The Halfseas: Three Missing

For three children, what seemed just like their first day at a new school turns into much more. Sam has always loved water and dreamed of going to the ocean, so when he has the opportunity he dives right in.
Lily is missing her old best friend terribly and will do anything to be with her.
Leo is trying to find a way to avoid his old life as an orphan.
When the three kids meet each other and find out that they are all half sea people, they are bound together with a friendship that they will need in order to survive the chaos of the ocean. Just when they begin to understand how the sea world works, the three most prized objects in the whole sea kingdom are found missing and the children are blamed for it. The three halfseas are then forced on a mission to find the objects before the next full moon. Now, not only their reputations but their lives are now on the line.
In this adventure full of humor, danger, friendship, and fun, 3 11-year-old kids discover a brand new world that none of them could have imagined in their wildest dreams.