Percy Jackson and the Olympians and H2O: Just Add Water Crossovers   Feed
Going Under » by Sketchergal reviews
This is Mira's last chance, otherwise she'll be kicked out onto the streets. But how can you not be a danger magnet when you're a mermaid with a scent stronger than a daughter of Zeus's and monsters are popping up at the worst possible times?
Rated: T - English - Fantasy - Chapters: 4 - Words: 8,195 - Reviews: 16 - Favs: 14 - Follows: 21 - Updated: 5-10-13 - Published: 5-8-12 - Leo V.
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 The Lost Hero, Son of Neptune, and Mark of Athena are inside!)
Rated: K+ - English - Fantasy/Adventure - Chapters: 1 - Words: 347 - Reviews: 3 - Favs: 2 - Follows: 7 - Published: 4-30-13 - Annabeth C. Percy J. Cleo S. Emma G.
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...
Rated: T - English - Adventure - Chapters: 7 - Words: 7,265 - Reviews: 116 - Favs: 56 - Follows: 77 - Updated: 4-29-13 - Published: 1-23-11
Immortals at Goode » by sciencelover reviews
*Sequel to Secrets Revealed* The Jackson family and Emma, Cleo, and Rikki have finally made their way to the United States after two years. Now the Jackson twins and our favorite mermaids have to finish their senior year at Goode as immortals. How will they deal with they change of being in a new country and dealing with typical high school drama?
Rated: T - English - Friendship/Family - Chapters: 4 - Words: 6,989 - Reviews: 10 - Favs: 9 - Follows: 10 - Updated: 3-29-13 - Published: 1-21-13
H2O Meets camp HalfBlood » by PercyJfan100 reviews
While swimming, Cleo, Rikki, Emma, and Bella are chased by a sea monster, all the way to America' to Camp Half-Blood. Now, what do you get when you take a camp full of demigods, four mermaids, and a bunch of water everywhere you look. Chaos.
Rated: K - English - Fantasy/Friendship - Chapters: 9 - Words: 11,727 - Reviews: 142 - Favs: 93 - Follows: 112 - Updated: 3-20-13 - Published: 10-6-11
Percy and the Mermaids » by Castaway43 reviews
The four mermaids meet up with Percy and Annabeth in New York, where they unwillingly reveal their powers.They go to Camp Half-blood, where they make both friends and foe. But can they hide their tails, especially in a place where everyone thinks Cleo is a child of Poseidon.
Rated: K+ - English - Chapters: 8 - Words: 5,734 - Reviews: 23 - Favs: 23 - Follows: 35 - Updated: 3-12-13 - Published: 12-31-12 - Percy J. Cleo S.
Just Add Percy Jackson » by SmartyMcSmartle reviews
Percy is visiting his cousin Emma in Australia. Emma and Percy are close, but they never really see each other. What will happen? READ OR I WILL KILL YOU! (jk) READ IT I'M BAD AT SUMMARIES! :)
Rated: T - English - Chapters: 6 - Words: 6,583 - Reviews: 25 - Favs: 23 - Follows: 32 - Updated: 1-27-13 - Published: 1-20-13
Mermaid Demigod by hrknmom reviews
I cant do a summary yet because i need OCs!
Rated: T - English - Romance/Adventure - Chapters: 1 - Words: 64 - Reviews: 21 - Favs: 6 - Follows: 12 - Published: 1-16-13 - Rikki C.
Being a Mermaid isn't the Weirdest thing now » by HappyFace1999 reviews
During a full moon, Rikki, Cleo, Bella and Emma get stuck in there 'moon-trans' and go into the water. While swimming to Mako, they're are chased by a sea snake- all the way to Camp Half-Blood's beach. How can they explain appearing out of nowhere to everyone? And is being mermaids the oddest about them? And what taken mermaid has a crush on a half-blood from the Hermes cabin?
Rated: T - English - Drama/Friendship - Chapters: 7 - Words: 3,641 - Reviews: 38 - Favs: 22 - Follows: 42 - Updated: 12-24-12 - Published: 9-1-12 - Percy J.
Secrets Revealed » by sciencelover reviews
Both Percy's family and Cleo, Emma, and Rikki have kept secrets from each other. Until now. What will happen when they reveal their secret and something repeats themself from Percy's and Annabeth's past. What will happen? Read to find out. Now COMPLETE! *Please vote on my poll if you want there to be a sequel to this story*
Rated: T - English - Family/Adventure - Chapters: 12 - Words: 9,903 - Reviews: 51 - Favs: 34 - Follows: 25 - Updated: 11-30-12 - Published: 9-23-11 - Complete
The Aqua Chronicles4: We Go To Australia by TheGuyWhoReadsTooMuch reviews
This story is about how Cleo, Emma, Bella, and Ricky help out with up coming war. But the Part of the War that is in the Ocean
Rated: T - English - Adventure/Drama - Chapters: 1 - Words: 7 - Reviews: 3 - Favs: 1 - Follows: 1 - Published: 10-24-12 - Percy J. Cleo S.
i'm a what? » by I am Alexa daughter of Hades reviews
Bella, Rikki, Emma, and Cleo find Annabeth, who takes them to Camp Half-Blood. will Camp find out their secret? if they do, will they keep it?
Rated: K+ - English - Chapters: 3 - Words: 635 - Reviews: 18 - Favs: 12 - Follows: 26 - Updated: 9-17-12 - Published: 7-19-12 - Annabeth C. Bella H.
Metamorphosis » by FinalDestinationLover45 reviews
Percy, Annabeth, Thalia, and Piper are on vacation in Australia. But, what'll happen when the girls come back with more than they bargain for? Story better than the summary, trust me.
Rated: K - English - Fantasy/Humor - Chapters: 3 - Words: 2,783 - Reviews: 15 - Favs: 14 - Follows: 26 - Published: 8-20-12 - Percy J. Cleo S.
My Weird Crossover by Iamsumbody reviews
A crossover of Percy Jackson, H2O, and Twilight.
Rated: K+ - English - Adventure/Supernatural - Chapters: 1 - Words: 256 - Reviews: 9 - Favs: 7 - Follows: 10 - Published: 3-16-12 - Percy J.
Mermaid God » by White-Flight reviews
Crossover of H2O, Percy Jackson and Vampire Diares. When Elena's sister and friends come to vist geus who shows up: Percy Jackson. There is an up rising threat that will mean working together. My first Fanfic.
Rated: K - English - Adventure/Romance - Chapters: 6 - Words: 3,544 - Reviews: 2 - Favs: 7 - Follows: 5 - Updated: 12-24-11 - Published: 12-4-11 - Grover Emma G.
The Sea and the Moon Continued » by h2ogirl805 reviews
The Sea and the Moon story by Goddess Of Revenge continued
Rated: K - English - Chapters: 4 - Words: 1,937 - Reviews: 12 - Favs: 6 - Follows: 12 - Updated: 12-5-11 - Published: 12-4-11
The Truth Revealed » by Marina Dawn reviews
What if Rikki's parents weren't her real parents? What if two certain demigods parented her? And if her father is the son of the Sea God, maybe Rikki was destined to become a mermaid on Mako Island. Takes place in early first season of H2O.
Rated: K - English - Family/Fantasy - Chapters: 3 - Words: 5,994 - Reviews: 51 - Favs: 59 - Follows: 71 - Updated: 6-11-10 - Published: 6-8-10 - Percy J. Rikki C.
Think or Swim by Ismeme Daughter of Athena reviews
What happens when the mermaid trio finds Poseidon's underwater palace? Will they stay in Australia or move to Poseidon's awesome underwater kingdom? Will they even settle peacefully? Read to find out! No intended reference to the company, thinkorswim.
Rated: K+ - English - Friendship - Chapters: 1 - Words: 1,075 - Reviews: 11 - Favs: 17 - Follows: 8 - Published: 4-28-10 - Complete