It's difficult being a siren. Lucia Caria can give you a first hand account of that. All the pollution, garbage, and interference from humans is driving her kind to extinction. She is still a young siren, one who has not yet learned about the corruption of men. All sirens, when they come of age, have a choice. Try and survive in the world of men, or swim for the rest of their immortal lives with the pack, hunting men and the occasional woman. Lucia doesn't understand the old traditions, and she seeks to change them.
One special night, she travels to a ball being thrown in Venice, Italy, by Prince Tristan Saerdum of Hellosam, the island country that lies in the middle of the Mediterranean Sea and is constantly being hunted by her pack. Bumping into strangers has always been Lucia's strong point, but what will happen when love follows?
In the deep blue sea lies the Mermaid Kingdom where Princess Mariana lives with her family and friends
She loves to explore the Islands with her human friend Erasmus who is a sailor
Mariana and her family travel to another Kingdom to attend a royal ball when a ship arrives and the humans try to capture Mariana but she escaped with the help of Erasmus
There is a treasure which is hidden in a temple underwater
Mariana and Erasmus have to find it first or all will be lost