Moving to New York wasn't exactly the worst thing to happen to mermaid Jacqueline Thompson. She was prepared to be content with her new life, that was until some twist of fate exposed her secret to some of the most dangerous people in the world, the Avengers. Now she has to deal with a new school, a new city, and a new life. (ABANDONED AND CROSSPOSTED TO AO3)

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)

A mermaid, Alex Stark, the niece of Tony Stark, is living a normal life in NYC, well a normal life for a girl with mermaid powers. What happens when she gets mixed up in her Uncle's avenger business? So what's a girl to do when SHIELD is after the secrets of your tail and you dosn't want to give them up? Madness, powers, a few laughs maybe, little bit of language. CROSSOVER EPIC!

When Cameron Hayes, or Cammie, moves from sunny Australia to New York, a whole lot can happen. What happens when she is attacked on her first day of school and attracts SHIELD's attention? How is she gonna get out of this mess? Will she keep the secret, or will it be exposed for the government? Rated for Language.

Ashley Hale nem átlagos lány. Van egy titka, amin négy legjobb barátnőjével osztozik. De mit tesznek, ha a SHIELD bizonyítékot szerez az eddig ismeretlen faj létezéséről, a Földet pedig háború fenyegeti? Elrejtőznek, vagy képesek lesznek feladni a titkukat a nagyobb jó érdekében? És hogyan viszonyul a világ a lányok képességeihez? Elfogadják vagy elárulják őket?