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Harry Potter and the Prisoner of Time by HarmonyOfTheSpheres
Fandoms: Harry Potter - J. K. Rowling, Merlin (TV)
10 Apr 2026
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Merlin has returned to Hogwarts for his second year as the History of Magic professor, and this time he is determined to find a way to destroy the horcrux within Harry before it's too late. It's not exactly a simple task, however, especially with an escaped convict on the loose and dementors lurking around Hogwarts' grounds. So when Merlin finally gets a chance to change Harry's fate, he takes it.
A bit of time travel is surely worth the risk if it will save Harry's life—isn't it?
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- Part 2 of Secrets of Emrys
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Destiny Is A Scam and So Is This School by GAMERBLADE
Fandoms: Merlin (TV), Harry Potter - J. K. Rowling
10 Apr 2026
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Merlin has survived dragons, destiny, kings, magic-hating monarchs, and the emotional devastation of watching everyone he’s ever loved die.
So really, he thought, a simple trip to the wizarding world for tea couldn’t possibly be that bad.
He was wrong.
Now he’s somehow become the unofficial emotional support adult of Hogwarts, is being hunted by the house-elves because he keeps fixing castle structural problems himself, dealing with a basilisk situation that Merlin is “pretty sure he dealt with once already, back in the 5th century.” and trying to stop Gilderoy Lockhart from deciding that he is his "professional rival."
Merlin regrets stepping outside...
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- Part 1 of Merlin at Hogwarts!
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Elena Daley-Black and the Secrets of the Warlock by MyWritingMyReality
Fandoms: Harry Potter - J. K. Rowling, Merlin (TV)
09 Apr 2026
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Elena Daley-Black is excited for her first year at Hogwarts, but not as excited as she is to discover the truth about the weird aura around her new History professor. She has a bad feeling about this year, her dreams have warned her that everything is bound to go wrong and she can’t help but believe them. She hopes that her dreams are wrong, but hopefully she’ll make some friends of her own and won’t just be a tagalong to her brother.
Series
- Part 4 of Let Magic Guide You Home
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Of Bards and Dragon Tales by saturnAlphenn
Fandoms: Merlin (TV), Harry Potter - J. K. Rowling
05 Apr 2026
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Merlin is bored - being on earth for 1500 years does, apparently, come with it's problems. So, naturally, he applies for a teaching position at Hogwarts, only to be absorbed into the chaos that's got the boy with the lightning scar's face plastered all over it.
Oh, and there’s a dragon. A suspiciously human-shaped dragon.
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What if Merlin was best friends with the Marauders but left for an internship just after school ended. What happens when he returns years later and learns what happened to his friends while he was gone.
This is my first fic so it might be a little choppy. For some context all 5 seasons of Merlin are canon in this and this takes place while Merlin is waiting for Arthur to rise from the lake of Avalon. Books one and two of Harry Potter are the same and the story starts off just before book three. -
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Camelot fell, but Merlin lives on. He's lived many lives over the years, guarding the place his pain stems from during most. When his magic isn't enough to hide Camelot castle and its found by an odd group of archeologists, he does what he does best- creates a new life to continue protecting his past.
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"So, what's up with our dear Marauders?" Arthur asked, sliding into the seat across from James and the face-planted Sirius.
Sirius didn't lift his head but let out a dramatic wail. "There are no Marauders anymore."
“Oh, come on,” James said, exasperated. “I don’t remember us ever officially disbanding.”
Series
- Part 32 of Merthur fic
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Доля – це шахрайство, так само як і ця школа by jnsp
Fandoms: Merlin (TV), Harry Potter - J. K. Rowling
01 Dec 2025
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Мерлін пережив драконів, долю, королів, монархів ненавидячих магію і емоційне спустошення від спостереження за смертю всіх кого він колись кохав.
Так що насправді, він подумав, легка подоріж до чарівного світу на чай не може бути такою вже поганою.
Він помилявся.
Тепер, він якось став неофіційним емоційно-підтримуючим дорослим в Гоґвартсі, його переслідують домашні ельфи, бо він продовжує лагодити конструкційні проблеми замку, він розбирається з проблемою з василиском з якою, за словами Мерліна, він доволі впевненний , що вже розбирався колись у п'ятому сторіччі, і намагається переконати Гільдероя Локарта, що вони не "професійні суперники".
Мерлін шкодує, що вийшов з дому...
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Seguito di "Questo. Così." Pubblicata ieri. <3
"Ma, se doveva essere sincero, il più delle volte rivedeva il momento in cui Merlin era apparso dalla collina, nei suoi scompigliati capelli bianchi, nelle mani aperte tese verso di lui. Ed i baci."
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Merlin reminisces about Arthur and Camelot.
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Unbridges greatest mistake by Silvia_blackparrot
Fandoms: Merlin (TV), Harry Potter - J. K. Rowling
05 Oct 2025
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Merlin is the defence against the dark arts teacher in Hogwarts during Harry’s 5th year, and Merlin being himself got on umbriges bad side and for this she tampered with one of his lessons by turning him into a 20 year old as she doubted his 20 year old self could handle a a class of 15 year olds and gets quite the shock
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Deja Vu (I've Been Here Before, But There's More to Explore) by Laurieonalark
Fandoms: Merlin (TV)
26 Aug 2025
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Ten years ago, Arthur made the worst mistake of his life: leaving Merlin behind. He's regretted it almost every day since, but accepted long ago that the damage was done. Though he fantasized about what might happen if they met again, he felt certain that Merlin would never forgive him for the hurt he had caused.
However, while back in Wales for a legal conference to represent Pendragon Law, he runs into Merlin, who, by some miracle, doesn't seem to hate his guts as he should. They fall back into each other's lives as if no time has passed, and Arthur can't help but wonder if this is his chance to fix things. Maybe, just maybe, if he does this right, he could have the thing he wants most.
Series
- Part 1 of deja vu (the extended world)
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In which Arthur and Merlin are soulmates.
In which Prince Arthur Pendragon of the British Monarchy and Magical History Professor Merlin Ambrosius of Avalon University are soulmates.
In which an overzealous fan causes the reveal of Prince Arthur's soulmark, and a different overzealous fan recognizes the soulmark of his pseudo mentor/professor.
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Merlin's curse lasts into the modern age, and the Goddess still won't let him see peace. Merlin returns to Ealdor and works at the local university, final settling into his new life. And then the Goddess decides to fuck his life up all over again.
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Where a Lot of People Team Up and Try to Destroy One Another (A BBC Merlin and Harry Potter crossover) by StupefymeWholly
Fandoms: Merlin (TV), Harry Potter - J. K. Rowling
08 Jun 2025
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Just months after the fall of Voldemort, as the magical world struggles to heal, Merlin receives a letter from Hecate bearing a prophecy — one that speaks of the return of long-lost friends... and long-forgotten enemies.
He and Leon race back to England and quietly join the Hogwarts faculty under the Headmistress’s protection, waiting for Samhain, when the veil will thin and the lake of Avalon will stir. Arthur and his knights are fated to rise again — but so is a darkness that once tore their world apart.
Old allies must forge new swords with dragonfire. Morgana must choose between blood and redemption. And across the shadowed moors, a sister threatens to raise an army of the dead.
As magic’s fate teeters on the edge, the line between kin and foe blurs once more.
The once and future king returns — but will the world survive this war? -
One More Time by orphan_account
Fandoms: Harry Potter - J. K. Rowling, Merlin (TV), Percy Jackson and the Olympians - Rick Riordan
07 Jun 2025
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Merlin and Leon have been off the grid, researching rare herbs across the Atlantic—until a cryptic prophecy from Hecate sends them rushing back to England. Hogwarts is still recovering from the scars of war, but some things never rest. As Arthur and his knights return from Avalon’s depths at Samhain, old friends and foes alike find themselves caught in a web of magic, dragons, and destinies rewritten. Morgana’s making unexpected choices, while Maurelle summons shadows best left alone. With swords reforged by dragonfire, and an army rising from the dead, can they face what’s coming… one more time?
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How you came to be. by Doctor_JohnEmrys
Fandoms: Merlin (TV), Harry Potter - J. K. Rowling
30 Apr 2025
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The story of how Methur became the favourite professor at Hogwarts.
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Merlin and the Last Truth by mysticxy
Fandoms: Harry Potter - J. K. Rowling, Merlin (TV)
12 Apr 2025
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With Voldemort now back and poised to return Morgana to the land of the living, Merlin has much to prepare for what is to come, especially in regards to Harry, the one who seemed to be the person who could fulfill Merlin's hopes of making the world a better place. However, unbeknownst to Merlin, the Prophecy of the Once and Future King is not what it seems, a secret only known to Kilgharrah, but he has other things to concern himself about, especially as the Ministry is divided between supporters of Voldemort and the side of the Order of Phoenix. As things escalate, truths shall be revealed, both to the Wizarding World AND to Merlin.
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Merlin and Regulus have a talk and Merlin remembers some people.