H2O: Just Add Water Crossovers
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Power Rangers Super Nitroforce by RomarioGoRace
Power Rangers Super Nitroforce. It came back against this day in time so the season 2 is coming right away here in new york tri-state
Crossover - Power Rangers & H2O: Just Add Water - Rated: K - English - Supernatural/Sci-Fi - Chapters: 14 - Words: 20,411 - Updated: 11/14 - Published: 1/15 - Adelle F., Sarah T., Rikki C.
Mermaid in Manhattan by Catdragon513 reviews
Moving to New York wasn't exactly the worst thing to happen to mermaid Jacqueline Thompson. She was prepared to be content with her new life, that was until some twist of fate exposed her secret to some of the most dangerous people in the world, the Avengers. Now she has to deal with a new school, a new city, and a new life. (ABANDONED AND CROSSPOSTED TO AO3)
Crossover - H2O: Just Add Water & Avengers - Rated: T - English - Fantasy/Adventure - Chapters: 39 - Words: 68,282 - Reviews: 106 - Favs: 165 - Follows: 181 - Updated: 9/22 - Published: 8/16/2013 - Cleo S., Captain America/Steve R., Iron Man/Tony S., Nick F. - Complete
Broken by KathxxHayley
Allison woke up to Australia with a surprise. She felt the contact of the three mermaids walked into earth. She sense them with her travel with his brother Luther. Lewis woke them up on the ship accidentally and lewis said he felt their pressence of being mermaids too. But he is wrong.
Crossover - H2O: Just Add Water & Umbrella Academy - Rated: K+ - English - Romance/Hurt/Comfort - Chapters: 1 - Words: 1,061 - Published: 9/12 - Allison H./The Rumor, Cleo S., Emma G., Sophie B.
Perdida by usaguilove95
Una joven sirena que quiere saber más de su pasado se aventura en tierra firme para poder encontrar a su familia biologica
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K - Spanish - Fantasy/Adventure - Chapters: 7 - Words: 7,021 - Updated: 8/29 - Published: 7/14/2020
Hunger Games - Just Add Water by The Emeralking
in District Four Emma Gilbert volunteers to save Cleo Sertori from being sent into the 74th Hunger Games. Can she survive? How will the people of Panem react to her big secret being revealed?
Crossover - H2O: Just Add Water & Hunger Games - Rated: T - English - Adventure/Romance - Chapters: 5 - Words: 5,258 - Favs: 2 - Follows: 1 - Updated: 8/15 - Published: 8/12 - Emma G., Ash D., Katniss E., Finnick O.
Natant by MiraculousDragonMaster reviews
Four teenage boys have their lives changed forever when they discover that they become something incredible when they get wet. Now they must rely on each other as they try to live as normal as they could. Who can they trust, and how hard can it be to keep such a big and fishy secret? Natant: swimming or floating. My four favorite fandoms in a world based off "H2O: Just Add Water."
Crossover - Miraculous: Tales of Ladybug & Cat Noir & H2O: Just Add Water - Rated: K+ - English - Adventure/Friendship - Chapters: 3 - Words: 31,437 - Reviews: 1 - Favs: 7 - Follows: 8 - Updated: 6/14 - Published: 8/15/2021
A New Life for Charlotte by Voltaire's Writer
What if Charlotte was given a second chance at happiness? The only thing that she leaves behind her on Earth is an apology letter to her friends, but will they forgive her for treating them so horribly? Find this out and more in the Story. [Warning this story also includes the events of the Hobbit] Disclaimer: I do not own H2O: Just Add Water, Hobbit, or Lord of the Rings.
Crossover - Lord of the Rings & H2O: Just Add Water - Rated: K - English - Chapters: 7 - Words: 19,981 - Favs: 3 - Follows: 3 - Updated: 6/14 - Published: 4/12
Children of the Sea by Voltaire's Writer
This is story Connected to A New Life for Charlotte, and it tells of the other girls adventures in Middle-Earth. Though Charlotte does show up from time to time. Disclaimer: I do not own H2O: Just Add Water, Mako Mermaids, Hobbit, or Lord of the Rings
Crossover - Lord of the Rings & H2O: Just Add Water - Rated: K - English - Chapters: 5 - Words: 13,579 - Favs: 1 - Follows: 1 - Updated: 6/14 - Published: 4/26
Morgan Kazuo Potter by Jungkookie16 reviews
Normalement quand vous constatez que vos parents vous laisse de côté pour votre frère, c'est parce qu'il a des problèmes et il a besoin de soutien. Sauf que c'est tout le contraire avec moi. Avec mes parents qui me laisse complètement livrer à moi-même à un très jeune âge. C'est mon histoire, je m'appelle Morgan Kazuo Potter. MPREG, Power!oc,Vit avec les grandparents, Merman
Crossover - Harry Potter & H2O: Just Add Water - Rated: T - French - Adventure/Romance - Chapters: 6 - Words: 6,742 - Reviews: 6 - Favs: 26 - Follows: 29 - Updated: 5/29 - Published: 7/7/2019
Water and Lightning by Ethere Mystique
Recently in Central City, a particle accelerator exploded, unleashing a wave of dark matter and unlocking powers in certain people. The Flash races to contain the new criminals cropping up. For years I've been living in the city, hiding my powers and my true self from my friends. But how can I continue to hide when I've got the power to do something, to help?
Crossover - Flash & H2O: Just Add Water - Rated: T - English - Adventure/Drama - Chapters: 2 - Words: 2,987 - Favs: 2 - Follows: 1 - Updated: 5/22 - Published: 5/8 - Barry A./The Flash, Eobard T./Impostor Harrison W./Reverse-Flash, OC
Olimpic waters by wittybookreader reviews
After the Titan War, the gods gift the 7 a trip to the "safest" country they know, but that won't last long.
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: T - English - Adventure/Friendship - Chapters: 18 - Words: 7,930 - Reviews: 8 - Favs: 10 - Follows: 8 - Updated: 2/14 - Published: 2/10/2021 - [Annabeth C., Percy J.] Rikki C., Cleo S.
mermaids and ninja by numpotatogal
The ninja decide to go on a 2-week camping trip on an island off the coast of Australia called mako. Everythings is fun and games till Jay falls down a hole while exploring the island with 3 of his other brothers. Chaos ensues. (this is a one-shot but if I get a request ill make another chapter/ slight au/ OC/no ships except jaya/Ninjago H2O crossover/ mermaid/mermen/cryptor morro)
Crossover - H2O: Just Add Water & Ninjago - Rated: T - English - Humor/Family - Chapters: 1 - Words: 2,470 - Favs: 3 - Follows: 2 - Published: 2/7 - Kai, Jay, General Cryptor, Morro
Merpeople vs Humans by strikerstories reviews
Merpeople exist! After many unexplained phenomena that begin to bring chaos and destruction to the world, the world of mermaids and mermen are exposed to the people of earth. War threatens to break out. Mako Island has more secrets that are revealed and an all powerful, out of control mermaid must be stopped.
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: T - English - Fantasy/Suspense - Chapters: 11 - Words: 21,856 - Reviews: 16 - Favs: 11 - Follows: 4 - Updated: 12/18/2021 - Published: 8/11/2016 - Charlotte W., OC, Zac B., Mimmi - Complete
Emma Agreste by CatGirl23 reviews
Emma finds out she is the daughter of Marinette and Adrien Agreste
Crossover - H2O: Just Add Water & Miraculous: Tales of Ladybug & Cat Noir - Rated: T - English - Chapters: 4 - Words: 1,272 - Reviews: 6 - Favs: 9 - Follows: 11 - Updated: 10/10/2021 - Published: 6/18/2020 - Emma G., Marinette D-C./Ladybug, Adrien A./Cat Noir
The Mermaid of Forks by CaitlynDreamsofMagicalThings reviews
Luna Taylor has spent her whole life in private, moving around to protect herself and her family. Now forced to leave her friends in Australia, Luna and her mom must move to the rainiest place in America: Forks, Washington. There, Luna attracts the attention of the Cullen family and her secret is at risk, Luna cant help but wonder. Who are the Cullens? What is her link to Forks?
Crossover - H2O: Just Add Water & Twilight - Rated: T - English - Romance/Drama - Chapters: 6 - Words: 12,371 - Reviews: 5 - Favs: 52 - Follows: 53 - Updated: 9/18/2021 - Published: 4/1/2021 - OC, Edward, Alice, Jasper
H20 Power Rangers Samurai Jayden x OC by keytomyheartmyimmortal reviews
Okay this story is different from my other one, I had a story request for a h20 just add water story crossover with power rangers with a OC character instead of Mia. here is a little bit , i am still working on it
Crossover - Power Rangers & H2O: Just Add Water - Rated: K - English - Romance - Chapters: 6 - Words: 3,849 - Reviews: 1 - Favs: 2 - Updated: 9/8/2021 - Published: 8/26/2021 - Jayden, Cleo S., Emma G., Bella H.
Moon Blessed by AbyssUnknown reviews
Twelve-year-old Harry Potter is saved by Magic and gifted with the ability to be a merman. With his world turned upside down with this new ability and its corresponding powers, Harry's survival instincts kick in as he realises he can no longer continue fitting in if he were to guard his new secret from those willing to exploit him. !IndependentHarry !GreyHarry !Non-canon-compliant
Crossover - Harry Potter & H2O: Just Add Water - Rated: T - English - Friendship/Fantasy - Chapters: 19 - Words: 123,931 - Reviews: 140 - Favs: 492 - Follows: 618 - Updated: 8/9/2021 - Published: 8/18/2019 - Harry P., Sirius B.
Mystic Force: Magic of the Ocean by Aquaprincess3 reviews
With the threat of Mesogog over and having graduated from high school, Kaitlyn believed her time as a Power Ranger was finished and her life would finally settle. Yet when she and Nick offer their aid to an old man, Kaitlyn finds that what she thought she knew about herself will be forever changed as she's thrown back into the world of morphers and Megazords.
Crossover - Power Rangers & H2O: Just Add Water - Rated: T - English - Romance/Family - Chapters: 1 - Words: 2,818 - Reviews: 8 - Favs: 24 - Follows: 23 - Published: 7/30/2021 - [OC, Conner M.] Xander, Clare
the moon and the blood and the sea and the past by rosesnblueberries reviews
New Orleans, Louisiana is the next stop to Lewis and Cleo's as of yet fruitless global search for other magical creatures. When she's mistaken for someone else, the door to what they've been searching for may finally be open. Under the Sea Take Two. Crossposted to AO3.
Crossover - H2O: Just Add Water & Originals - Rated: K - English - Supernatural - Chapters: 1 - Words: 5,710 - Reviews: 2 - Favs: 20 - Follows: 18 - Published: 6/17/2021 - Cleo S., Lewis M., Klaus M., Hayley Marshall - Complete
Moonstruck by Littlest Cactus reviews
In a few hours, the full moon is set to rise. Rikki really shouldn't be swimming about. And then she sees the boy with skin like diamond.
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Friendship/Supernatural - Chapters: 5 - Words: 7,000 - Reviews: 23 - Favs: 83 - Follows: 94 - Updated: 6/15/2021 - Published: 5/31/2021 - Edward, Rikki C.
Camp Camp: a summer of secrets by Maldog22344 reviews
Campbell Campers, Max, Nikki, and Neil find an island after trying to escape. They’re in for some magical surprises
Crossover - H2O: Just Add Water & Camp Camp - Rated: T - English - Humor/Supernatural - Chapters: 2 - Words: 1,731 - Reviews: 3 - Favs: 3 - Follows: 2 - Updated: 5/26/2021 - Published: 5/18/2020 - Max, Neil, Nikki, David
Power Rangers Nitroforce S1 E11 by RomarioGoRace
Cole trying with his friends. To get them out of them her name a girl nikki. Rival grasshopper moving in there by the in new york and then. Rikki moves to hawaii to new york tri-state. On each of them rikki telling she's can breath on her mouth and her bleeding body
Crossover - Power Rangers & H2O: Just Add Water - Rated: K - English - Supernatural/Sci-Fi - Chapters: 1 - Words: 1,358 - Published: 5/22/2021 - Adelle F., Sarah T., Rikki C.
H2O just add wild by Bryce Brownscombe reviews
After saving the world from Comet Eva, a piece of the comet has landed in Africa. the gang journeys to Africa to look for the piece of the comet, there they meet the pride landers and discover a new moonpool.
Crossover - Lion King & H2O: Just Add Water - Rated: K+ - English - Fantasy - Chapters: 21 - Words: 33,482 - Reviews: 4 - Favs: 3 - Follows: 2 - Updated: 4/18/2021 - Published: 7/2/2020 - Complete
Scaly Tailed Mentor by ArchMagister379 reviews
After an incident with a glowing jewel pendant, Harry finds himself in the H20 universe with some new powers. A year later, the moon has done it magic and left three new mermaids in the clear ocean of Australia. After Harry discovers the three new mermaids, he becomes a mentor to the three girls. With a powerful wizard/merman as their mentor, what could possibly go wrong? OOC Harry
Crossover - Harry Potter & H2O: Just Add Water - Rated: T - English - Chapters: 3 - Words: 4,122 - Reviews: 48 - Favs: 287 - Follows: 345 - Updated: 2/26/2021 - Published: 1/11/2015
Dino Thunder: The Ocean's Roar by Aquaprincess3 reviews
When Kaitlyn moves to Reefside to finish her senior year of high school, she, along with three fellow students discover powerful gems and become the Dino Thunder Power Rangers. But being a Ranger isn't the only secret Kaitlyn's hiding. She'll not only have to learn how to trust her team with her secrets, but also discover someone just like her. Characters updated.
Crossover - Power Rangers & H2O: Just Add Water - Rated: T - English - Fantasy/Romance - Chapters: 29 - Words: 122,025 - Reviews: 76 - Favs: 128 - Follows: 101 - Updated: 2/24/2021 - Published: 12/21/2015 - [Conner M., OC] Nick - Complete
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