1 - 20 of 79 Works in Assassin Harry Potter
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When Emperor Tom Riddle hosts a masquerade ball to choose his eternal queen, the nobility arrives in silks and jewels—yet one guest hides sharper secrets. Harry Potter, the empire’s most feared assassin, has come not to dance, but to kill. But when the Emperor himself extends a hand and asks Harry for a dance, one step on the floor may seal his fate—whether in blood, or in temptation.
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The Instrument of Her Dark Will by ChosenOfSlaanesh
Fandoms: Harry Potter - J. K. Rowling
26 Aug 2025
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"I will break you," Riddle whispered, her fingers trailing fire along the girl's jaw. "I will beat you. Bleed you. Strip you of doubt, of decency, of all that binds you to their world. I will forge you sharper than Elven steel and more poisonous than basilisk's blood. When I am finished, there will be none more beautiful in cruelty, none more vile in intent than you."
She circled her, barefoot, veiled in flame and shadow. "You will be my instrument, little Potter. My scourge. My wrath made flesh. Will you submit to me — body, mind, and soul?"
Rose said nothing.
She simply knelt, naked and trembling, and kissed the Dark Lady’s feet.
FemHarry x FemRiddle
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Harry went missing. Later, the Dursleys were murdered. Over time, many revelations occur. Family deals are fulfilled and remade.
Everybody wants to answer the question:
Just where did Harry Potter go?
An AU in which Harry gets a little revenge, does some manipulating, and scares the general populus.
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Reforged Destinies by Arsenal597, LuciferBael (DaemonBalaerys)
Fandoms: Harry Potter - J. K. Rowling, Arrow (TV 2012), DCU (Comics), Teen Wolf (TV), Supernatural (TV 2005), Lucifer (TV), Constantine (TV)
31 Jul 2025
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It's said that everything can change in an instant, and Harry Potter and Oliver Queen are proof of that. After five years of hell, the two return to Starling City as vigilantes looking to honor Robert Queen's dying wish. However, what starts as a promise quickly evolves into something far greater... Bonds will be broken, heroes will rise, and demons will be unleashed. With rising odds and growing opposition, can they save Starling City before its too late?
Part 1 of the Arsenalverse
Series
- Part 2 of Arsenalverse
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After the war, Harry vanished. When Draco found him years later, he was a ghost of the boy who once saved the world — a trained killer, all sharp edges and silence, working from the shadows. They don’t talk about what they are to each other. They don’t ask questions they can’t bear to answer. But when blood is all they’ve known, and ghosts are all they have left, sometimes touch speaks louder than words. Two broken men. One life at a time.
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[Watching] Feral Kids Might Just Take Over the World... Or End it. (ft Chaotic Murderous Brats) by Cyr_xmBx for LennyBrito
Fandoms: Harry Potter - J. K. Rowling
24 Jul 2025
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The Boy-Who-Lived goes missing after his fourth year at Hogwarts. His parents and the rest of the World are left running like headless chickens. Voldemort has his minions working on a little something to gain information on the missing boy's whereabouts.
He gets more than he bargained for.[No Underage, No Smut]
This will probably be a five-chapter fic.Series
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They turned him into this—every lie, every silence, every time they called him a savior and left him to bleed. Harry Potter isn’t interested in redemption. He wants reckoning. And when he begins to become the very weapon they tried to mold, the only one who doesn’t flinch is Theo Nott. Sharp-tongued, unreadable, and far too willing to follow him into the dark. War is coming. And this time, Harry plans to burn it down on his own terms.
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Assassins & Magic by WritingShop12
Fandoms: Harry Potter - J. K. Rowling, Assassin's Creed - All Media Types
01 Jul 2025
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What would happen if Harry was abandoned by his family in favor of his sister?
What would happen if Harry's magic accidentally sent him back to Renaissance Rome?
What would happen if Ezio Auditore came across an abused youth in need of a father and decided to offer guidance?
What would happen if a fully trained assassin returned to the future at the Champion Selection ceremony for the Triwizard Tournament?
Read on and find out. -
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“If I betray you, I betray myself. If I betray him, I betray my country;” Harry’s breath has become hollow, but his gun is still high before him “my country is very dear to me.”
“Dearer than I?”
“No. No, not dearer than you.” That is not how it was supposed to go. “But what good are words... when your heart is breaking? If I fail now, I should deserve to die. You tricked me into loving you.”
“You’re wrong.”
“All this time, you were just pretending.”
“Harry, I was in love with you.”
In a world of blood and power, Tom is cold, Harry is lost. Now, either must die at the hand of the other for neither can live while the other survives. Oh, and they are married.
Easy to say, no one is safe.
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Harry was hired to assassinate Lucius Malfoy's precious heir. What he didn't expect to find was a spoiled heir infatuated by him.
Or, Harry is searching for his next hit. Draco is searching for a thrill.
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Harry Potter, Mafia Bride. (He did not sign up for this, he blames Avery, Tom, the government, and chilly cheese fries) by Eliza_Black_ur_mom
Fandoms: Harry Potter - J. K. Rowling
09 Apr 2025
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Harry was just trying to get a job to pay off his damn debt, but then Riddles fucking minions just had to have an opinion.
Or,
When Harry leaves his old job to become a mafia's, (Tom's), bodyguard, he isn't impressed when all of a sudden he's forced into playing the part of Riddle's wife after Riddles minions decide that Harry obviously could be anything but Tom's wifey. Especially since that means he's the target of kidnappings and the schemes of Riddle's enemies.
Harry's going to beat their and Riddle's asses into next year. And then get blackout drunk, and have a vacation, because he really needs one.
Harry's kind of Wifey, but in the end both he and Tom are Sniper. Is this a edit audio reference? Yes, yes it is...
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No-one had seen or heard from Harry Potter in 11 years. He hadn't come to Hogwarts when he was supposed to. Which nobody was surprised by, because all of the letters they had sent were returned unopened.
Series
- Part 1 of Two traumatized children :D
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Assignment 523-DM by harDeehar (dryrsheet) for trishjames
Fandoms: Harry Potter - J. K. Rowling
19 Dec 2024
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Three years into his captaincy of the team that doesn’t technically exist, Harry is given a new informant: Draco Malfoy.
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Harry didn't expect this. He wasn't ready at all, why is he even doing this. He knows he will get teased, but it's for the mission, so he doesn't have a choice. What he truly didn't expect tho, is that Draco Malfoy fell in love with him— his disguise I mean.
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A Monster with a Heart by Solita_Belle
Fandoms: Harry Potter - J. K. Rowling, Katekyou Hitman Reborn!
05 Oct 2024
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The magical world should count itself lucky. Of all the monsters Harry could have met that day, he met one with a heart.
Series
- Part 1 of A Monster's Legacies
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The boy-who-lived has been missing for three years. When he reappears, he seems different, to say the least.
Not to mention, the boy's supposed friends, his house head, and the headmaster were looking at him with disdain and disappointment, if not disgust.
That doesn't mean that Potter had nobody. The boy had the newest DADA professor on his side, somehow.
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Harry Potter and the Hidden Blades by Valexdagobbo
Fandoms: Harry Potter - J. K. Rowling, Assassin's Creed - All Media Types
03 Jun 2024
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Instead of listening to Dumbledore and going on the run, Sirius decides to rescue Harry from the Dursleys and teach him the legacy of his family, the Potters, that goes back over a thousand years and across the continent and train him the way he should have been.
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When Harry Potter does not show up for his first year Hogwarts Wizarding Britain’s world turns to shambles as they uncover exactly what happened to the boy since he vanquished the dark lord. And now the boy has disappeared and they have no idea if he is even alive.
Years later Hadrian Potter-Peverell is found defending a small store from a death eater attack. No one is prepared for the strong, confident, incredibly powerful boy that is seeped in darkness and has an array of dangerous secrets.
Around the same time the notorious international assassin group First Blood shows up in Britain…
And Voldemort? He’s incredibly intrigued both by the dark, uncaring, powerful, sadistic assassin Azrael, and the flirty, sweet, confident and extremely powerful Hadrian Potter-Peverell that shows up out of nowhere.
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Harry hasn't been in the hitman game too long, but he's no rookie either. So when a routine job goes awry, he finds himself face to face with a mysterious assassin working to upend his entire life and destroy everything he holds dear.
That last part may be a bit of an exaggeration, but soon Harry realizes he has no choice but to work with one plan ruining jerk or risk losing his job. Oh, and this new friend? None other than his old pal Draco Malfoy, who's about as happy with the arrangement as Harry is.
But as their mission spirals deeper and deeper, the pair discover a dirty plot that could spell much more than Harry losing his job, or Draco losing his head. Even worse, Harry's starting to see Draco as more than just a business partner in this deadly arrangement.
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The Lost Witch: Renaissance by LadyCroussette
Fandoms: Harry Potter - J. K. Rowling, Assassin's Creed - All Media Types
10 Apr 2024
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After the death of her godfather Sirius Black in the Department of Mysteries, Harriet Potter (Fem!Harry) make many wishes while mourning him. She hope with all of her heart that she knew how to handle a fight and protect those she loves. And, she wish she can have someone who would love her and never leave her. Unbeknownst to her, someone hear her wishes and throw her back in time to Rome, Italy, in the hope she will be able to fufill her wishes. And, when she meet a nice man named Ezio Auditore who save her from a horrible situation at his own risks, her wishes might just end up being answered.
In which Harriet Potter join the Assassin Brotherhood during the events of Assassin's Creed: Brotherhood and fall in love along the way.
Series
- Part 1 of The Lost Witch