The Pearls of Arcadia: Book 2 of Saltwater Series

Saltwater Series Synopsis.
The sea holds mysteries too deep for the normal human mind to grasp.
An ancient race from the Deep Ocean, keepers of seven mysterious orbs, are faced with the massive task of re aligning a fractured Earth. They are desperate for human assistance but remain hidden for fear of violence.
When sixteen-year-old Finn discovers he is half sea-born, he finds himself at the center of a disturbing prophesy which demands he become their reluctant hero.