Twelve-year-old Kela is still mourning her mother when she finds a mermaid's comb while she and her friend are looking for sea glass on her Caribbean island; such combs have magic in them, and touching it opens a connection to the mermaid Ophidia who can grant her wish, to bring her mother back to life--but all wishes have consequences, and magic demands a price which may prove to be more painful than the loss of her mother.

"When her mother finally agrees to let her take swimming lessons, 12-year-old Emily Windsnap makes a startling discovery about her own identity, the mysterious father she's never met, and the thrilling possibilities and dangers shimmering deep below the surface"--

On the night of the blue moon when mermaids are said to gather on a sandbar in the Gulf of Mexico, ten-year-old Keeper sets out in a small boat, with her dog BD and a seagull named Captain, determined to find her mother, a mermaid, as Keeper has always believed, who left long ago to return to the sea.

When her mother, who sells Beauty & the Bee cosmetics and drives a Beemobile, surprises soon-to-be a sixth-grader Anthoni with a trip to the Showboat Resort, Anthoni plans to finally make a "True Blue Friend."

"A mermaid and her otter friend go on a journey to help a lost beluga whale return to the Arctic."--

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

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.

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,...

Aboard the pirate ship Dove, Flora the girl takes on the identity of Florian the man to earn the respect and protection of the crew. The brutal life of a pirate is about survival: don't trust, don't stick out, don't feel. When the pirates prepare to sell their unsuspecting passengers into slavery, Flora is drawn to the Lady Evelyn Hasegawa, who is en route to a dreaded arranged marriage with her own casket in tow. The pair set into motion a wild escape...

Oona and her best friend Otto love to search for treasure...and often find trouble instead. Messy trouble. Tricky trouble. Even shark-related trouble. That's never stopped them before, though! After all, no proper treasure hunt is without some adventure. But when the grandest treasure yet is stuck in a deep, dark rift, Oona's not sure if she can dive right in. What might be waiting for her in those unknown waters?