Uncovering an ancient evil, Serafina, a mermaid of the Mediterranean Sea, searches for five other mermaid heroines who are scattered across the six seas, to save their hidden world.

On Mermaid Day, the mer-queen throws a big bash and sea creatures of all kinds attend, including a shy shark who joins in the dancing.

"Astrid struggles with a shameful secret, Ling discovers courage in a prison camp, and Serafina lines up allies to help fight the final battle for her underwater realm"--

When Pinkalicious and Peter go to the hidden cove to meet their friend Aqua, a mini-mermaid, they see pirates instead.

"A picture book about a mermaid named Mabel, who unlike the rest of her family does not have a moustache, and the seven-armed octopus who becomes her friend and helps her see that she is just right the way she is"--

Blood calls to blood; charm calls to charm. It is the way of the world. Come close and tell us your dreams. Sanna is a mermaid -- but she is only half seavish. The night of her birth, a sea-witch cast a spell that made Sanna's people, including her landish mother, forget how and where she was born. Now Sanna is sixteen and an outsider in the seavish matriarchy, and she is determined to find her mother and learn who she is. She apprentices herself...

"Ella's family has a BIG secret - her mom is a fairy! Ella's dream is to become a fairy like her mom someday...but now she wishes for a spell to turn into a mermaid too! In this enchanting book, Ella and her mom decorate the kitchen with magic coloring pencils, catch a robber on Ella's school trip - and swim with real mermaids!"--Amazon.com

While riding the subway home from the pool with his abuela one day, Julián notices three women spectacularly dressed up. Their hair billows in brilliant hues, their dresses end in fishtails, and their joy fills the train car. When Julián gets home, daydreaming of the magic he's seen, all he can think about is dressing up just like the ladies in his own fabulous mermaid costume: a butter-yellow curtain for his tail, the fronds of a potted fern...

Neptune, King of the ocean, sends half-mermaids Emily and Aaron to the land of the midnight sun to investigate the source of the dangerous storms brewing in the ocean.

In a society determined to keep her under lock and key, Tavia must hide her siren powers. Meanwhile, Effie is fighting her own family struggles, pitted against literal demons from her past. Together, these best friends must navigate through the perils of high school's junior year. But, everything changes in the aftermath of a siren murder trial that rocks the nation, and Tavia accidentally lets out her magical voice at the worst possible moment. Soon,...