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After a confrontation at Lewis's birthday party, Charlotte seeks out Rikki for a private showdown at the marina. What starts as angry words quickly escalates into a dangerous fight between the two mermaids, with Charlotte using powers Rikki didn't expect her to have. The battle puts Rikki in serious danger until an unexpected interruption gives her a chance to escape. The encounter reveals just how far Charlotte is willing to go in her vendetta, and both girls realize their conflict is far from over.
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Sonic's Green Hills Adventures Season 6 by AlluraTheTitan
Fandoms: Sonic the Hedgehog (Live Action Universe), Invader Zim, H2O: Just Add Water
23 Sep 2025
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Just months after the Multiverse mayhem, Sonic and his friends face a new threat: an alien titan burdened by power, scars, and a story none of them are ready for.
Disclaimer: The series "Sonic's Green Hills Adventures" doesn't belong to me. Go check it out MarinaMelody (https://ao3-rd-3.onrender.com/series/4011130) and read the other 5 seasons or listen to them on her YouTube channel (https://www.youtube.com/@MarinaMelody-sw1ck)
- Language:
- English
- Words:
- 9,435
- Chapters:
- 3/27
- Hits:
- 64
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Emma Gilbert is in medical school in Sydney. A casual swim results in a run-in with an old nemesis. Will Emma's secret be exposed? Will Denman finally capture a mermaid to further her career? How will Emma handle this now that she's on her own with no friends to help out? Emma never thought she'd have to do the things she did. Is turning to crime something she ever expected to have to do? No, but here we are.
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IN WHICH I REWRITE H20 JUST ADD WATER BUT PUT 2000S F1 DRIVERS AS THE CAST INSTEAD OF THE ACTUAL CAST BECAUSE I DO WHAT I WANT.
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Years have passed since Emma, Rikki, and Cleo have last seen each other. They have moved on from the time they had together in the Gold Coast to pursue careers and families. When each of their daughters is 16, something-- perhaps magic-- brings them all back to the town in which they grew up. Emma, Rikki, and Cleo are now forced to face each other again and work through the past that resulted in their separation for the sake of their girls while also keeping their biggest secret from their own children.
This work uses NO AI and is my own work. PLEASE do not steal, republish, or plagiarize. Posting on other platforms will be done by ME (dustystar). (Fun fact: I actually handwrite pretty much the entirety of this fic because it helps with writer's block and lets me write in public without feeling awkward, highly recommend.)
If you'd like to see me post fanart or answer questions follow me on Tumblr @dustystar11 :)
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Zane give Harrison an ultimatum and leaves to go to comfort Rikki
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Teatro de Cosas Escondidas by Nisht_14
Fandoms: H2O: Just Add Water, Mononoke-hime | Princess Mononoke
21 Sep 2025
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Tash es un acróbata de circo que viaja con su compañia alrededor de un mundo ficticio junto a sus amigos. En su viaje hacia las Islas del Pétalo, las aduanas los mantienen ocupados ya que hay un problema con la caza excesiva. Otros circos también se ven involucrados mientras él, y su nuevo compañero le enseña algo que ayudara a que todos puedan salvarse del desastre. Varios misterios de la naturaleza y de los personajes van a hacer que peleen, o que se ayuden y eviten la destrucción de las islas.
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Sons of the Ocean by Mistletoe19
Fandoms: Mako Mermaids, Percy Jackson and the Olympians - Rick Riordan, H2O: Just Add Water, The Heroes of Olympus - Rick Riordan, Percy Jackson and the Olympians (TV 2023)
20 Sep 2025
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When Percy and his family visit their long lost cousins in the Gold Coast, something feels off. The Blakelys’ son, Zac, is definitely keeping secrets from his parents and seems to have some strange affinity with water. Could he be another son of Poseidon?
Meanwhile, Zac can’t help but feel that there is something fishy about Percy, who always appears dry after a swim and who is also definitely keeping secrets. Could he possibly be another merman?
A Percy Jackson x Mako Mermaids crossover that imagines the shenanigans that might happen when the worlds of a merman and demigod collide. Will Zac and Percy be able to keep their watery secrets from each other?
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His Mermaid || Edward Cullen by MerLynn97
Fandoms: Twilight Series - Stephenie Meyer, Twilight Series - All Media Types, Twilight (Movies), H2O: Just Add Water
16 Sep 2025
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Edward Cullen was left devastated by Bella Swan's infidelity, having found her tangled up in the sheets with her best friend, Jacob Black. Nearly two decades later, and he was still reeling from the effects. He was numb, speaking only when spoken to and counting leaves in his spare time, which, according to him, all his time was 'spare'.
But what happens when the Cullens find themselves moving to the Gold Coast of Australia? What happens when Edward notices a certain blue-eyed, golden-haired girl who shares the same name as the girl that broke his heart all those years ago? What happens when he finds himself drawn to the charming, mysterious girl, despite his best efforts to steer clear of her?
What happens when he comes to find out that Bella Hartley and her friends share a secret of their own?
What happens when vampires and mermaids collide?
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"You're so... secretive," Edward mumbled bitterly, shaking his head in obvious annoyance.
I narrowed my eyes at him on reflex, growing tired of his sour expression and biting comments.
"You're one to talk," I quipped, folding my arms across my chest and resorting to staring out the window, ignoring his incessant, curious stare.
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good luck, peaches! by Anonymous
Fandoms: H2O: Just Add Water, Ever After High, Papa Louie (Video Games), Hamilton - Miranda, KPop Demon Hunters (2025), Super Mario Galaxy (Video Games), The Good Place (TV), House M.D., Big Hero 6 (2014), High School Musical (Movies), Peanuts - Charles M. Schulz (Comics), Percy Jackson and the Olympians - Rick Riordan, Harry Potter - J. K. Rowling, Strawberry Shortcake - All Media Types, Henry Stickmin Series (Video Games), Alvin and the Chipmunks - All Media Types, Care Bears, Phineas and Ferb, Formula 1 RPF, Gilmore Girls (TV 2000), Mafalda (Comic), Malcolm in the Middle, Spider-Man: Spider-Verse (Sony Animated Movies), Buddy vs. Duff (TV), Minecraft (Video Game), Sam & Cat (TV)
15 Sep 2025
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peaches is a new student at a high school where characters from all different universes come together. so far, everyone either loathes her or is desperately in love with her. so, the going unnoticed plan isn't going so well, after all.
(seriously don't read this)(its terrible on purpose)
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Water and oli
- Language:
- English
- Words:
- 515
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 14
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Between Reefs and Rooftops by Stellar_Panera
Fandoms: Batman - All Media Types, H2O: Just Add Water
13 Sep 2025
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Tim isn't having a good time. Right when he thought things couldn't get any worse, they did. After getting injured and almost drowning, he now has to deal with a new issue from his strange experience in the cave he fell in. Tim found out that keeping his vigilante identity is child's play compared to whatever is causing him to turn into a half-fish.
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Tim falls into a moon pool at just the right time and now has to keep himself from being found out by not only his friends (because of the headaches they will cause), but also his enemies.
How long can he manage to avoid water and keep this from the family and others? (except Alfred, he knows all!)
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Both Rikki and Zane have their own POV about the kiss in the elevator of the seminar
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When a mysterious man comes into town how will the girls handle his suspicious intents? And more importantly, how will the mission of keeping the girls safe bring Rikki and Zane together?
Set in the beginning of season 2, also the Bennets own the Marine park in this.
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Just ignore the problems (H2O X WK) by Theunwantedgamer
Fandoms: Wild Kratts, H2O: Just Add Water
02 Sep 2025
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This is heavily inspired by "When the water ran red", and "In which everyone fights for custody" I love their takes on H2O and whatnot, this story will be much different but it'll probably have enough similarities I didn't want people to think I was blatantly copying without giving credit
That being said, I'm very disappointed at the lack of mermaid fics in the wild kratts fandom so I decided to fix that :D
This is kind of a shit post so ignore quality issues lmao
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A Great Lakes Moon by Lockheed_Tvr
Fandoms: H2O: Just Add Water, H2O: Just Add Water - ish
01 Sep 2025
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Eleven-year-old Kim Callahan keeps to herself and likes hanging out at Lake Erie. When a rare set of astronomical and atmospheric events line up, her life and the lives of those around her will never be the same - and not just because middle school is starting soon for them. A tail of magic and friendship.
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Zane is a motorcross champion and he knows he could have all the girls at school.
Rikki is the only girl who's not fascinated by his smile.
Emma and Cleo are smarter than the others and they already know how it will end.Plus some mermaids adventures here and there
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Five girls, three moon pools, one big secret. Ellie, Lucy, Amy, Callie and Jay are thrust into the world of mermaids. The five of them could not be more different, but to deal with this together, an unlikely friendship will form. Especially when they come to realize there are more than just magical moon pools at play.
Or,
Years ago I wrote a story on another platform. Back when I had no idea what paragraphs were. I didn’t do my characters justice, or my plot ideas. It’s been a long time, but I’ve missed these characters, and I hope I can do them justice now.
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Trigger warning. Suicide attemp and a death. With Rikki breaking up with him, all Zane's frustrations with himself come to a head and can't take it anymore. He tries to take his own life, but Rikki talks him out of it. After everything, Sophie is mad that her plan didn't work, but soon realizes how pushy and manipulative she is, she ends up being killed. Read at your own risk.
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Fishier than Normal: A Lockwood and Co AU Outline by OreoPudding
Fandoms: Lockwood & Co. - Jonathan Stroud, Lockwood & Co. (TV), H2O: Just Add Water
29 Aug 2025
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What if one of the water-filled passages under Aickmere’s was a moonpool?
Can Lucy Carlyle handle being ‘no ordinary girl’ in more ways than one?
Your honor, Rikki Chadwick and Lucy Carlyle are basically the same person, anyway.
They are my favs 🔥🤍