H2O: Just Add Water Crossovers
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Mascara, Tears and Fish Tails by GracyFrostyPhantom reviews
The Mansons have to move to Australia and Sam quickly make friends with Lone Wolf Rikki. Emma and Cleo remind Rikki to be careful with their 'secret' now Sam's around, but when Rikki is struck by the full moon, she can't help herself and drags Sam to Mako Island...
Crossover - Danny Phantom & H2O: Just Add Water - Rated: K+ - English - Fantasy/Drama - Chapters: 9 - Words: 10,234 - Reviews: 65 - Favs: 23 - Follows: 54 - Updated: 14h ago - Published: 6/21/2012 - Sam M., Rikki C.
My H2O Just Add Water: Season 1 by Aquaprincess3 reviews
After being forced to move to Australia by her new stepmother; Sabrina want's nothing more then to go back home, but her mind suddenly gets change after meeting Emma, Rikki, and Cleo, and a night under the full moon at Mako. But as she quickly starts to adjust to her new life in the gold coast; Sabrina discovers dark secrets that will change her entire life forever!
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K+ - English - Fantasy/Drama - Chapters: 8 - Words: 14,694 - Reviews: 15 - Favs: 8 - Follows: 11 - Updated: 4/17 - Published: 7/19/2013 - Rikki C., Cleo S., Emma G., OC
The Fighting Fish by Rkatp reviews
When Cameron Hayes, or Cammie, moves from sunny Australia to New York, a whole lot can happen. What happens when she is attacked on her first day of school and attracts SHIELD's attention? How is she gonna get out of this mess? Will she keep the secret, or will it be exposed for the government? Rated for Language.
Crossover - H2O: Just Add Water & Avengers - Rated: T - English - Chapters: 5 - Words: 12,782 - Reviews: 24 - Favs: 24 - Follows: 33 - Updated: 4/16 - Published: 6/15/2013 - Elliot G., Iron Man/Tony S., Thor, Nick F.
The Moon Pool by SayaKisaragi Blood reviews
Bella's whole life changed when she fell into a whole and jumped into the moon pool. She didn't expect to get a fishy surprise when she took a bath the next morning. How will Bella keep this secret without exposing herself to Charlie or Jacob?
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Romance/Adventure - Chapters: 2 - Words: 1,290 - Reviews: 2 - Favs: 6 - Follows: 9 - Published: 4/15 - [Bella, Jacob]
Of Mermaids and Wizards by ScarlettAnderson99 reviews
3 girls, mermaids, are lost at Hogwarts. They make friends there and think its all good. But evil is brewing. And they are going to help, even if Dumbledore doesn't want them to.
Crossover - Harry Potter & H2O: Just Add Water - Rated: T - English - Adventure/Friendship - Chapters: 3 - Words: 3,294 - Reviews: 1 - Favs: 2 - Follows: 2 - Updated: 4/15 - Published: 2/1
Merpires by sibuna4everfabina reviews
After Edward left Bella she met Emma Cleo said Rikki and become Merpires what happens when they go to Forks and see the Cullens. Better then it sounds.
Crossover - Twilight & H2O: Just Add Water - Rated: K+ - English - Romance/Drama - Chapters: 12 - Words: 3,847 - Reviews: 9 - Favs: 7 - Follows: 9 - Updated: 4/14 - Published: 3/10 - Bella, Cleo S., Emma G.
The Mermaid who lives in Forks by T-awesomexoxo reviews
When Cleo has to move to Forks new problems arise, what will Cleo do about it? I know the summary sucks but read an review, mignt change to an M rating later. Chapter 1 re-make is up!
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Supernatural/Romance - Chapters: 6 - Words: 17,102 - Reviews: 12 - Favs: 18 - Follows: 22 - Updated: 4/13 - Published: 3/10/2013 - Seth, Cleo S.
First a Mermaid, Now a Slayer by MiLady TARDIS reviews
Charlotte wasn't meant to be a mermaid, she was born to be a Slayer.
Crossover - Buffy: The Vampire Slayer & H2O: Just Add Water - Rated: K - English - Supernatural/Friendship - Chapters: 12 - Words: 9,310 - Reviews: 19 - Favs: 6 - Follows: 12 - Updated: 4/11 - Published: 10/29/2012 - Willow R., Charlotte W.
H20: Just add zombies by Mermaidh2o reviews
The apocalypse in another eyes. Cleo and the gang already have a crazy life, what if we added zombies? 1 review for next chapter.
Crossover - H2O: Just Add Water & Walking Dead - Rated: T - English - Drama/Fantasy - Chapters: 1 - Words: 389 - Reviews: 1 - Published: 4/11 - Rikki C., Cleo S., Bella H., Carl G.
The New Mermaid Ranger by Aquaprincess3 reviews
The other mystic rangers thought that Nick didn't have any biological siblings, so when Nick's sister Kaitlyn suddenly shows up in Briarwood, everybody's quickly taken by surprise, but what the mystic force rangers dont know is that Kaitlyn has her own set of secrets, and that something's are about to happen that will take the whole team by total complete shock and surprise!
Crossover - Power Rangers & H2O: Just Add Water - Rated: K+ - English - Adventure/Fantasy - Chapters: 2 - Words: 1,773 - Reviews: 1 - Favs: 2 - Follows: 2 - Updated: 4/7 - Published: 4/6
Mermaids and Demi-gods VS Gaea by The Greatest Daredevil reviews
Ok I stink at summary's but here it go's. What happens when the Argo 2 stops in Australia for some help? What happens when that help ends up being the H2O mermaids? well read this to find out, PLEASE DON'T SKIP. THIS IS MY FIRST STORY SO GO EASY. Also I know it says rated K but really a 5 year old can read this. Its just that rated K is the lowest so.
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: K - English - Adventure/Humor - Chapters: 5 - Words: 6,926 - Reviews: 11 - Favs: 3 - Follows: 6 - Updated: 4/5 - Published: 2/27 - Annabeth C., Percy J., Rikki C., Cleo S.
Something Fishy by Jyuoa reviews
Set during Season 4 of TVD. While exploring the island, Elena, Bonnie, and Rebekah fall into the Moon Pool. After they return home and undergo some changes, they make an alliance to keep their new powers a secret. Luckily for them, Elena's cousin Emma, as well as Cleo, Rikki, and the guys are visiting Mystic Falls after Emma sees them swimming near the island.
Crossover - H2O: Just Add Water & Vampire Diaries - Rated: T - English - Friendship/Romance - Chapters: 3 - Words: 5,551 - Reviews: 4 - Favs: 7 - Follows: 11 - Updated: 3/30 - Published: 2/9
A Start Of A New Life by MyLifeofWriting reviews
Tasha got a new job, but here's the problem. Her new job is in Australia though. The Davenport family moves to Australia, but on the way they meet the H2O gang. Secrets will be revealed, new love will be found. A certain someone develops feelings for Chase. Rated T Slight cursing? Enjoy! R&R. If you're wondering if there's Brase, read and find out.
Crossover - H2O: Just Add Water & Lab Rats, 2012 - Rated: T - English - Humor/Romance - Chapters: 5 - Words: 9,389 - Reviews: 14 - Favs: 8 - Follows: 13 - Updated: 3/23 - Published: 8/24/2013
Mermaid Suicide by Nemesis247
When Nemesis is walking along the beach, she finds the dead bodies of the Mako Mermaids and H2O stars. But how did they get there? Join Nemesis on her investigation to find out the truth.
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: T - English - Tragedy/Drama - Chapters: 2 - Words: 1,952 - Favs: 1 - Follows: 1 - Published: 3/22 - Complete
The Mermen Tails by H2Ozikkiaddict reviews
Two worlds: the Mako gang and the H20 club, collide when Will spots Zac as a merman. Will becomes so jealous of merpeople, he forces Zac to get him in the moon pool on a full moon, and Will becomes a merman! Meanwhile, Nixie, Lyla, Cleo, and Rikki are fighting over who should rightfully own the moon pool, while Sirena and Bella have become friends. - Carried on from MissKatnisSwift
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K - English - Hurt/Comfort/Friendship - Chapters: 8 - Words: 8,676 - Reviews: 9 - Favs: 3 - Follows: 4 - Updated: 3/22 - Published: 2/10
The Dark Side of the Moon H2O&MM Xover by mermaidbyheart reviews
Serena, Lyla, Nixie and Zac are somehow thrown into the H2O world. Trying to figure out a way back home, they have to cope with many complications including being affected by the crystal necklaces...
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K+ - English - Adventure/Mystery - Chapters: 3 - Words: 6,068 - Reviews: 10 - Favs: 14 - Follows: 20 - Updated: 3/22 - Published: 2/17 - Rikki C., Cleo S., Zac B., Lyla
Is That A Tail! by Bibliophilic12 reviews
Em and Emily are back! Only this time, we're in Australia. Visiting Em's cousin Emma after she got back from her world tour. We have our secrets to keep and they have theirs. Will all of our secrets be found out? Disclaimer: I don't own Percy Jackson or H2O
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: K+ - English - Chapters: 2 - Words: 1,297 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 3/19 - Published: 3/8 - Annabeth C., Percy J., OC, Emma G.
There are 2 Z's in Zikki by H2Ozikkiaddict reviews
One shot - Zac knows Rikki is a mermaid, she knows he is a merman. Rikki has one other secret though that Zac is determined to squeeze out. Zac/Rikki Zane/Rikki - ZIKKI!
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K - English - Friendship/Romance - Chapters: 2 - Words: 280 - Reviews: 1 - Updated: 3/16 - Published: 3/12 - Complete
Camki (Cam & Rikki) by H2Ozikkiaddict reviews
As far as I'm aware this is one of the first if not THE FIRST Cam and Rikki fanfic crossover. When Cam meets Rikki, what happens? Will they love or hate eachother? - One Shot
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K - English - Friendship/Humor - Chapters: 2 - Words: 307 - Reviews: 3 - Updated: 3/16 - Published: 3/10
The Mermaid and the Merwolf by ObsessedwReading reviews
When Bella runs off she falls into a cave and Leah comes to her rescue. They find a moonpool and escape through the underwater entrance. After that the next day when they touch water they grown long orangish-brown scaly mermaid tails. What does fate have in store for theses two new friends?
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Friendship/Fantasy - Chapters: 4 - Words: 3,769 - Reviews: 77 - Favs: 54 - Follows: 78 - Updated: 3/14 - Published: 3/24/2013 - Bella, Leah
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: 11 - Words: 12,545 - Reviews: 40 - Favs: 28 - Follows: 45 - Updated: 3/14 - Published: 6/26/2013 - Seth, Brady
Ocean Girls: Just Add Water by ObsessedwReading reviews
Bella sees a girl swimming with a migrating humpback whale. Who is this mysterious girl? A Neri and Bella Friendship story.
Crossover - Ocean Girl & H2O: Just Add Water - Rated: K+ - English - Sci-Fi/Fantasy - Chapters: 10 - Words: 8,248 - Reviews: 20 - Favs: 9 - Follows: 15 - Updated: 3/14 - Published: 9/15/2012 - Bella H.
Crossing Tails by ObsessedwReading reviews
Shortly after Cleo, Emma, and Rikki are changed into mermaids they end up in another world (Mako Mermaids universe) Where none of them or their families exist. How will they get home? How will they adjust? and how will the other mermaids react when they find out about them? Zac X Lyla Might have Clewis later on as well.
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: T - English - Adventure/Mystery - Chapters: 7 - Words: 7,283 - Reviews: 42 - Favs: 32 - Follows: 47 - Updated: 3/14 - Published: 9/26/2013
Girl Meets World by MrInigo1995-TeamJacobInigo reviews
Bella has a relationship with Edward Cullen and she is feeling great with it. When she reveals a secret about him, he dumps her and she is heartbroken. Angela and Jessica take a vacation at Belgium. And then just when she thought it was normal...
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Romance/Fantasy - Chapters: 11 - Words: 35,229 - Reviews: 23 - Favs: 22 - Follows: 28 - Updated: 3/14 - Published: 7/25/2011 - Bella, Jacob
The Possible files: Mystery of Mako island by h2o magic19 reviews
hey guys this is my first fan fiction and I've decided that I would do a crossover of "h2o just add water" and my childhood favourite "Kim Possible"
Crossover - Kim Possible & H2O: Just Add Water - Rated: T - English - Adventure/Fantasy - Chapters: 3 - Words: 2,589 - Reviews: 6 - Favs: 1 - Follows: 3 - Updated: 3/9 - Published: 1/13
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