Neptune, King of the ocean, sends half-mermaids Emily and Aaron to the land of the midnight sun to investigate the source of the dangerous storms brewing in the ocean.

When Splash the merminnie's flashy tricks get him in trouble, it's up to Pinkalicious and her friends to save him.

When she starts at Lady Sealia Foam's Mermaid School, Marnie Blue worries about fitting in and doing the right thing when a classmate is in danger.

Marnie competes against her friend Orla and Gilly, a new student at Lady Sealia Foam's Mermaid School, for the lead role of Queen Maretta in the annual Clamshell Show.

Fred is a mermaid. But stop right there. Whatever image you're thinking of right now, forget it. Fred is not blonde. She's not buxom. And she's definitely not perky. In fact, Fred can be downright cranky. And it doesn't help matters that her hair is blue. Being a mermaid does help Fred when she volunteers at the New England Aquarium. But, needless to say, it's there that she gets involved in something fishy. Dangerous levels of toxins have been found...

Publisher Annotation: Mermaids are rarely seen, and even more rarely met. But, if you gather some natural craft supplies-shells, coral, driftwood, and sea glass-and make her a gift, you might just befriend one! Will you spot a mermaid in the waves just off shore? If you do, will you be ready? By being observant, resourceful, and friendly, you can make a beautiful crown from natural beach materials that will show your new mermaid friend you truly care....

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

"Ariel is a mermaid who longs for adventure and to explore the human world! After making a deal with the sea witch, Ursula, will Ariel be able to find her voice?"--

On Mermaid Day, the mer-queen throws a big bash and sea creatures of all kinds attend, including a shy shark who joins in the dancing.