When her mermaid mother is missing, Jade, who is afraid of the ocean, must come up with a plan to get her back on dry land.

Once again Abby and her brother Jonah go through the magic mirror in their basement, and this time they find themselves interfering in the Little Mermaid story--and needing to set things right and make sure everyone has a happy ending.

While preparing for a unit on storytelling, the mermaids of Trident Academy learn of a legendary pirate treasure in their own city and Pearl decides to find it, despite a warning that it is guarded by a ghost.

When her family moves from Chicago to an island in South Carolina, Lindy is sure she will be unhappy until she makes a surprising discovery in the backyard of their beach house.

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.

A new mergirl shows up at Mount Olympus Academy-- and Poseidon just might be her perfect match in this seventeenth Goddess Girls adventure. Amphitrite is a mergirl with a big crush on Poseidon but will his quirks make her fall out of like?

After finally convincing her mother that she should take swimming lessons, twelve-year-old Emily discovers a terrible and wonderful secret about herself that opens up a whole new world.

One life. One choice. One sacrifice. To save those closest to her, Simi traded away everything: her freedom, her family, and the boy she loves. Now she is sworn to serve a new god, watching over the Land of the Dead at the bottom of the ocean. But when signs of demons begin to appear, it’s clear there are deeper consequences of Simi’s trade. These demons spell the world’s ruin . . . and because of Simi, they now have a way into the human realm....

A field trip to a mysterious island quickly turns into an adventure when Emily Windsnap and Aaron discover a secret lookout point from which they spot a ghostly ship that no one else seems to be able to see. The ship appears and disappears only at certain times of day growing fainter each time. Searching for answers only leads to more questions until Emily and her friends confront the island s keeper, uncovering the incredible story of a ship caught...

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,...