
Crossover - Flashpoint & Merlin - Rated: T - English - Angst/Friendship - Chapters: 7 - Words: 27,035 - Reviews: 7 - Favs: 1 - Follows: 1 - Updated: 11/11 - Published: 9/30 - Greg P., Lancelot, Mordred, Gwaine - Complete
Harry Potter and the Battle of Excalibur by ExcaliburStuckInMyStoneHeart reviews
After the death of Dumbledore, the wizarding world feels like it's in shambles, but beneath the surface, the light is moving forward, gathering up their weapons and people preparing for the big battle. Merlin gathers his old friends together to search for Death's EarthBound items. While Harry is hunting for Horcruxes, new friends will be found and old ones remembered.
Crossover - Harry Potter & Merlin - Rated: M - English - Suspense/Fantasy - Chapters: 4 - Words: 20,392 - Reviews: 15 - Favs: 33 - Follows: 57 - Updated: 10/31 - Published: 10/18 - Harry P., Voldemort, Merlin, Arthur
Goblin Chaos, round two by Flashraven reviews
A little attempt to bring the festive spirit of Halloween to Camelot by the Pevensies, now the new Kings and Queens of Narnia, results in much more than they bargained for, thanks to a little green Goblin
Crossover - Chronicles of Narnia & Merlin - Rated: T - English - Humor/Drama - Chapters: 2 - Words: 10,939 - Reviews: 3 - Favs: 3 - Follows: 2 - Published: 10/30 - Edmund Pevensie, Lucy Pevensie, Morgana, Merlin - Complete
La princesa de Camelot by Natalys reviews
La vida de Hermione poco a poco se va consumiendo después de la guerra cuando una impactante noticia llega a ella: sus padres no son sus verdaderos padres. Sin embargo, al averiguar quienes realmente eran los que le dieron la vida será incapaz de creerlo. Atrapada en un tiempo al que cree no pertenecer, vivirá grandes aventuras junto a un príncipe presuntuoso y un mago inexperto.
Crossover - Harry Potter & Merlin - Rated: M - Spanish - Adventure/Romance - Chapters: 84 - Words: 641,607 - Reviews: 426 - Favs: 201 - Follows: 202 - Updated: 10/23 - Published: 5/24/2015 - [Hermione G., Merlin] Harry P., Arthur
Thwarting the Wiles by smartypantsflute
Crowley is arrested for practicing magic in King Arthur's Camelot. Magic hasn't been made legal yet. Sir Azirapahle has to intervene. And apparently, he's oblivious to anything suspicious happening in King Arthur's Court.
Crossover - Merlin & Good Omens - Rated: K+ - English - Friendship - Chapters: 1 - Words: 4,116 - Published: 10/22 - Merlin, Arthur, Aziraphale, Crowley - Complete
Harry Potter and the Advances of a Technomage by ExcaliburStuckInMyStoneHeart reviews
After starting up his Technomage business, Merlin has a bunch of new tasks ahead of him. With the resurgence of new prophecies and new opportunities to teach at Hogwarts, Merlin has a busy schedule ahead of him. While also keeping an eye on death's earthbound items and running into familiar faces, all the while having to deal with the world being tormented by Voldemort. (BOOK2)
Crossover - Harry Potter & Merlin - Rated: T - English - Friendship/Supernatural - Chapters: 22 - Words: 135,207 - Reviews: 96 - Favs: 136 - Follows: 166 - Updated: 10/19 - Published: 9/13/2021 - Harry P., Sirius B., Remus L., Merlin - Complete
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: 20 - Words: 66,734 - Reviews: 163 - Favs: 695 - Follows: 898 - Updated: 10/18 - Published: 12/30/2019 - Harry P., Ron W., Merlin, Arthur
Risen Once Again by JaguarAJG reviews
What if a Harry Potter was subject to not one, but two prophecies? A prophecy of a King, and a land of magic? Following his encounter with the Dementors, Harry starts dreaming of a life once lived, and a love once lost. Look out, Britain: magic's coming. AU Haphne, Mergana
Crossover - Harry Potter & Merlin - Rated: T - English - Fantasy/Romance - Chapters: 5 - Words: 26,778 - Reviews: 25 - Favs: 192 - Follows: 297 - Updated: 10/17 - Published: 9/12 - [Harry P., Daphne G.] [Merlin, Morgana]
The king, Sorcerers, and Avengers by Stand with Ward and Queen reviews
Arthur Pendragon returns to a world ruled by greedy politicians that is overrun by superheroes who are crucified and threats that lurk behind shadow. Larger summary inside.
Crossover - Merlin & Avengers - Rated: T - English - Fantasy/Adventure - Chapters: 24 - Words: 70,855 - Reviews: 196 - Favs: 107 - Follows: 122 - Updated: 10/13 - Published: 7/22/2021 - Morgana, Merlin, Arthur, Spider-Man/Peter Parker - Complete
The Legends Tell of Darkness by Servant of Fire reviews
Thousands of years have passed. Albion, and all its many legends, has faded into dark memories of the Ancient World. The Enchanted Forest grows up around this. Legends tell the story of a Once and Future King, the one whose worthy birth magic will pass to the Savior. Darkness comes for Emma Swan to fight. Merlin escapes his ancient Crystal Prison, and Arthur rises again.
Crossover - Merlin & Once Upon a Time - Rated: T - English - Fantasy/Adventure - Chapters: 23 - Words: 31,603 - Reviews: 3 - Favs: 4 - Follows: 7 - Updated: 10/4 - Published: 8/24 - Merlin, Arthur, Emma S., Killian Jones/Captain Hook
Seconde Chance by Sofya29
Lena entra dans son laboratoire. Elle n'avait pas beaucoup dormi durant la nuit et elle était exténuée. Cela faisait deux semaines que ça durait. Elle passait ses nuits à faire des rêves étranges. Mais plus le temps passait, plus elle avait fini par comprendre que se n'était pas de simples rêves, mais des souvenirs.
Crossover - Merlin & Supergirl - Rated: K - French - Friendship/Romance - Chapters: 1 - Words: 481 - Published: 9/29 - [Kara D./Supergirl, Lena L.] Morgana - Complete
Second chance by Sofya29
Lena walked into her lab. She had not had a good night's sleep and she was exhausted. It had been going on for two weeks. She spent her nights having strange dreams. But as passed, she had come to understand that these were not just dreams, but memories.
Crossover - Merlin & Supergirl - Rated: K - English - Friendship/Romance - Chapters: 1 - Words: 468 - Published: 9/29 - [Kara D./Supergirl, Lena L.] Morgana - Complete
Once Upon a Disaster by lucymaywrites211 reviews
Deep in the Enchanted forest are 3 people who were originally never meant to meet and interact until fate (the author) forced them together into an adventure for them to sort out. Who are the three people? Arthur Pendragon, Snow White, and Robin Hood.
Crossover - Merlin & Once Upon a Time - Rated: T - English - Fantasy/Drama - Chapters: 1 - Words: 5,268 - Reviews: 1 - Favs: 2 - Follows: 3 - Published: 9/21 - Merlin, Arthur, Regina M./The Evil Queen, Snow White/Mary M. Blanchard
The Chronicles of Camelot by Flashraven reviews
Post TLTWATW: one year after coming back through the wardrobe, the Pevensies are called to a different land, where an evil sorceress makes and readies her plans to destroy the Kingdom of Camelot. Can the presence of the High Kings and Queens of Narnia save Camelot and its people before it's too late? Part 1 of a series
Crossover - Chronicles of Narnia & Merlin - Rated: T - English - Adventure/Friendship - Chapters: 4 - Words: 22,079 - Reviews: 15 - Favs: 11 - Follows: 13 - Updated: 9/1 - Published: 5/19 - Lucy Pevensie, Peter Pevensie, Merlin, Arthur
Heroes, Magicians and Luthors by Aragorn II Elessar reviews
A visitor from another world reveals a horrifying secret about Lena Luthor to Kara as three villains, who are doppelgangers of each other, hatch a sinister plan. Part 5 of the 'Heroes' series. Inspired by and similar to Michael Weyer's 'Of Kryptonians and Queens.' Merlin/Arrowverse/MCU/LOTR/Smallville/DCEU crossover.
Crossover - Merlin & Supergirl - Rated: T - English - Fantasy/Adventure - Chapters: 11 - Words: 42,520 - Reviews: 115 - Favs: 43 - Follows: 20 - Updated: 8/9 - Published: 4/18/2020 - Morgana, Merlin, Kara D./Supergirl, Lena L. - Complete
The Sentry by Lyrasloon
He was magic itself and he could feel it, dying though it was. Merlin was the sentry and would wait for them to return, protecting it as long as it took. After all, he had saved them just as much as they had saved him.
Crossover - Chronicles of Narnia & Merlin - Rated: K+ - English - Fantasy/Friendship - Chapters: 1 - Words: 4,995 - Follows: 2 - Published: 8/5 - Edmund Pevensie, Lucy Pevensie, Merlin
Cassiopée Gratien and her life at Hogwarts by MariCat .'D reviews
Her whole world was turned upside down when her curiosity got the better of her. Now she has to navigate through what it means and how to deal with this new-found information. Will become M in later chapters as the story progresses. A slight crossover with my other fic, Llys Dôn. Mainly canon. Will be updated the first of every month until Llys Dôn catches up don't want spoilers :P
Crossover - Harry Potter & Merlin - Rated: T - English - Mystery/Humor - Chapters: 43 - Words: 231,484 - Reviews: 2 - Favs: 17 - Follows: 17 - Updated: 8/2 - Published: 10/30/2020 - Cedric D., OC, Merlin, Arthur
The Guardian of Camelot by WindyCity96 reviews
After running into a violent vigilante claiming to be the reincarnation of Mordred, James and Supergirl head to England to talk to Arthur, Merlin and Lena. Together, they must find Guinevere and the knights of the round table before Mordred hunts them down.
Crossover - Merlin & Supergirl - Rated: T - English - Fantasy/Adventure - Chapters: 3 - Words: 8,103 - Reviews: 3 - Favs: 6 - Follows: 10 - Updated: 7/23 - Published: 6/27 - Merlin, Arthur, Kara D./Supergirl, James O./Guardian
The Blue Butterflies at Hogwarts by saturnAlphenn reviews
Merlin is bored - being on earth for 1500 years does come with it's problems. So, naturally, he applies for a teaching position at Hogwarts. What he doesn't expect is for a certain dragon to follow him, and to be pulled into the abnormally chaotic lives of the golden trio...
Crossover - Harry Potter & Merlin - Rated: K+ - English - Friendship/Adventure - Chapters: 8 - Words: 14,634 - Reviews: 15 - Favs: 129 - Follows: 178 - Updated: 7/17 - Published: 7/27/2021 - Harry P., Merlin, Arthur, Aithusa
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