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He was a monster wearing her husbands face.
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Conquered by ilymarkgrayson
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics)
18 Apr 2025
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Mark Grayson is a rare, unclaimed omega among the Viltrumites, and he’s dangerously late for his first heat. While everyone anticipated that Nolan—his own father—would claim him, Nolan has abandoned him. Now, the empire has sent someone far more dangerous.
Conquest.
A strong alpha, feared even by the high council, arrives with a singular mission: to bond the omega before he unravels entirely. Mark is furious. Defiant. Unwilling to bend to anyone’s will. But Conquest isn’t asking for Mark’s compliance—he’s taking it.Mark finds himself trapped in a world of power dynamics he never asked for, and Conquest’s dark presence is impossible to ignore. As Mark’s heat takes hold, he begins to realize that resistance might be futile—but he’s far from submissive.
And while Mark is caught in this web of dominance and control, Nolan—imprisoned and filled with bitter regret—watches from afar. He’s consumed with jealousy, unable to accept that his son has been claimed by someone else. He’s plotting a way to reclaim what he believes is his, but Mark might not be the same boy he once knew.
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Hypnovember 2023 by PrinceC
Fandoms: Invincible (Cartoon 2021), Aladdin (Disney Animated Movies), One Piece (Live Action TV 2023), Marvel, DCU, X-Men - All Media Types, Teen Titans - All Media Types, Superman - All Media Types, Descendants (Disney Movies), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Doctor Strange (Comics), Young Avengers (Comics), The Mandalorian (TV), Q-Force (Cartoon), The Flash - All Media Types, The Witcher (TV), Fairly OddParents, Steven Universe (Cartoon), The Powerpuff Girls (Cartoon 1998-2005), Batman - All Media Types, Danny Phantom, Percy Jackson and the Olympians & Related Fandoms - All Media Types, Kim Possible (Cartoon), Avatar: Legend of Korra, Titans (TV 2018), Big Hero 6 (2014), Incredibles (Pixar Movies)
13 Jan 2024
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Tackling Hypnovember. General tags for the overall, individual stories will get their own warnings
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Conquest comes to Earth to claim Mark as his mated Omega. He kidnaps Mark and breaks his mind.
Mark becomes pregnant and thinks planet earth is his nest, and he will do anything to prepare the nest for the baby. He will kill to protect it.
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Mark Grayson, a seemingly normal teenager and son of Omni Man, finds himself in his senior year of high school still waiting for his own powers to emerge. That is until he sent that trash bag into orbit, his power finally came and it took him 17 years. Unbeknownst to Mark, his normal human best friend, William Clockwell, is anything but normal and human.
Raised by his single police dad, William has secretly possessed powers since he was eight. His dad, who met and with a rather mysterious woman during a hiking trip, believed she was a cult escapee given her being foreign with the most basic things and when she mysteriously vanished, only to leave baby William on his doorstep with a cryptic note. Believing William's powers stemmed entirely from the Clockwell's past magical lineage, the dad secretly trained his son, determined to protect him from government or GDA interference.
As Viltrumite's true nature comes to light and revealed Earth has had two Viltrumite hybrids this whole time, Mark discovers what it means to be the half human half alien hero Invincible. Meanwhile, William must be Willpower to figure out the mystery of his mother.
AKA A Viltrumite-Human William AU
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Amber wants Target Mark to spend time with her.
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- Part 23 of Flashfics x Invincible
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Target Mark wants Amber to be his Empress but first she must pay penance for her crimes.
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- Part 2 of Alt Markamber Times
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“Hey Grayson!” Todd shoved his way through the milling student body, eyes focused on his target.
Suddenly Mark slumped all his weight onto the lockers with a gasp.
“I’m talkin’ to you Grayson! You deaf now or something?” The Alpha bully fisted the collar of his shirt.
There was an underlying tone in Todd’s voice, a command laced in his first sentence; one that had Mark turn his head in submission and whine.
Mark was presenting. Mark was an Omega. And he was entering his first heat.
- Language:
- English
- Words:
- 4,657
- Chapters:
- 1/1
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- 1
- Comments:
- 57
- Kudos:
- 1,249
- Bookmarks:
- 165
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- 23,322
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Mark loses his fight against his father, after his mother and friends are threatened. He's to be brought to meet the remaining Viltrumites, because given his unique biology, his existence is imperative to the empire. As a male omega, something that hasn't existed in the Viltrum empire for thousands of years, he'll be expected to be mated and to have pure blooded healthy Viltrum children.
Mark doesn't know who Conquest is, or why even his father seems disturbed by the news of who his mate to be is.
- Language:
- English
- Words:
- 30,428
- Chapters:
- 19/?
- Collections:
- 1
- Comments:
- 901
- Kudos:
- 1,557
- Bookmarks:
- 183
- Hits:
- 34,238
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The Invincible Varinats Play DnD
(Based off a Youtube video of the same name. Check it out. The animation is cute.)
Series
- Part 5 of Mark Variants
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"First you, now Mark- I- I hate it here," she admitted.
Nolan wrapped his arms around her, though she didn't relax. "We're going to be alright."
She was unyielding in his arms, barely touching him despite the hug. Her breathing was strained, though she didn't seem to be crying. "I don't want to lose either of you."
"You won't," he insisted.
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Dogs down in the dirt by Saturn_unus
Fandoms: Batman - All Media Types, Invincible (Cartoon 2021)
02 Jul 2025
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Mark held a crying Oliver in his arms, close to his chest. He was whispering soothing words, well they would be soothing if Oliver would stop crying.
Huddled up in a corner of an abandoned building, Mark tried to get his wits about him.
“Welcome to Gotham, Invincible. You’ll enjoy your stay.” Was the last Angstrom said to him, before the portal closed, separating Mark and Oliver from their injured mom.
What the hell even is Gotham?
Or,
Seen so many Peter Parker and Danny Phantom crossovers with Batfam and yet there is barely any with invincible so I’m doing God’s work
- Language:
- English
- Words:
- 10,259
- Chapters:
- 4/?
- Collections:
- 2
- Comments:
- 201
- Kudos:
- 1,527
- Bookmarks:
- 319
- Hits:
- 18,232
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Bookmark Notes:
3
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Comic Book Boy by mangotangolo
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics)
19 Dec 2025
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You are stuck working another shift at the comic store. You love working there, but it can get boring when no one shows up. Suddenly the door opens and a cute guy walks in, now is your chance to talk to him, because he looks pretty familiar.
This is my first fan fic so please let me know if you have any suggestions, still getting used to the format so future chapters might look different.
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Months passed since you've been locked in the G.D.A prison basement. Then one day you're dragged out of your cell, a shocked collar placed on your neck, then thrown into a supposed war. Evil variants of the annoying hero who nagged at your ear were out wrecking the place, and you were tasked (more so forced) to fight them.
... It seems, however, each of these variants have some sort of history with 'you'—and they'll be damned if the one dimension you're alive, they'll let you go. Even if you’re different, it doesn’t make you any less theirs.
- Language:
- English
- Words:
- 37,646
- Chapters:
- 8/?
- Comments:
- 165
- Kudos:
- 1,144
- Bookmarks:
- 201
- Hits:
- 23,675
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Bookmark Notes:
8
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Softer Than Steel by annlytical
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics)
08 Dec 2025
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You're not just a journalism intern at the Daily Planet, it turns you're an alien from a destroyed world. Having hiding your powers behind glasses and excuses. Life in the city is loud, fast, and full of secrets. Which includes your friendships with your fellow interns and your close friend Mark Grayson, who might be hiding something just as big too.
Series
- Part 1 of Softer Than Steel: Extended Universe
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The Invincible Empire by Theo_Lannister
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics), Image Comics
19 Oct 2025
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Nolan Grayson does not want his son's first interaction with True Viltrumite Culture to be when he wipes all governments off the Globe - so instead, he calls his mother - the mighty Thula Greis of Clan Uun, Krolulvek-Kraanvek (the World Breaker) and asks for her advice. The plan? Take Mark on a more kosher conquest of an Evil Empire, so he feels more ingratiated to the Viltrumites.
Thula sees an opportunity to ensure her line doesn't end, and calls her protege (and Nolan's Niece) to come help - the Djanchi Anissa Vokar of Clan Tazareth
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Little bits of Sinister’s life with his William
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Blood is thicker than by ayo_wiwi
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics)
23 Apr 2025
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There is more to being a Viltrumite than just getting incredible superpowers, as Mark finds out.
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William Clockwell has decided that this is the year he will hook up with a super hero, and he knows the perfect one. Invincible!
Mark struggles to figure out how to keep his identity a secret while dealing with his best friend's determination to hook up with his alter ego. we all know how it ends... -
Overlord Among Heroes by Solidex
Fandoms: オーバーロード - 丸山くがね | Overlord - Maruyama Kugane, Overlord (MADHOUSE Anime), Invincible (Cartoon 2021), Invincible (Image Comics)
06 Dec 2025
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Finding himself in a world of superheroes, Ainz Ooal Gown's first instinct is to act the role of a villain. But when the Guardians of the Globe are mysteriously killed, suspicion falls on him, pushing him into hiding. Now, Ainz must navigate this strange world, question his loyalties, and determine his next moves.
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Bookmark Notes:
chp. 2 complete