Just In
Harry Potter and H2O: Just Add Water Crossovers
1 The Siren at Hogwarts » by The Dark Waltz Harry Potter after two centuries of being MoD is tired of forever and decides to enact an old spell that will trade lives with another from a different dimension. Rikki Chadwick takes the opportunity of her dreams to a life where she could be a mermaid forever.
T, English, Adventure & Humor, chapters: 10, words: 12k+, favs: 21, follows: 20, updated: 5/11 published: 4/29, Rikki C., Harry P.
6 Morgan Kazuo Potter » by Jungkookie16 Normalement quand vous constatez que vos parents vous laisse de côté pour votre frère, c'est parce qu'il a des problèmes et il a besoin de soutien. Sauf que c'est tout le contraire avec moi. Avec mes parents qui me laisse complètement livrer à moi-même à un très jeune âge. C'est mon histoire, je m'appelle Morgan Kazuo Potter. MPREG, Power!oc,Vit avec les grandparents, Merman
T, French, Adventure & Romance, chapters: 4, words: 3k+, favs: 19, follows: 24, updated: 4/2 published: 7/7/2019
45 Scaly Tailed Mentor » by ArchMagister379 After an incident with a glowing jewel pendant, Harry finds himself in the H20 universe with some new powers. A year later, the moon has done it magic and left three new mermaids in the clear ocean of Australia. After Harry discovers the three new mermaids, he becomes a mentor to the three girls. With a powerful wizard/merman as their mentor, what could possibly go wrong? OOC Harry
T, English, chapters: 3, words: 4k+, favs: 260, follows: 308, updated: 2/26 published: 1/11/2015
Viktor's Mermaid » by Haley Hampton 17 at 7 year old Hermione Granger became a mermaid
K, English, Romance & Supernatural, chapters: 2, words: 746, favs: 10, follows: 19, updated: 2/6 published: 2/5, Hermione G., Viktor K.
128 Moon Blessed » by AbyssUnknown Twelve-year-old Harry Potter is saved by Magic and gifted with the ability to be a merman. With his world turned upside down with this new ability and its corresponding powers, Harry's survival instincts kick in as he realises he can no longer continue fitting in if he were to guard his new secret from those willing to exploit him. !IndependentHarry !GreyHarry !Non-canon-compliant
T, English, Friendship & Fantasy, chapters: 18, words: 118k+, favs: 360, follows: 482, updated: 12/21/2020 published: 8/18/2019, Harry P., Sirius B.
10 merman of H2o » by foxwolf101 harry found out he have more family out their that want to take him harry is part merman when he turn 16 was james a merman or just in his family blood for decades find out when his cousin Cleo found out about...
T, English, Adventure & Supernatural, chapters: 3, words: 1k+, favs: 40, follows: 64, updated: 10/10/2016 published: 4/14/2016
147 Hermione Meets H2O » by Lynelle147 Set three months after Voldemort is defeated, Hermione goes on a special mission to find a new species in Australia. You'd be surprised what she finds...
T, English, Friendship & Fantasy, chapters: 20, words: 36k+, favs: 114, follows: 161, updated: 4/18/2016 published: 6/11/2012, Hermione G., Cleo S.
138 Accidentally at Hogwarts » by ShadowKissedGallagherGirlLexia Emma's back, and the girls all get new powers. When Cleo, Emma and Bella get moonstruck, Rikki tries to rescue them with her new powers, but something goes wrong. They end up in a Moon Pool in a certain Forbidden Forest, which leads to a certain Black Lake on Hogwarts school grounds. What will happen when the HP gang are repeating their seventh year as eighth years? Minor Language
T, English, chapters: 13, words: 59k+, favs: 109, follows: 136, updated: 11/26/2014 published: 1/11/2013
9 Hermione's Secret » by WritersElemental Starts Pre-Hogwarts. Goes on through Hermione's Hogwarts education. OOC. Harmony. RW/AD/MW Bashing. Manipulative!Dumbledore. Harmony!SoulBond. Full Summary Inside!
K+, English, Adventure & Fantasy, chapters: 2, words: 2k+, favs: 40, follows: 51, updated: 11/22/2014 published: 7/28/2014, Hermione G.
5 Of Mermaids and Wizards » by ScarlettAnderson99 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.
T, English, Adventure & Friendship, chapters: 4, words: 4k+, favs: 6, follows: 9, updated: 10/11/2014 published: 2/1/2014
3 Scylla Vanora The most wanted mermaid! » by Owllover131 Scylla Vanora is a mermaid and something else. She is different then the others. But what makes her so different? Scylla Vanora goes to Hogwarts for... safety reasons. What can this poor mermaid do in a school when the man who is after her, who knows what she is, wants her back? Will she end the war or will she be the one to start it?
T, English, Friendship, chapters: 3, words: 1k+, favs: 4, follows: 7, updated: 10/6/2014 published: 1/18/2014
12 Harry potter and the secret of the golden tails » by SimsFanatic Draco's little sister is a first year(set in the second film) and when she gets denention and has to go into the forbidden forest with harry, hermione and Draco and Ron and Ginny she gets lost and stumbles into a beautiful pool with the moon directly over it and falls in. She's a mermaid. During the sorting 3 girls suddenly appear out of nowhere
K, English, chapters: 5, words: 3k+, favs: 9, follows: 10, updated: 8/1/2014 published: 4/30/2014
8 Voldemort and Mako by H20Rikki Pretend Voldemort didn't die. He travels to Gold Coast, Australia for a holiday. MUST READ! And please review :)
K+, English, Supernatural & Adventure, words: 329, favs: 6, follows: 6, 4/29/2013, Voldemort
3 The fishy tale by LunasBffLindsey Cleo Bella and Rikki meet Harry Ron and Hermione. How does it work? Will feeling start for Weasley. Find out by reading
K, English, words: 1k+, favs: 3, follows: 5, 4/27/2012, Ron W., Cleo S.
37 truth about the mermaids family » by blueroses12 the gang needs to solve a mystery, but how are they going to get rid of the mass amounts of people that just apeared in Emma's living room.
T, English, Family, chapters: 3, words: 4k+, favs: 42, follows: 38, 4/18/2009, Harry P., Emma G.
Plus Filters
Without Filters

Twitter . Help . Sign Up . Cookies . Privacy . Terms of Service