While concentrating on her goal of becoming popular, including hiding her eccentric family from the cool crowd, thirteen-year-old Molly discovers that she and her older sisters are half human, half mermaid.

Explores the history of mermaids from Atlantis and beyond while recounting tales about human encounters with merfolk and explaining how mermaid mythologies can teach readers about harnessing the powers of the unconscious mind.

While visiting his uncle, Dr. Deep, on a tiny Caribbean island, Billy goes exploring underwater, ignoring warnings to stay away from the coral reef, and is stalked by a half-human, half-fish predator.

As a mermaid versus human war looms on the horizon, Luce falls in love with her sworn enemy Dorian and assumes her rightful role as queen of the mermaids.

Siren Phillips has lived her life thinking she's an ordinary girl, in an ordinary town. On the eve of her twelfth birthday, however, she learns that she is far from ordinary. Destined to turn into a mermaid at the age of twelve, Siren must struggle with her new reality, saying goodbye to her mother and friends while she transitions into the water. To make matters worse, a group of hunters is after her, trying to catch her.

As Serafina uncovers more clues about the talismans, Neela ventures into a sea dragon's nest, and Ling learns the identity of their foe.

The small town of Bellamy Bay has its share of skeletons in its closet, but it isn't used to bodies turning up in the local history museum. After all, this coastal North Carolina town is much like any other...except, of course, for the mermaids. Helping to run the family business, an herbal apothecary while keeping her supernatural secret hidden is no easy feat for water witch Aleksandra Daniels. But somehow she's still found time to help her friend...

"Ariel is a curious mermaid who has always wanted to explore the human world! After saving a prince named Eric from a dangerous shipwreck, Ariel makes a deal with the Sea Witch, Ursula, so she can meet him and learn more about what life is like beyond her ocean home. But Ursula is full of tricks, and it will take all of Ariel's courage to save the human world and the ocean from the Sea Witch's devious plans"--

On leave in a shore side town, Johnny becomes interested in a young dark haired woman. They meet and he learns that she plays a mermaid in the local carnival. After strange occurrences, Johnny begins to believe that she may actually be a real mermaid that habitually kills during the cycle of the full moon.