"Dayeon wants to be a haenyeo just like Grandma. The haenyeo dive off the coast of Jeju Island to pluck treasures from the sea--generations of Korean women have done so for centuries. To Dayeon, the haenyeo are as strong and graceful as mermaids. To give her strength, Dayeon eats Grandma's abalone porridge. She practices holding her breath while they do the dishes. And when Grandma suits up for her next dive, Dayeon grabs her suit, flippers, and goggles....

"Rosie is a little mermaid who loves dancing with dolphins and building towering sandcastles. But she's just moved to Trident City and doesn't have one single friend to join her. She's too young to go to Trident Academy with her older cousin Rocky, her parents are busy at work, and Manny Nanny, who takes care of Rosie, can be kind of boring, even though she's super nice. Then, Rosie meets Aqua and finds that having a new friend might be more trouble...

Shelly Siren loves playing on Trident Academy's Shell Wars team. But is she ready to complete in the Shell Wars Championships in the fintastically famous city of Atlantis? As part of their trip, the mergirls get a tour of Atlantis and swim through Poseidon's Temple where Shelly sees a spookfish, which according to legend, carries a horrible curse.

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,...

In this graphic novel loosely based on H.G. Wells's "The War of the Worlds," armed unicorns in a huge spaceship invade the peaceful mermaid planet of Ocea.

"Fish Girl, a young mermaid living in a boardwalk aquarium, has never interacted with anyone beyond the walls of her tank until a chance encounter with an ordinary girl, Livia. Their growing friendship inspires Fish Girl's longing for freedom, independence, and a life beyond the aquarium tank"--

While searching for undersea treasure, Captain Banana Beard and the Nearly Fearless Monkey Pirates find Neptune's Trident, which is cursed, and are immediately attacked by zombie mermaids.

"As princess of the island kingdom Visidia, Amora Montara has spent her entire life training to be High Animancer--the master of souls. The rest of the realm can choose their magic, but for Amora, it's never been a choice. To secure her place as heir to the throne, she must prove her mastery of the monarchy's dangerous soul magic. When her demonstration goes awry, Amora is forced to flee. She strikes a deal with Bastian, a mysterious pirate: he'll...

When Emily makes a wish on a magic stone, she gets a glimpse of what the future holds -- and it's a disaster! She tries to make things right, but each trip through time takes Emily to a future where things turn out badly for either the humans of Brightport or the merpeople of Shiprock. Plastic pollutes the ocean, garbage overflows the landfills, and the two towns are no longer getting along. Emily realizes she can't save her hometown and the ocean...