1 - 20 of 222 Works in Professor Paradox (Ben 10 Series)
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Unidentified Heroic Object - UHO by pyro1096
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Ben 10 Series
06 Oct 2025
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Summary
It started when an alien device did what it did
And stuck itself upon his wrists, the secrets that it hid
Now he's got superpowers, he's no ordinary kid
He's... Deku?When Ben Tennyson dies, he gives the Omnitrix to Professor Paradox, for equal parts safekeeping and searching for a successor. A little bit of universe hopping lands the good Professor in Mustafu, Japan right on time to witness the Sludge Villain Incident. The rest, as they say, is history.
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The Troll Circle (Omnitrix AU) by Ironstone8247
Fandoms: Hilda (Cartoon), Hilda Series - Luke Pearson & Stephen Davies, Ben 10 Series
05 Oct 2025
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A chase through the city leads Hilda out of Trolberg and into stewardship of a strange device. But what is it, exactly? Maybe the head of Safety Patrol can help keep something bad from happening...
(You don't have to know Ben 10 to enjoy this; just Hilda)
Series
- Part 1 of Hilda Omnitrix AU
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Dinosaurs and Aliens by jboy44
Fandoms: Ben 10 Series, 古代王者恐竜キング | Dinosaur King, The Secret Saturdays, Generator Rex
05 Oct 2025
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A twist of Fate, and Max's parents were taken away, No with no family he has been adopted by the Tennyson family. Max has his dinosaurs, but his big brother has his aliens. With his new family Max is about to set out to stop prehistoric and other worldly evil, and save his birth parents from their kidnappers.
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The Rebellious Timeline by ZombieQueen
Fandoms: Star vs. the Forces of Evil, Ben 10 Series
04 Oct 2025
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I met a traveller from an antique land,
Who said—“Two vast and trunkless legs of stone
Stand in the desert. . . . Near them, on the sand,
Half sunk a shattered visage lies, whose frown,
And wrinkled lip, and sneer of cold command,
Tell that its sculptor well those passions read
Which yet survive, stamped on these lifeless things,
The hand that mocked them, and the heart that fed;
And on the pedestal, these words appear:
My name is Ozymandias, King of Kings;
Look at my Works, ye Mighty, and despair!
Nothing beside remains. Round the decay
Of that colossal Wreck, boundless and bare
The lone and level sands stretch far away.”Percy Shelly’s “Ozymandias” (1819)
Series
- Part 2 of The Promised House of Butterfly
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White Rabbit by ZombieQueen
Fandoms: Dark (TV 2017), Miraculous Ladybug, The Magnus Archives (Podcast), Welcome to Night Vale, Alice Isn't Dead (Podcast), Stranger Things (TV 2016), Doctor Strange (Movies), Ben 10 Series, Danny Phantom, The Magicians (TV), 1899 (TV), Toaru Kagaku no Railgun | A Certain Scientific Railgun, Inside Job (Cartoon 2021), Assassin's Creed - All Media Types, The Owl House (Cartoon)
04 Oct 2025
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Original Storyline:
Paper Crown (Oct. 22nd, 2023 to Dec.1st, 2024)
Achilles Come Down (July 18th, 2024 to Dec. 18th, 2024)
Ancient Dreams In A Modern Land (Jan. 31st, 2023 to Oct. 31st, 2024)
Running Up That Hill (A Deal With God) (Feb. 16th, 2023 to Nov. 5th, 2023)Summary:
Prepare to witness the concepts of space and time begin to shatter into pieces as reality begins to unravel the mind and soul through ungodly powers not meant for mortals to comprehend. A spoiled brat becomes humbled through her acts of escaping war, a pair of lovers fail to escape the black hole they’ve entered, a doctor unknowingly destabilizes her father’s already dangerous invention and a teenager discovers that he can manipulate time. This is just the tip of the iceberg as the concept of real begins to wilt.Series
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During Beacon's Initiation, Jaune stumbles upon a watch that grants him power beyond his dreams while throwing his life into total chaos. Now Jaune, Ruby, and their friends must try to survive the insanity of the Omnitrix and the pressures of Remnant. Secrets, surprises, friendships, love, and much more await our heroes as they venture through life and try not to get themselves killed.
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Boku no Hero Alien force by Commander_Benguin010
Fandoms: Ben 10 Series, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Boku no Hero Academia | My Hero Academia: Vigilantes, ヴィジランテ | My Hero Academia: Vigilantes
25 Sep 2025
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Hello Everyone. I just want to say that when I write these stories, I write them to the best of my abilities. I have a learning disability, which make it hard to write as well. So don't expect my stories to be top tier.
Eon cause problems for Ben in a crossover of MHA x Ben 10. Ben has to face challenges that would not stop him before, old faces, new enemies and Family problems? All for one is more than a Shigaraki.
This story is another ben 10 crossover. Follow my other story Mass effect 10. I would not stress this enough to say That I do not own both series and manga. which is of course Ben 10 and My hero academia, They both belong to there respected owners. Please support the official release.
chapters 1-11 Prologue arc
chapters 13-18 sports festival arc.
Chapters 19-xx Internship arc.Series
- Part 2 of The Eon effect
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While looking through the Omniverse, Paradox finds a timeline coming to an unexpected end. In order to aid them, he forces work obsessed 30yo man to be summoned.
Requested by Mrmordi_217
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Fate/alien fake by Mrmordi_217
Fandoms: Ben 10 Series, Fate/strange fake, Fate/stay night & Related Fandoms
22 Sep 2025
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Even though Charmcaster has become a hero and is dating Ben, she still feels guilty over the things she did in the past. She wonders if everyone’s lives would be better if she was never born. But Professor Paradox appears to show her just how wrong she is.
Based off of the film “It’s A Wonderful Life”.
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Jennifer finds Professor Paradox in local library by luck. She decides to see how the other time lines are holding up. Professor Paradox did not like how she was somewhat on equal terms with him on being an outsider of the universe.
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Chatting Green by Corvix_Ailuranthrope_4313
Fandoms: Ben 10 Series, The Secret Saturdays
10 Sep 2025
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The relationship between Ben and Kai always seemed a little rushed to me in Omniverse, so I thought that I'd make my own two cents into it, flesh the romance out by actually giving them a relationship that'll grow over time, love it or hate it but I'm definitely writing it, it'll be a mix of group text and normal but honestly I cannot wait to see how it'll turn out.
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AU Van Kleiss wants to nullify Rex Salazar and decides to send him to another universe, both the scales causes Ben Tennyson to be on Rex's universe and maybe cause problems.
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Professors Blessing On This Wonderful World by WritingRandomly
Fandoms: Ben 10 Series, この素晴らしい世界に祝福を! | KonoSuba: God's Blessing on this Wonderful World! (Anime & Manga)
05 Sep 2025
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One particular goddess winds up dealing with yet another recently deceased teen, one Jen Tennyson.
Inevitably, she finally joined a party.
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Her name is Dawn Tennyson. She's 14 years old, goes to Bellwood High School and is a bit of a crybaby. She thought she was just a normal girl living in the shadow of her famous older brother until she begins having weird dreams of another world and a handsome mystery prince. And then she's gifted a brooch that can transform her into the magical Prism. And then she met Rook Blonko. Now facing emerging memories, new powers, and threats seeking her and a mysterious gem, Dawn is tasked with learning the truth about herself and fighting to return home.
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After his failure costs the lives of hundreds, an 18 year old Ben Tennyson sets out to master the Omnitrix. But when a new foe begins gathering his greatest enemies, Ben must return from his training to stop them before it is too late. With the help of some of his closest allies, plus an old flame, can Ben stop the threat? Or will he fail once more?
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Ben 10, The Cycle’s End by Parker_Fox
Fandoms: Ben 10 Series, Mass Effect Trilogy, Mass Effect: Andromeda
13 Aug 2025
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Part two of my crossover thing.
Ben Tennyson found himself in the Mass Effect universe shortly before the start of the second game. Now, with the arrival of the Reapers, his influence is still felt across the galaxy.
Fic should cover the timeline of Mass Effect 3.New chapters eventually.
Series
- Part 2 of Ben 10 Mass Effect Crossover
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Ben in a grimdark universe by magmajira
Fandoms: Ben 10 Series, Warhammer 40.000, Warhammer 40k (Novels) - Various Authors, Warhammer 40.000: Dawn of War (Video Games)
12 Aug 2025
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A clone of ben tennyson is sent to a grimdark universe
to bring peace will he fail or will he be the one to finally end the war and bring peace at last. early chapters under rewrite.cross posted from space battles
Series
- Part 1 of Ben in a grimdark universe
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Jen 10 Grow Up by jaspersummerbummer
Fandoms: Ben 10 Series, Ben 10 Alien Force, Ben 10 ultimate alien - Fandom, ben 10 Omniverse
09 Aug 2025
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Jen Ten; Grow Up is an alternate universe fanfiction that follows a 21 year old Jen Tennyson as she navigates being the universes most powerful person, while also trying to deal with her interpersonal relationships.
Website by Gas Station Cat;
JenTenIsCanon -
Doctor Who: Crossings (Series 3) by Canso99
Fandoms: Ben 10 Series, Doctor Who, Sonic the Hedgehog - All Media Types, Splatoon (Video Games), Super Mario & Related Fandoms, Looney Tunes | Merrie Melodies, Power Rangers, Star Wars - All Media Types
05 Aug 2025
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The Doctor and Amy are still whizzing through time and space, now that there’s no quest on their minds! What new adventures await them? Let’s find out!
Series
- Part 3 of Doctor Who: Crossings