To Kill a Kingdom – Alexandra Christo

Princess Lira is siren royalty and the most lethal of them all. With the hearts of seventeen princes in her collection, she is revered across the sea. Until a twist of fate forces her to kill one of her own. To punish her daughter, the Sea Queen transforms Lira into the one thing they loathe most–a human. Robbed of her song, Lira has until the winter solstice to deliver Prince Elian’s heart to the Sea Queen and or remain a human forever.

The ocean is the only place Prince Elian calls home, even though he is heir to the most powerful kingdom in the world. Hunting sirens is more than an unsavory hobby–it’s his calling. When he rescues a drowning woman in the ocean, she’s more than what she appears. She promises to help him find the key to destroying all of sirenkind for good–But can he trust her? And just how many deals will Elian have to barter to eliminate mankind’s greatest enemy?

Deep Blue – Jennifer Donnelly

Deep in the ocean, in a world not so different from our own, live the merpeople. Their communities are spread throughout the oceans, seas, and freshwaters all over the globe. When Serafina, a mermaid of the Mediterranean Sea, awakens on the morning of her betrothal, her biggest worry should be winning the love of handsome Prince Mahdi. And yet Sera finds herself haunted by strange dreams that foretell the return of an ancient evil. Her dark premonitions are confirmed when an assassin’s arrow poisons Sera’s mother. Now, Serafina must embark on a quest to find the assassin’s master and prevent a war between the Mer nations. Led only by her shadowy dreams, Sera searches for five other mermaid heroines who are scattered across the six seas. Together, they will form an unbreakable bond of sisterhood and uncover a conspiracy that threatens their world’s very existence.

Wake – Amanda Hocking

Gorgeous. Fearless. Dangerous. They’re the kind of girls you envy; the kind of girls you want to hate. Strangers in town for the summer, Penn, Lexi and Thea have caught everyone’s attention—but it’s Gemma who’s attracted theirs. She’s the one they’ve chosen to be part of their group.

Gemma seems to have it all—she’s carefree, pretty, and falling in love with Alex, the boy next door. He’s always been just a friend, but this summer they’ve taken their relationship to the next level, and now there’s no going back. Then one night, Gemma’s ordinary life changes forever. She’s taking a late night swim under the stars when she finds Penn, Lexi and Thea partying on the cove. They invite her to join them, and the next morning she wakes up on the beach feeling groggy and sick, knowing something is different.

Suddenly Gemma is stronger, faster, and more beautiful than ever. But her new powers come with a terrifying price. And as she uncovers the truth, she’s is forced to choose between staying with those she loves—or entering a new world brimming with dark hungers and unimaginable secrets.

Ingo – Helen Dunmore

By the Cornwall coast where Sapphire lives with her family, it’s easy to hear the call of the sea. Too easy.

When the sea called to Sapphy’s father, he vanished from her life. When the sea called to her brother, he started disappearing for hours on end. And now the sea is calling to Sapphy, and she feels its pull more strongly than she’s ever felt anything in her life.

In a novel full of longing, mystery, and magic, Helen Dunmore takes us to a new world that has the power both to captivate and to destroy. At the waterline, the two worlds of Air and Ingo meet. Sapphy and her brother, Conor, find themselves at the boundary between these worlds, in a place of danger and amazing discoveries.

The Mermaid’s Sister – Carrie Anne Noble

In a cottage high atop Llanfair Mountain, sixteen-year-old Clara lives with her sister, Maren, and guardian Auntie. By day, they gather herbs for Auntie’s healing potions; by night, Auntie spins tales of faraway lands and wicked fairies. Clara’s favorite story tells of three orphaned infants—Clara, who was brought to Auntie by a stork; Maren, who arrived in a seashell; and their best friend, O’Neill, who was found beneath an apple tree.

One day, Clara discovers iridescent scales just beneath her sister’s skin: Maren is becoming a mermaid and must be taken to the sea or she will die. So Clara, O’Neill, and the mermaid-girl set out for the shore. But the trio encounters trouble around every bend. Ensnared by an evil troupe of traveling performers, Clara and O’Neill must find a way to save themselves and the ever-weakening Maren.

And always in the back of her mind, Clara wonders, if my sister is a mermaid, then what am I?

Of Poseidon – Anna Banks

Galen, a Syrena prince, searches land for a girl he’s heard can communicate with fish. It’s while Emma is on vacation at the beach that she meets Galen. Although their connection is immediate and powerful, Galen’s not fully convinced that Emma’s the one he’s been looking for. That is, until a deadly encounter with a shark proves that Emma and her Gift may be the only thing that can save his kingdom. He needs her help–no matter what the risk.

The Siren – Kiera Cass

Kahlen is a Siren—bound to serve the Ocean by luring humans to their watery graves with her voice, which is deadly to any human who hears it. Akinli is human—a kind, handsome boy who’s everything Kahlen ever dreamed of. Falling in love puts them both in danger… but will Kahlen risk everything to follow her heart?

Rising – Holly Kelly

In a war between the humans and the inhabitants of the sea—humans will lose. Xanthus Dimitriou—the most lethal Dagonian to rise from the ocean—is on a mission to save mankind from annihilation. But first there’s one small thing he needs to do… kill a beautiful young woman in a wheelchair.

Killing her doesn’t start out as part of his plan. He entrenches himself deep in the human world. Aligning himself with his enemies, he prepares to send them to Triton to face their punishment. Then Sara Taylor rolls onto the scene. Xanthus knows at once she’s a criminal. And her crime? Being born. She’s a human/Dagonian half-breed, an abomination. Killing her should be an easy job. All he has to do is break into her apartment, slit her throat, and feed her body to the sharks. Simple, right? Wrong. If only she weren’t so beautiful, so innocent, so sweet… Saving the world may have to wait. It appears Xanthus has a woman to save. But protecting her may cost him his own life.

Siren’s Secret – Debbie Herbert

In the dark bayou waters, two deadly secrets collide. 

Shelly, a shapeshifting mermaid, is out swimming on a swelting southern night when she witnesses a serial killer disposing of his latest victim. He can’t afford to let her live to tell the tale. She can’t afford to let a human reveal her true identity. With each becoming the hunter and the hunted, a lethal game ensures. Should Shelly be exposed, it’s not just her life, but the lives of her secret mermaid clan—and all of the mermaid world—are at risk. Caught in the middle is the sheriff who suspects his girlfriend is keeping secrets and knows something about the killer terrorizing the bayou he’s sworn to protect. He’s determined to solve the murders at any cost . . .

Lies Beneath – Anne Greenwood Brown

Calder White lives in the cold, clear waters of Lake Superior, the only brother in a family of murderous mermaids. To survive, Calder and his sisters prey on humans and absorb their positive energy. Usually, they select their victims at random, but this time around, the underwater clan chooses its target for a reason: revenge. They want to kill Jason Hancock, the man they blame for their mother’s death.

It’s going to take a concerted effort to lure the aquaphobic Hancock onto the water. Calder’s job is to gain Hancock’s trust by getting close to his family. Relying on his irresistible good looks and charm, Calder sets out to seduce Hancock’s daughter Lily. Easy enough, but Calder screws everything up by falling in love–just as Lily starts to suspect there’s more to the monster-in-the-lake legends than she ever imagined, and just as the mermaids threaten to take matters into their own hands, forcing Calder to choose between them and the girl he loves.

One thing’s for sure: whatever Calder decides, the outcome won’t be pretty.

Emerge – Tobie Easton

Lia Nautilus may be a Mermaid but she’s never lived in the ocean. War has ravaged the seven seas ever since the infamous Little Mermaid unleashed a curse that stripped Mer of their immortality. Lia has grown up in a secret community of land-dwelling Mer hidden among Malibu’s seaside mansions. Her biggest problems are surviving P.E. and keeping her feelings for Clay Ericson in check. Sure, he’s gorgeous in that cocky, leather jacket sort of way and makes her feel like there’s a school of fish swimming in her stomach, but getting involved with a human could put Lia’s entire community at risk. So it’s for the best that he’s dating that new girl, right?

That is, until Lia finds out she isn’t the only one at school keeping a potentially deadly secret. And this new girl? Her eyes are dead set on Clay, who doesn’t realize the danger he’s in. If Lia hopes to save him, she’ll have to get closer to Clay. Lia’s parents would totally flip if they found out she was falling for a human boy, but the more time she spends with him, the harder it is for her to deny her feelings. After making a horrible mistake, Lia will risk everything to stop Clay from falling in love with the wrong girl.

The Little Mermaid – Hans Christian Anderson

The youngest daughter of the Sea King cannot wait to be old enough to go to the surface and see the world of humans. Her first visit there changes her life forever when she saves a prince from drowning, and comes to love him above all others. For the chance to win his love and gain an immortal soul, the little sea princess is willing to risk everything…

Goddess of the Sea – P. C. Cast

Home alone on the night of her twenty-fifth birthday, Air Force Sergeant Christine Canady yearned for something to cure her loneliness. After drinking too much champagne, she recited a divine invocation to revive her humdrum life. But how was she to know the spell would actually work?
 
When her plane crashes into the ocean, CC’s life changes forever. She awakens, bewildered, to find herself in a legendary time and place ruled by magic—and in the body of the mythic mermaid Undine. But danger lurks in the waters, ready to swallow CC whole. Taking pity on her, the goddess Gaea turns her into a damsel, that she might seek shelter on land. But when a dashing knight comes to CC’s rescue—a dream-come-true she should be falling for—she instead aches for the sea and the darkly sexy merman who’s stolen her heart…

Tides – Betsy Cornwell

When high school senior Noah Gallagher and his adopted teenage sister, Lo, go to live with their grandmother in her island cottage for the summer, they don’t expect much in the way of adventure. Noah has landed a marine biology internship, and Lo wants to draw and paint, perhaps even to vanquish her struggles with bulimia. But then things take a dramatic turn for them both when Noah mistakenly tries to save a mysterious girl from drowning. This dreamlike, suspenseful story—deftly told from multiple points of view—dives deeply into selkie folklore while examining the fluid nature of love and family.

Storm Siren – Mary Weber

As a slave in the war-weary kingdom of Faelen, seventeen-year-old Nym isn’t merely devoid of rights, her Elemental kind are only born male and always killed at birth–meaning, she shouldn’t even exist.

Standing on the auction block beneath smoke-drenched mountains, Nym faces her fifteenth sell. But when her hood is removed and her storm-summoning killing curse revealed, Nym is snatched up by a court advisor and given a choice: be trained as the weapon Faelen needs to win the war or be killed.

Choosing the former, Nym is unleashed into a world of politics, bizarre parties, and rumors of an evil more sinister than she’s being prepared to fight . . . not to mention the trainer whose dark secrets lie behind a mysterious ability to calm every lightning strike she summons.

But what if she doesn’t want to be the weapon they’ve all been waiting for? Set in a beautifully eclectic world of suspicion, super abilities, and monsters, Storm Siren is a story of power. And whoever controls that power will win.

The Mermaid’s Daughter – Ann Claycomb

Kathleen has always been dramatic. She suffers from the bizarre malady of experiencing stabbing pain in her feet. On her sixteenth birthday, she woke screaming from the sensation that her tongue had been cut out. No doctor can find a medical explanation for her pain, and even the most powerful drugs have proven useless. Only the touch of seawater can ease her pain, and just temporarily at that.

Now Kathleen is a twenty-five-year-old opera student in Boston and shows immense promise as a soprano. Her girlfriend Harry, a mezzo in the same program, worries endlessly about Kathleen’s phantom pain and obsession with the sea. Kathleen’s mother and grandmother both committed suicide as young women, and Harry worries they suffered from the same symptoms. When Kathleen suffers yet another dangerous breakdown, Harry convinces Kathleen to visit her hometown in Ireland to learn more about her family history.

In Ireland, they discover that the mystery—and the tragedy—of Kathleen’s family history is far older and stranger than they could have imagined.  Kathleen’s fate seems sealed, and the only way out is a terrible choice between a mermaid’s two sirens—the sea, and her lover. But both choices mean death… 

Bay of Sighs – Nora Roberts

Mermaid Annika is proud to have been chosen for such an important quest. But now that her identity has been revealed, her time is running out. She knows that soon she must return to her people. But she also knows that she is in love with Sawyer King – the brave and loyal adventurer with secrets of his own.

As Annika, Sawyer and their four friends hunt for the mysterious ‘star of water’, the goddess Nerezza sends a terrifying foe to destroy them. It seems there is no place for love and desire at such a dark time. And so Sawyer tries to protect Annika by pushing her away.

But true love cannot be denied. And in a battle between the dark and the light – it might be the only thing that can save them from a terrible fate.

Sea Witch – Sarah Henning

Ever since her best friend Anna died, Evie has been an outcast in her small fishing town. Hiding her talents, mourning her loss, drowning in her guilt.

Then a girl with an uncanny resemblance to Anna appears on the shore, and the two girls catch the eyes of two charming princes. Suddenly Evie feels like she might finally have a chance at her own happily ever after.

But magic isn’t kind, and her new friend harbors secrets of her own. She can’t stay in Havnestad—or on two legs—without Evie’s help. And when Evie reaches deep into the power of her magic to save her friend’s humanity—and her prince’s heart—she discovers, too late, what she’s bargained away.

Sea Change – Aimee Friedman

Sixteen-year-old Miranda Merchant is great at science. . .and not so great with boys. After major drama with her boyfriend and (now ex) best friend, she’s happy to spend the summer on small, mysterious Selkie Island, helping her mother sort out her late grandmother’s estate.

There, Miranda finds new friends and an island with a mysterious, mystical history, presenting her with facts her logical, scientific mind can’t make sense of. She also meets Leo, who challenges everything she thought she knew about boys, friendship. . .and reality.

Into the Drowning Deep – Mira Grant

Seven years ago the Atargatis set off on a voyage to the Mariana Trench to film a mockumentary bringing to life ancient sea creatures of legend. It was lost at sea with all hands. Some have called it a hoax; others have called it a tragedy.

Now a new crew has been assembled. But this time they’re not out to entertain. Some seek to validate their life’s work. Some seek the greatest hunt of all. And some seek the truth. But for the ambitious young scientist Victoria Stewart this is a voyage to uncover the fate of the sister she lost.

Whatever the truth may be, it will only be found below the waves.

But the secrets of the deep come with a price.

Everblue – Brenda Pandos

She wanted her life to change … he wanted his to stay the same.

Seventeen-year-old Ashlyn Lanski is tired of her boring, single life. Swimming and spending time with Tatiana, her best friend, are her only sanctuary. The girls plan to leave their drab lakeside town far behind for college, and Ash hopes to finally ditch her longtime crush for Finley, Tatiana’s twin brother. But when Tatiana and her family fail to return home after a family emergency, Ashlyn makes an irrational decision to deal with her loss of them.

Finley Helton and his family are good at blending in with humans as they run their sailing charter business in Lake Tahoe. The truth is they guard an ancient secret. When a not so routine meeting forces Finley, Tatiana and their mother to return to their underwater home of Natatoria, they learn Fin’s father will lead a dangerous mission. They must stay in Natatoria and wait for his return, but Fin can’t stay caged up for long.

Secrets lurk beneath the deep blue waters of Lake Tahoe, and a simple lifesaving kiss will change their lives forever.

The Mermaid – Christina Henry

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 anytime she likes. But Barnum has never given up a money-making scheme in his life, and he’s determined to hold on to his mermaid.

Skin of the Sea – Natasha Bowen

Simi prayed to the gods, once. Now she serves them as Mami Wata—a mermaid—collecting the souls of those who die at sea and blessing their journeys back home.

But when a living boy is thrown overboard, Simi goes against an ancient decree and does the unthinkable—she saves his life. And punishment awaits those who dare to defy the gods.

To protect the other Mami Wata, Simi must journey to the Supreme Creator to make amends. But all is not as it seems. There’s the boy she rescued, who knows more than he should. And something is shadowing Simi, something that would rather see her fail . . .

Danger lurks at every turn, and as Simi draws closer, she must brave vengeful gods, treacherous lands, and legendary creatures. Because if she fails, she risks not only the fate of all Mami Wata, but also the world as she knows it.