A long awaited fishing trip turns scary for cousins Hunter and Leo when a sea monster appears.

When Emma's grandfather, the Poseidon king, suggests she and her Syrena love, Galen, visit a small town called Neptune, they find themselves in the middle of a power struggle that threatens not only their love but their ocean kingdoms.

Galen, prince of the Syrena, is sent to land to find a girl he's heard can communicate with fish. He finds Emma and after several encounters, including a deadly one with a shark, Galen becomes convinced Emma holds the key to his kingdom.

A mean octopus has dumped garbage all over Mermaid Kingdom! The only way to save the mermaids is to find the magic crown!

"The Deadmen are back...But so are the demons who have broken free of their eternal prison and are bent on mankind's destruction. The worst of the lot is Vine, determined to claim their lives for taking hers. She will see the world burn...and has the perfect lure to destroy them all. One of their own. Kalder Dupree has never known a day of mercy. Born to the cruelest of mer-races, he sacrificed himself for his crew and is in Vine's hands. He expects...

"Deep down under the sea live Merbaby and Merdaddy. They talk to the fish, have seaweed picnics, float with the jellyfish, hide with the otters, surf with the turtles, and save any hapless sailors who need help. The water is the best place Merbaby can imagine being . . . until Merdaddy says their fingers look like raisins and their teeth are chattering.