Experiencing occasional visions of the future, mermaid Kiki Coral receives a psychic warning that her classmate, Rocky Ridge, will have a dangerous encounter with a giant leatherback turtle, a premonition she fears nobody will believe.

Billy and his sister, Sheena, are visiting a tiny Caribbean island. It's the perfect place for an underwater adventure. There's only one rule to remember: Stay away from the coral reefs. But Billy can't resist the beauty of the reefs -- and he quickly discovers that he's not alone. Something that's half-human, half-fish is lurking deep below.

Kiki wants to start a book club, but Pearl tries to steal the spotlight with a rival fashion club in this sparkling Mermaid Tales adventure.

Once there was a mermaid called Amelia who could never be content in the sea, a mermaid who longed to know all the world and all its wonders, and so she came to live on land. Once there was a man called P. T. Barnum, a man who longed to make his fortune by selling the wondrous and miraculous, and there is nothing more miraculous than a real mermaid. Amelia agrees to play the mermaid for Barnum and walk among men in their world, believing she can leave...

"Yetu holds the memories for her people -- water-dwelling descendants of pregnant African slave women thrown overboard by slave owners -- who live idyllic lives in the deep. Their past, too traumatic to be remembered regularly, is forgotten by everyone, save one -- the historian. This demanding role has been bestowed on Yetu. Yetu remembers for everyone, and the memories, painful and wonderful, traumatic and terrible and miraculous, are destroying...

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.

Mermaid Bay's annual carnival is here, and the best performance at the parade will win a pretty pearl necklace! For the mermaids' act, Rosa plans to perform amazing tricks on the back of a magical water pony. But the pony is stolen! Is someone trying to ruin the friends' chance of winning?

"All of Kittentail Cove is excited for Fish-mas, but things begin to go wrong when Coral is unable to mail her little brother's letter to Santa Paws in time"--

"When Cora reads a short story she wrote about a narwhal in her English class, Vivian Shimmermore mocks her and says that everyone knows that narwhals are fake. Suddenly Cora and her friends are embarking on an exciting quest to find these not-so-mythical creatures and prove Vivian wrong."--Page 4 of cover.

Best friends Molly, a human, and Merrin, a mermaid, visit the Mermaid Moon festival on the night of Mermaid Moon, the one time each year mermaids can leave the sea.