When Neptune tells Emily and her merman father and human mother to return to Brightport to try to make merpeople and humans work more closely together, Emily faces problems with old enemies, her new, half-merfolk friend Aaron, and a mystery related to a group of legendary lost sirens.

When Purrmaid friends Shelly, Angel, and Coral team up with the Catfish Club to audition for the annual Founder's Day Showcase, they learn that singing well requires more than just practice.

When she incurs Neptune's wrath by finding a diamond ring buried under rocks in the ocean, Emily is put under a curse that will force her to choose to be either a mermaid or a human and split up her parents forever.

Barbie takes the starring role in a story of mermaid adventure.

Each of King Neptunes 50 mermaid daughters boasts a special talent, except for little Minnow, who seems to be good only at asking questions. When she finds a strange object, Minnow follows her questions to a wondrous place and finds answers, including the answer to the most important question of all: Who am I? A gorgeously illustrated story about finding one's purpose.

Mermaid sisters Anaya, Shante, and Kianna discover which of the three of them has what it takes to become a legend of the sea.

When young Pearl, a mermaid, becomes caretaker of a single grain of sand, she discovers that performing even the smallest task well can transform the world.

As they search for their missing father near their Cornwall home, Sapphy and her brother Conor learn about their family's connection to the domains of air and of water.

Itty must figure out why the mermaids of Lollyland have stopped singing.

"This interactive adventure book places the reader in the position of an outlaw mermaid who must free family members imprisoned by the evil ruler of Atlantis by finding a lost relic."