Rikki, Cleo, and Bella are having their last summer holidays, before year one of collage. When Emma arrives from her trip, Bella and Emma clash. Will there be broken friendships? Broken hearts? Or death?

Cleo is on her way to America to be with Lewis, yet when she's almost there she is kidnapped. She is taken from her boat in a lifeboat, and is on her way to be taken to Somalia, where she'll have no chance of ever getting back. Can she escape in time? Can she use her mermaid powers to her advantage, or as a weakness? Kidnapped and Out at Sea.

Cleo, Rikki, Zane, Lewis, and Phoebe are caught in the zombie apocalypse. With new enimies, new challenges, and the best version yet – comes a whole new adventure of H2O: Just Add Water: The End.

Cleo Setori died 6 months ago, and when Rikki and Emma discover that she is somehow alive again they attempt to escape with her. When the Police find Cleo, they take her into testing and observation. A group of scientist then kidnaps Cleo, wanting to study a mermaid, without the authorites knowing. Can Rikki and Emma break her out, or will they fall into the same situation as Cleo?

Things that you should never do in an H2O fanfiction.

Cleo is promoted to doing two shows at the Marine Park. One with Ronnie, and the other with the whale Tilikum. She discovers that Tilikum has killed trainers, and it is even on video for the whole world to see. She trains with the deadly whale putting aside the risks. Will Cleo lose her life, all because she was too naive to see the truth in Tilikum? (Based on a True Event)

Cleo is watching the famous movie, "The Hunger Games," When suddenly she is transported into a real life hunger games, along with a puzzled Rikki and Emma. They go for the center, and loot the boxes with items and tools. They set off in the forest for the unknown, wondering, "Who will live? And who will die?" A/N: This story is on hold