H2O: Just Add Water Crossovers
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Just add Blood by HORRORMANIAC19 reviews
Carrie & Sue begin their lives again when they reunite. & with the help of Cleo, Emma & Rikki (Sue's Cousin), they will also learn how to master their new powers as mermaids. & what kind of life will be lying ahead for them?
Crossover - H2O: Just Add Water & Carrie - Rated: T - English - Hurt/Comfort/Friendship - Chapters: 1 - Words: 1,113 - Reviews: 1 - Favs: 1 - Follows: 1 - Published: 8/30 - Rikki C., Cleo S., Emma G.
New Tail In Town by mermaidbyheart reviews
After Ondina's goodbye Erik does the only thing he knows how to do best, leave. He goes to Sydney where new adventures await him. There he meets a girl who not only resembles Ondina, but shares the mer secret as well. Then he suffers an accident that is about to change his whole life. For better or worse, only time would tell.
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K+ - English - Adventure/Romance - Chapters: 2 - Words: 2,274 - Reviews: 7 - Favs: 7 - Follows: 11 - Updated: 8/30 - Published: 6/18 - [Erik, Rikki C.]
Return to Majikku Island preview by ILoveEverything6 reviews
The title says it all!
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K - English - Romance/Drama - Chapters: 1 - Words: 215 - Reviews: 2 - Favs: 1 - Published: 8/29 - Complete
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: 11 - Words: 10,715 - Reviews: 31 - Favs: 12 - Follows: 22 - Updated: 8/26 - Published: 2/19
Mermaids In Haven by Dreamless-Mermaid
The girls vacation in New York for Bella and Will's wedding. On their first night out Rikki gets a little drunk, and decides to take a night swim. She ends up unconscious in Haven, rescued by Duke, and the two of them investigate a strange Trouble with the help of Audrey and Nathan. Come to find out, Rikki is not the only Mako Island mermaid in Haven.
Crossover - H2O: Just Add Water & Haven - Rated: T - English - Humor/Drama - Chapters: 1 - Words: 3,288 - Published: 8/25 - Rikki C., Duke C., OC
A new tail by fantasy.lover28 reviews
When a fifth mermaid appears on the moonpool, talking about a pod, how will our mermaids react? (I promise the stoy is much better than the summary, please don't skip and read)
Crossover - H2O: Just Add Water & Mako Mermaids - Rated: K+ - English - Friendship/Drama - Chapters: 4 - Words: 1,955 - Reviews: 2 - Favs: 2 - Follows: 2 - Updated: 8/20 - Published: 8/9 - Rikki C., Cleo S., Emma G., Bella H.
Sabrina the Teenage Witch: Meets The H20 mermaids by kyubi2020
Set after Graduation and soul mates. 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, with Harvey starting his job at the office, but life is about to change as the arrival of Cleo, Rikki and Bella soon beings events to an head, and which could affect both the mortal, and magic realms.
Crossover - Sabrina the Teenage Witch & H2O: Just Add Water - Rated: T - English - Adventure/Romance - Chapters: 1 - Words: 6,175 - Published: 8/20 - Complete
Tell Me Your Secrets by forever.your.love reviews
Cassidy doesn't know what to expect about her adoptive parents. In turn, they don't know what to do about her. There's something off about the Jacksons' and Cass is going to find out. Even if it risks spilling the fact that she's a mermaid...
Crossover - Percy Jackson and the Olympians & H2O: Just Add Water - Rated: T - English - Adventure - Chapters: 8 - Words: 9,296 - Reviews: 160 - Favs: 78 - Follows: 122 - Updated: 8/9 - Published: 1/23/2011
The Secret Life of Natasha Romanoff by Onetimewritter reviews
Natasha Romanoff, AKA Black Widow, is an Avenger. She can fight off a terrible school, aliens, and out of control robots, but can she handle the discovery of her biggest secret? She will bare the weight of this secret forever, but will it be easier once she meets another girl like her? (I do not own The Avengers or H2O: Just Add Water)
Crossover - H2O: Just Add Water & Avengers - Rated: T - English - Fantasy/Hurt/Comfort - Chapters: 7 - Words: 8,655 - Reviews: 5 - Favs: 2 - Follows: 7 - Updated: 8/7 - Published: 6/26 - [Black Widow/Natasha R., Hulk/Bruce B.] OC - Complete
The Meredead by SocratesJackson reviews
A crossover set in the H2O: Just Add Water universe, with the addition of characters from The Vampire Diaries. Bonnie and Caroline take Elena away on a vacation, to get away from all the supernatural happens back in Mystic Falls. But what they discover on The Gold Coast of Australia changes their lives and the lives of those they meet...
Crossover - H2O: Just Add Water & Vampire Diaries - Rated: T - English - Supernatural/Adventure - Chapters: 16 - Words: 27,672 - Reviews: 5 - Favs: 6 - Follows: 7 - Updated: 8/5 - Published: 6/23 - Cleo S., Elena G., Bonnie B., Caroline F. - Complete
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: 3 - Words: 787 - Reviews: 4 - Favs: 3 - Follows: 4 - Updated: 8/1 - Published: 11/29/2014 - Gaang, Rikki C., Cleo S., Emma G.
iHave a Twin by H2OGirl101 reviews
Set before season 3 of H2o (no Bella) and in this story, the whole Melanie twin thing was a joke played on Freddie by Sam. Rikki and Sam find out that they are in fact twins separated by their parents. Now Rikki's dad has sent her to live in America with her mom and Sam. How will they react to each other? How will Carly react to Rikki? What happens when Denman gets involved?
Crossover - iCarly & H2O: Just Add Water - Rated: K - English - Chapters: 14 - Words: 41,749 - Reviews: 114 - Favs: 46 - Follows: 78 - Updated: 7/31 - Published: 10/14/2012 - Sam P., Rikki C. - Complete
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: 9 - Words: 7,966 - Reviews: 24 - Favs: 8 - Follows: 16 - Updated: 7/31 - Published: 5/23/2013
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: 3 - Words: 8,502 - Reviews: 8 - Favs: 3 - Follows: 6 - Updated: 7/29 - Published: 4/6
Drake2O by The Chortling Mermaid reviews
Once Drake realizes his music career is failing, his parents decide to send him to Australia, where one of Walter's connections has guaranteed him a "music job." However, he meets some very special Australian teens. Teens that are clearly hiding a secret. Drake is determined to find out what they're hiding. He'll make friends, enemies, and maybe find love. Written by Maddie and FOF
Crossover - Drake & Josh & H2O: Just Add Water - Rated: T - English - Adventure/Humor - Chapters: 4 - Words: 5,840 - Reviews: 2 - Updated: 7/27 - Published: 7/9
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: 8 - Words: 3,354 - Reviews: 21 - Favs: 13 - Follows: 15 - Updated: 7/25 - Published: 1/9
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: 6 - Words: 4,664 - Reviews: 7 - Favs: 6 - Follows: 9 - Updated: 7/20 - Published: 10/16/2014 - [Cleo S., Jerome C.] Charlotte W., Nina M.
h20: just add secrets by cabool
what if Cleo,Emma,and Rikki go and find Hayley and Rebekah and tall them they are their doppelgangers then make them mermaids. what will the gang going to say. (parings) {Klaus and Caroline} {hayley and Elijah} {Damon and Elena} {Stephen and Rebekah} {Bonnie and Kol}
Crossover - H2O: Just Add Water & Vampire Diaries - Rated: T - English - Supernatural/Romance - Chapters: 2 - Words: 164 - Favs: 2 - Follows: 3 - Updated: 7/17 - Published: 6/7 - Cleo S., Emma G., Rebekah, Hayley
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: 14 - Words: 52,608 - Reviews: 33 - Favs: 22 - Follows: 24 - Updated: 7/12 - Published: 11/16/2014 - Conner M., Ethan J.
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: 20 - Words: 17,224 - Reviews: 37 - Favs: 10 - Follows: 22 - Updated: 7/8 - Published: 10/29/2012 - Willow R., Charlotte W.
Ocean and Skies by Darkwing-Kate reviews
Will Benjamin and Lincoln Campbell are different, yet the same. Told mostly in drabbles. Contains spoilers for season two of Agents of S.H.I.E.L.D.
Crossover - H2O: Just Add Water & Agents of S.H.I.E.L.D. - Rated: T - English - Angst/Hurt/Comfort - Chapters: 7 - Words: 6,420 - Reviews: 1 - Favs: 5 - Follows: 2 - Published: 7/6 - Will B., Bella H., Lincoln C., Skye/Daisy - Complete
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: 6 - Words: 8,237 - Reviews: 25 - Favs: 21 - Follows: 47 - Updated: 7/1 - Published: 5/13
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: 3 - Words: 2,016 - Reviews: 10 - Favs: 5 - Follows: 13 - Updated: 6/23 - Published: 3/6
Welcome to Mystic Falls by Enchanted99 reviews
Due to her parents business trip Emma is force to stay with her cousins Elena and Jeremy in Mystic Falls. You would think that a mermaid would not be shock to that find vampires, witches, and werewolves also exists. *edited version, originally publish 2013*
Crossover - H2O: Just Add Water & Vampire Diaries - Rated: T - English - Chapters: 4 - Words: 4,876 - Reviews: 8 - Favs: 9 - Follows: 12 - Updated: 6/16 - Published: 6/2
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: 5 - Words: 2,146 - Reviews: 9 - Favs: 3 - Follows: 4 - Updated: 6/10 - Published: 1/23 - Emma G., Charlotte W., Louise C., Sawyer N.
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