H2O: Just Add Water Crossovers
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New Beginnings by wishfulcreating reviews
After the four original girls return, Mako Island gets turned around. Lying, stealing, love, losing, and mermaids/man. A beautiful tale of what might happen if Emma, Cleo, Bella, and Rikki return along with their beau's Will, Zane, Lewis, and Ash. Charlotte and Evie pair up, as Nixie, Cam, Sirena, David, Lyla, Zac, and the older characters team up.
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K+ - English - Friendship/Sci-Fi - Chapters: 2 - Words: 1,583 - Reviews: 13 - Favs: 25 - Follows: 28 - Updated: 1/4/2014 - Published: 1/1/2014 - Cleo S., Charlotte W., Zac B., Evie
The secrets of Mako by H2Ozikkiaddictsecond reviews
In Mako mermaids we know her as Lyla, in H2O we know her as Lucy Fry. What if I told you the year after Zac became a merman, Emma, Rikki and Cleo became mermaids. Lyla and Zac have been watching out for them since the start. Now everyone has graduated they have to reveal themselves to protect Rikki, Cleo and Bella. What will the other mako mermaids think about all these secrets?
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K - English - Friendship/Hurt/Comfort - Chapters: 1 - Words: 434 - Reviews: 5 - Favs: 9 - Follows: 12 - Published: 1/1/2014
Who's Who? by nina19123 reviews
You thought you knew her. "Cleo?" No secrets between the three of you. "How? When? Why?" She's dangerous, "Cleo, stop! Please!" Fast, "Where'd she go?" And a total badass. "Really, you blew up your house?" But she's not alone. "Back so soon?" "You might know me, but you DON'T know who I am."
Crossover - H2O: Just Add Water & Secret Circle - Rated: T - English - Suspense/Mystery - Chapters: 3 - Words: 2,067 - Reviews: 2 - Favs: 8 - Follows: 7 - Updated: 12/28/2013 - Published: 12/27/2013
H2O: Atlantis by jeanne.summers reviews
AU Charlotte and the girls have come to an uneasy and very fragile truce, with the upcoming moon tensions are high leaving Charlotte to do the only thing that will avoid blood shed: accept the SGC's job offer and join an expidition which may not return.
Crossover - Stargate: Atlantis & H2O: Just Add Water - Rated: T - English - Chapters: 4 - Words: 13,843 - Reviews: 19 - Favs: 25 - Follows: 46 - Updated: 11/22/2013 - Published: 1/27/2010 - Charlotte W.
H2o just add a secret island by Charmedhpgirl reviews
15 years after the girls have graduated, Emma met Bella and the two of them became good friends. When Emma got a new job as a teacher at Suncoast High, she meets fellow mermaid Rita. Emma, Cleo, Rikki and Bella join the pod consisting of Rita, Lyla, Nixie, Sirena and Zac. They have to discover the mystery of Mako Island before it's too late...
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: T - English - Fantasy/Adventure - Chapters: 1 - Words: 727 - Reviews: 12 - Favs: 23 - Follows: 23 - Published: 11/15/2013 - Emma G., Rita S.
A Fishy Secret by BaybieBlue reviews
Emily is hiding a secret. It involves friends in Australia. How will she survive?
Crossover - Power Rangers & H2O: Just Add Water - Rated: T - English - Friendship/Mystery - Chapters: 10 - Words: 7,960 - Reviews: 16 - Favs: 20 - Follows: 17 - Updated: 11/10/2013 - Published: 9/16/2013 - [Jayden, Emily (PRS)] Rikki C., Cleo S. - Complete
Secrets of the Supernatural by DestinyJoyHope reviews
Rikki is heading off to the ghost capital of the world, home of the legendary Danny Phantom. When she befriends Danny's alter-ego, Danny Fenton, how long can they hide their secrets before a certain scientist and bounty hunter changes their lives for good? (Rewritten)
Crossover - Danny Phantom & H2O: Just Add Water - Rated: K+ - English - Fantasy/Adventure - Chapters: 3 - Words: 1,485 - Reviews: 26 - Favs: 38 - Follows: 51 - Updated: 10/27/2013 - Published: 8/1/2013 - [Danny F., Rikki C.]
Water Warriors by goodgirl275 reviews
What will happen when Emma, Cleo, and Rikki literally fall from the sky as cats after Firestar's death? Read to find out! Rating may (most likely won't) go up. (If this summery is terrible, then SORRY! This is also my first fanfic! *Happy Dance*)
Crossover - Warriors & H2O: Just Add Water - Rated: K+ - English - Adventure/Friendship - Chapters: 19 - Words: 13,753 - Reviews: 56 - Favs: 12 - Follows: 9 - Updated: 9/24/2013 - Published: 3/10/2013 - Firestar, Rikki C., Cleo S., Emma G. - Complete
Just Add Percy Jackson by Ardsta reviews
When the opportunity for Percy, his mother, and Annabeth to go to Australia to visit Sally's family, they pack up and head to the country. While there, Emma (Percy's cousin) introduces Percy and Annabeth to her friends. But when a life-altering event happens and three of the Australians find out their actual heritage, lives are going to become more complicated, quickly. ON HIATUS
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: T - English - Fantasy/Adventure - Chapters: 7 - Words: 7,457 - Reviews: 71 - Favs: 99 - Follows: 119 - Updated: 9/14/2013 - Published: 1/20/2013
Love and Lies by writingfanatic123 reviews
When Anna moves to Forks, Washington to help her sick grandmother, her whole life changes. Should she be with a human, vampire or werewolf? She loves them all, but how will they react when she tells them she is a mermaid? Read this story on the love and lies in this unusual love story...
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Romance/Supernatural - Chapters: 10 - Words: 6,742 - Reviews: 51 - Favs: 37 - Follows: 61 - Updated: 9/13/2013 - Published: 10/5/2012
We Have A Lot to Talk About by Castgirl reviews
Edward left Bella. Bella goes to Australia. You can probably guess what happened to her. The Cullens move into town, and some secrets are revealed. This is just a quick one shot in EPOV.
Crossover - Twilight & H2O: Just Add Water - Rated: K - English - Romance/Supernatural - Chapters: 1 - Words: 2,634 - Reviews: 2 - Favs: 64 - Follows: 45 - Published: 9/1/2013 - Bella, Edward - Complete
TO LOVE Michael Jackson H2O Crossover by mermaidbyheart
What happens when the greatest entertainer of all times - MICHAEL JACKSON - meets a beautiful mermaid, but lies to her about his true identity? Will his bubble of loneliness finally burst? Will the mermaid reveal her own secret to him? Will they live happily ever after? Or will all those secrets destroy their relationship?
Crossover - Misc. Movies & H2O: Just Add Water - Rated: K - English - Romance/Hurt/Comfort - Chapters: 2 - Words: 3,148 - Favs: 2 - Follows: 2 - Updated: 9/1/2013 - Published: 8/17/2013 - Rikki C.
Mermaids vs Monsters by avamay227 reviews
Sequel to Mermaids, Monsters, and Mythology. Kronos is back and you'll never guess who's helping him. Story is better than the summary, I swear on the River Styx!
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: T - English - Adventure/Romance - Chapters: 9 - Words: 3,501 - Reviews: 15 - Favs: 24 - Follows: 22 - Updated: 8/27/2013 - Published: 7/10/2013 - Annabeth C., Percy J., Cleo S., Emma G. - Complete
Mermaids, Monsters, and Mythology by avamay227 reviews
Emma's back from her trip around the world with her family. She meets Bella and reunites with Cleo and Rikki. When a fury attacks the girls at Mako, Chiron sends out a rescue team immediately. Will the girls be able to hide their mermaidness (like my word) from the Campers? (Spoilers for TLH, SON, MOA are inside!) Takes place after the House of Hades & Giant War.
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: K+ - English - Fantasy/Adventure - Chapters: 12 - Words: 6,412 - Reviews: 58 - Favs: 52 - Follows: 39 - Updated: 8/27/2013 - Published: 4/30/2013 - Annabeth C., Percy J., Cleo S., Emma G. - Complete
Neverending Beginnings by emmaaa22 reviews
The Cullens have a new family member, whose family died after being attacked by vampires. As their attachment to this new family member grows, secrets will be discovered, revealed, and created. Follow Giselle, the wolves, and the Cullen family as they are introduced to a whole new realm of crazy. (Takes place during BD)
Crossover - Twilight & H2O: Just Add Water - Rated: T - English - Romance/Adventure - Chapters: 19 - Words: 41,970 - Reviews: 96 - Favs: 55 - Follows: 69 - Updated: 8/17/2013 - Published: 12/27/2012 - Bella, Edward, Seth, OC
Mermaid Maze by Twylaheart reviews
It has been years since Sarah was been in the Labyrinth. A familiar face will pull her and a few friends back.
Crossover - Labyrinth & H2O: Just Add Water - Rated: T - English - Romance/Humor - Chapters: 3 - Words: 1,279 - Reviews: 1 - Favs: 3 - Follows: 5 - Updated: 8/1/2013 - Published: 1/17/2012
A sellők végzete by april45 reviews
Ashley Hale nem átlagos lány. Van egy titka, amin négy legjobb barátnőjével osztozik. De mit tesznek, ha a SHIELD bizonyítékot szerez az eddig ismeretlen faj létezéséről, a Földet pedig háború fenyegeti? Elrejtőznek, vagy képesek lesznek feladni a titkukat a nagyobb jó érdekében? És hogyan viszonyul a világ a lányok képességeihez? Elfogadják vagy elárulják őket?
Crossover - H2O: Just Add Water & Avengers - Rated: T - Hungarian - Friendship/Supernatural - Chapters: 6 - Words: 25,031 - Reviews: 5 - Favs: 2 - Follows: 1 - Updated: 7/22/2013 - Published: 5/28/2013
The Mermaid Theorem by ClaptonJr reviews
Fearing media attention after a close call and Charlotte's return, the girls and their boyfriends leave for America. Cleo and Lewis flee to Pasadena to hide, but also so Lewis can find work at Caltech. There, he meets the nerd gang. See what happens next! Following Cleo and Lewis.
Crossover - Big Bang Theory & H2O: Just Add Water - Rated: T - English - Humor/Drama - Chapters: 5 - Words: 8,156 - Reviews: 15 - Favs: 13 - Follows: 16 - Updated: 7/17/2013 - Published: 3/28/2013
House of Mako by Honeydewmelon56 reviews
What happens when the whole Anubis house gang gets transferred to australia for the semester and meet three spunky girls named Emma, Rikki, and Cleo? And why are they so afraid of water? The sibunas are on the case to discover and uncover all the 'fishy' activity, but one of there own might dive a little too deep... Jara, Fabina, and general, all out sibuna mermaidness.
Crossover - H2O: Just Add Water & Het Huis Anubis/House of Anubis - Rated: K+ - English - Humor/Friendship - Chapters: 2 - Words: 2,363 - Reviews: 20 - Favs: 20 - Follows: 19 - Updated: 7/14/2013 - Published: 6/30/2013 - [Rikki C., Zane B.] [Jerome C., Mara J.]
Next Generation goes to school by Looseyourself reviews
best if you read first story- the gang is going to school but have never met eachother. Melody is the avatar, Alexa is a mermaid, And Drew is Mai (TNLOCK) How will these 3 teens handle the dramatic life called highschool. how do you have a normal life when your not normal?Read and Review POKEMON x TNLOCK x H2O just add water x AVATAR
Crossover - Pokémon & H2O: Just Add Water - Rated: T - English - Family/Drama - Chapters: 4 - Words: 8,844 - Reviews: 1 - Updated: 7/6/2013 - Published: 1/6/2013
Modern Day Love Story by Slybrat reviews
Wyatt keeps having dreams of his past life and a mystery girl keeps showing up. When his family and Michael and Sarah spend the summer in Australia Wyatt tries to find his girl, someone falls for Chris, Michael realizes his feelings for Prue all while the charmed ones are being hunted by Shax. Prue also meets someone that calls himself her big brother. Enjoy and Comment.
Crossover - Charmed & H2O: Just Add Water - Rated: T - English - Hurt/Comfort/Supernatural - Chapters: 7 - Words: 9,621 - Reviews: 5 - Favs: 11 - Follows: 9 - Updated: 7/2/2013 - Published: 2/9/2013 - Wyatt H., Emma G.
I'm married to a mermaid by rosierocks30 reviews
A Cleo/Trunks story.
Crossover - Dragon Ball Z & H2O: Just Add Water - Rated: M - English - Romance/Humor - Chapters: 9 - Words: 12,764 - Reviews: 24 - Favs: 4 - Follows: 10 - Updated: 6/24/2013 - Published: 4/29/2011 - Trunks, Cleo S.
mermaids lost by marvelgirl15
Basically The main idea is Cleo Emma and Rikki were on flight oceanic 815.
Crossover - Lost & H2O: Just Add Water - Rated: T - English - Drama - Chapters: 2 - Words: 937 - Favs: 2 - Follows: 3 - Updated: 6/23/2013 - Published: 6/19/2013 - Rikki C., Cleo S., Emma G.
No Ordinary Girls by mermaidmagicpower reviews
Four girls are stuck in a cave. When they go to leave something magical happens and their lives change forever. I know! Horrible summary, but my story is better. Hopefully!
Crossover - H2O: Just Add Water & Victorious - Rated: K+ - English - Drama/Friendship - Chapters: 12 - Words: 8,481 - Reviews: 56 - Favs: 17 - Follows: 21 - Updated: 6/20/2013 - Published: 7/22/2011
Gravity Falls: Just add water by Mysticalanimallover reviews
This is a story of three friends who get turned into merpeople.
Crossover - H2O: Just Add Water & Gravity Falls - Rated: T - English - Supernatural/Adventure - Chapters: 1 - Words: 279 - Reviews: 7 - Favs: 8 - Follows: 9 - Published: 6/12/2013 - Dipper P., Mabel P., Wendy
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