Justaddwater Stories

(My Hero Academia and H20: Just Add Water Crossover) Arisu Yagi and her friends find themselves on Mako Island on the night of a full moon. Something magical happens to...

Keeping secrets is hard, hiding the fact that you're a mermaid is harder. When Natalie Sertori, her twin sister, and their two friends get stranded on Mako Island, their...

When Percy Jackson goes to Australia for a vacation, he stumbles upon a certain pool in a volcano. Will he find it's secrets and the Mermaids in it? The four mermaids...

What happens when you go to MAKO island on a full moon? You turn into a mermaid, of course! The girls are mermaids and they go to a boarding school. What happens when th...

COMPLETED "Percy rounded the corner of the boat and saw the last thing he expected to see: a mermaid." After the Giant War ended, Percy Jackson, Annabeth Chase...

Okay, so this is a self insert one-shot, friendship...thing, whoop. Additionally, I know you guys have biases for the girls so I created four different one shots where y...

I was reading these kind of stories and found they were too short and hadn't been finished or were just not finished so I have decided to try and make my own H2O and PJO...

As you "H2O: Just Add Water" Fans know, Rikki, Cleo, and Emma were the last generation of three that become mermaids at Mako Island. Well now there just so hap...

𝖩𝖴𝖲𝖳 𝖠𝖣𝖣 𝖶𝖠𝖳𝖤𝖱 𝐒𝐏𝐈𝐃𝐄𝐑-𝐌𝐀𝐍 𝐇𝐎𝐌𝐄𝐂𝐎𝐌𝐈𝐍𝐆 ( 🧜‍♀️🌊🧫 ) 美人鱼 🌱🐚 𝘪'𝘮 𝘯𝘰 𝘰𝘳𝘥𝘪𝘯𝘢𝘳𝘺...

The second Giant War is over, but at a high price. All her friends were killed and she returns home to find that her mortal family is moving to Australia. Just when she...

Madeleine Hawkins is a sweet, young girl with an unfortunate disease known as Aquagenic Urticaria, or more commonly known as being allergic to water. All water, no matte...

A new love is up for Rikki, and Emma comes back from her vacation. Bella and Emma meet, but they...well...don't exactly see eye to eye. Life after high school, they appl...

Rikki and Zane's, Bella and Wills, Cleo and Lewis's, and Emma's and Ash's kids story hope you enjoy

Kelly and her friends go on an adventure that would end up changing their lives

This is the sequel of Just add Water: A Tail of True Love, where Emma, Rikki and Bella turn into Mermaids and Cleo offers to help them. Will all of them communicate with...

This is my oc's story as well as a H20: just add water and MCU crossover. summary is the "1st" chapter. Upload dates is uncertain at this time but I really hop...

I do not own the Percy Jackson and the Olympians or H2O Just Add Water I'm not uncle Rick or Jonathan M. Shiff

Information on the mermaids in Aussie teen series, H2O: Just Add Water **All information is from the H2O Universe Fandom Wiki**

Mermaids Real Or Just FairyTales? My name is Lana Adlaine and two months ago I would've said Fairytales but now I choose neither. Don't let the little mermaid fool you b...