H2O: Just Add Water Crossovers
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Tortured Light by PepperTwist reviews
A few months ago, Charlotte would've dreaded moving to the rainiest place in North America. But now, no longer a mermaid, she doesn't have to worry about that, or anything supernatural. But it doesn't seem like the mythical world is done with her quite yet.
Crossover - Twilight & H2O: Just Add Water - Rated: K - English - Supernatural/Drama - Chapters: 8 - Words: 6,570 - Reviews: 21 - Favs: 6 - Follows: 11 - Updated: 5/24 - Published: 5/23/2013
First a Mermaid, Now a Slayer by MiLady TARDIS reviews
Charlotte wasn't meant to be a mermaid, but she was born to be a Slayer.
Crossover - Buffy: The Vampire Slayer & H2O: Just Add Water - Rated: K - English - Supernatural/Friendship - Chapters: 19 - Words: 15,803 - Reviews: 35 - Favs: 10 - Follows: 21 - Updated: 5/24 - Published: 10/29/2012 - Willow R., Charlotte W.
House of Mermaids by Emily625 reviews
When Nina's cousin Cleo comes to school at Anubis house, things will get out of hand and secrets will be revealed, romances will be unleashed. But will a certain red headed enemy join the school too?
Crossover - H2O: Just Add Water & Het Huis Anubis/House of Anubis - Rated: T - English - Drama/Romance - Chapters: 5 - Words: 3,765 - Reviews: 6 - Favs: 5 - Follows: 7 - Updated: 5/23 - Published: 10/16/2014 - [Cleo S., Jerome C.] Charlotte W., Nina M.
Float by Spiziri reviews
The end of the summer is rapidly approaching for our heroes, but Sally has one last adventure for Percy and Annabeth in Australia.
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: K+ - English - Fantasy/Humor - Chapters: 5 - Words: 5,566 - Reviews: 2 - Favs: 2 - Follows: 7 - Updated: 5/20 - Published: 5/13
Piper's Tail by CHBNewRomeHogwartsBerk reviews
What if Piper had a tail during the Seven's Quest? What happens if the rest of the Seven find out? First Fanfic, please read and review! Takes place during The Mark Of Athena.
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: K - English - Chapters: 8 - Words: 6,127 - Reviews: 19 - Favs: 3 - Follows: 12 - Updated: 5/19 - Published: 2/19
Dino Thunder: The Ocean's Roar by Aquaprincess3 reviews
When Kaitlyn is forced to live with her cousin in Reefside, she and four other student's are thrown into the life of being the earth's newest protector's. But being the Silver Dino Ranger isn't the only secret Kaitlyn has to hide from the world. Can she trust her new friends and teammates with this secret? Or will it break them up?
Crossover - Power Rangers & H2O: Just Add Water - Rated: T - English - Fantasy/Drama - Chapters: 11 - Words: 43,524 - Reviews: 21 - Favs: 12 - Follows: 17 - Updated: 5/13 - Published: 11/16/2014 - Conner M., Ethan J.
Mermaids and demigods? by Diamondsgirl reviews
Basically just the demigods meet the mermaids. No Flames! It's my first fanfic. T cos' I'm paranoid :D
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: T - English - Chapters: 9 - Words: 5,958 - Reviews: 21 - Favs: 4 - Follows: 12 - Updated: 5/6 - Published: 2/25 - [Annabeth C., Percy J.] Cleo S., Bella H.
The Mermaid Avenger by Forever hero girl reviews
A mermaid, Alex Stark, the niece of Tony Stark, is living a normal life in NYC, well a normal life for a girl with mermaid powers. What happens when she gets mixed up in her Uncle's avenger business? So what's a girl to do when SHIELD is after the secrets of your tail and you dosn't want to give them up? Madness, powers, a few laughs maybe, little bit of language. CROSSOVER EPIC!
Crossover - Avengers & H2O: Just Add Water - Rated: T - English - Adventure/Fantasy - Chapters: 14 - Words: 56,417 - Reviews: 43 - Favs: 48 - Follows: 53 - Updated: 5/2 - Published: 8/3/2014
Sabrina the Teenage Witch: Meets The H20 mermaids by kyubi2020
Set after soul mates and Graduation. After marriage Sabina and Harvey moved back into the aunts' old Victorian house with Sabina staring her new teaching job at her old high school and Harvey also starting his job, but as a strange evil tried to make their move against the mortal world. The arrival of Cleo, Nikki and Bella soon begins the events. Bethany/Amanda.
Crossover - Sabrina the Teenage Witch & H2O: Just Add Water - Rated: T - English - Adventure - Chapters: 1 - Words: 5,238 - Published: 4/30 - OC
Just Add The Originals by Crossover Specialist reviews
What happens when the mermaids meet the vampires? Extraordinary. Read and watch as a tale of love, deceit, and hunger for power plays out. Watch as families are reunited and torn apart. Hopefully, a lot better than it sounds.
Crossover - H2O: Just Add Water & Originals - Rated: T - English - Supernatural/Family - Chapters: 2 - Words: 1,925 - Reviews: 1 - Favs: 1 - Follows: 2 - Published: 4/29
H2O: Just add Winter by legend fanatic reviews
Lewis has another person he loves, mabey even more then Cleo? Will Cleo be jealouse? Sawyer and Hazel come to Australia because Clear Water has been attacked, but just how far will this new girls ties go with their new friends and their old ones? Cleo/Lewis Bella/Will Emma/Ash Rikki/Zane (eventually) Hazel/Sawyer Jenna/Carson (My charicters)
Crossover - H2O: Just Add Water & Dolphin Tale - Rated: K - English - Romance/Tragedy - Chapters: 4 - Words: 1,716 - Reviews: 7 - Favs: 2 - Follows: 2 - Updated: 4/21 - Published: 1/23 - Emma G., Charlotte W., Louise C., Sawyer N.
Swimming in twilight by Nessie090603 reviews
What if the girls from H20 bump into Edward and find out his and the cullens secret?
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Romance/Fantasy - Chapters: 2 - Words: 944 - Reviews: 2 - Favs: 2 - Follows: 5 - Updated: 4/19 - Published: 2/24 - Bella, Edward, Rikki C., Bella H.
Triple by nina19123 reviews
Honestly am not sure how or why I wrote this. I remember writing this last summer and recently found it. decided to post it and go from there. I also SUCK at summaries so I can't really give you a description on what it'll be like. It'll mostly be focused on Cleo and i'll probably add more characters along the way but that's all I can say right now.
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Supernatural/Friendship - Chapters: 2 - Words: 3,573 - Reviews: 5 - Favs: 1 - Follows: 7 - Updated: 4/17 - Published: 3/4
I Just Want to Go Home by Rikkiemerson reviews
If the comet hit Mako and Acnologia hadn't attacked Tenrou. Some AU. Set at the end of season 3 for H2O and just before the end of the S-Class trial for Fairy Tail. Warning: Spoilers. Hope you like it!
Crossover - Fairy Tail & H2O: Just Add Water - Rated: K+ - English - Adventure/Friendship - Chapters: 2 - Words: 1,132 - Reviews: 5 - Favs: 2 - Follows: 8 - Updated: 4/14 - Published: 3/6
H2O101 by MermaidAmber reviews
A little story that I thought up...Summery inside
Crossover - Zoey 101 & H2O: Just Add Water - Rated: K+ - English - Romance/Fantasy - Chapters: 8 - Words: 6,775 - Reviews: 33 - Favs: 23 - Follows: 31 - Updated: 4/6 - Published: 3/21/2011
Kickin' it As A Mermaid by Fairylover2095901 reviews
The Wasabi Warriors are heading to Australia for an international karate tournament. But just a few weeks before the tournament, Kim 'accidentally' stumbles upon the moon pool on a full moon and, you guessed it, turns into a mermaid with a lot of power. How will Kim cope with her new self? Will she tell the others? And will her new friends help her out? Read this to find out!
Crossover - H2O: Just Add Water & Kickin' It - Rated: K - English - Adventure/Fantasy - Chapters: 2 - Words: 6,777 - Reviews: 5 - Favs: 2 - Follows: 3 - Published: 4/6
Tails In Forks by ObsessedwReading reviews
Maya Green is no ordinary girl and neither are her friends Taylor, Ellie, and Brooke. They're mermaids. And living in the rainest place in the US is not the best place for these mermaids. Along the way they encounter Imprinting, Vampires, Werewolfs, as well as normal teenage girl problems.
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Supernatural/Friendship - Chapters: 12 - Words: 13,207 - Reviews: 52 - Favs: 37 - Follows: 58 - Updated: 4/5 - Published: 6/26/2013 - Seth, Brady
Just Add Smallville by Slybrat reviews
Clark and Kara are both in High School in this story. When Clark's family leaves Smallville and moves to Australia he is reunited with his cousin Cleo and he meets her beautiful friend Emma and sparks instantly fly. See how they become closer when someone very special comes into their life. Will their love survive when everyone's life's are put at risk?
Crossover - Smallville & H2O: Just Add Water - Rated: T - English - Romance/Drama - Chapters: 39 - Words: 30,608 - Reviews: 53 - Favs: 12 - Follows: 14 - Updated: 3/11 - Published: 9/25/2012 - Clark K./Superman, Emma G.
No Coward Soul by Bathyal reviews
A year later, the three girls who had gotten lost at sea for a whole day the summer before year ten were about to enter year twelve. One of them had won gold in States in competitive swimming, one of them had taken up martial arts, and one formed a small tutoring business with her best friend and his girlfriend. Everything was normal.
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: T - English - Drama/Fantasy - Chapters: 10 - Words: 19,115 - Reviews: 11 - Favs: 4 - Follows: 6 - Updated: 3/9 - Published: 1/3 - Rikki C., Will B., Cam, Evie
A Timeline of Mako Island by fictionlover94
A timeline of mako mermaids and h2o events that line the series. Includes spoilers for season 2 and season 3 of Mako Mermaids. Enjoy and review!
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K - English - Chapters: 1 - Words: 680 - Favs: 5 - Follows: 2 - Published: 2/24 - Complete
The Dark Side of the Moon H2O&MM Xover by mermaidbyheart reviews
Zac and the girls are somehow thrown into the H2O world. Trying to figure out a way back home, they have to cope with many complications. They'll face a lot of difficulties, including being affected by the crystal necklaces. The H2O gang will also face new challanges like the stone of the trident and many more. What will be the reaction of the two gangs when they finally meet?
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K+ - English - Adventure/Mystery - Chapters: 7 - Words: 12,509 - Reviews: 31 - Favs: 39 - Follows: 49 - Updated: 2/20 - Published: 2/17/2014 - Rikki C., Cleo S., Lyla, Zac B.
The Fairy Chronicles Book 1 Mermaid and Fairy Magic by Max Nightshade reviews
A girl named Zoey finds a moon pool and turns into a mermaid and fairy. P.S. Has a little Fairy Tail and Sword Art Online. Disclaimer: I do not own H2o, Winx Club, Fairy Tail, or Sword Art Online
Crossover - Winx Club & H2O: Just Add Water - Rated: K+ - English - Adventure/Romance - Chapters: 4 - Words: 1,476 - Reviews: 2 - Favs: 1 - Follows: 1 - Updated: 2/14 - Published: 11/18/2014
Deep Red by Sellybelly411 reviews
Emma has returned to Australia! Cleo, Rikki, and Bella are overjoyed to have her back. Lyla, Nixie, and Sirina are having trouble re-gaining Zac's trust. Meanwhile there's some trouble brewing in the sky. A blood moon. It can turn our four into permanant mermaids forever. Can Lyla and the others figure out what they are before it's to late?
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K+ - English - Fantasy/Adventure - Chapters: 7 - Words: 3,312 - Reviews: 19 - Favs: 10 - Follows: 9 - Updated: 2/14 - Published: 1/9
H2o just add Avatar by Max Nightshade reviews
Disclaimer: I do not own Avatar the Last Airbender or H2o just add water Katara goes to Austrailia for the summer and gets turned into a mermaid how is she going to hide her tail when she is a water bender
Crossover - Avatar: Last Airbender & H2O: Just Add Water - Rated: K+ - English - Adventure/Drama - Chapters: 2 - Words: 570 - Reviews: 2 - Favs: 1 - Follows: 3 - Updated: 2/12 - Published: 11/29/2014 - Gaang, Rikki C., Cleo S., Emma G.
el principe del mar se convierte en mitad pez by Rete2212 reviews
El titulo lo dice cssi todo. Pero aca esta mas detallado percy va con su mama a visitar a su tia y a su nuevo esposo a australia. Cuando una noche decide ir a nadar a una isla donde entra a uns pequeña cueva en el fondo de un volcán
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: T - Spanish - Chapters: 3 - Words: 3,147 - Reviews: 3 - Favs: 8 - Follows: 7 - Updated: 2/5 - Published: 11/30/2014 - Percy J., Rikki C., Cleo S., Bella H.
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