In the future, devastating natural disasters have left the world a very different place. With little land left, topsiders live crowded into stack hovels, food is rationed, and corruption is rampant. Floating on the ocean’s surface, huge enclosed ships crowded with families exist with no home base, depending on finding supplies from others. Deep down on the ocean floors, colonies have sprung up, with a whole new economy built around farming the oceans.
That was where Ty was born. He has never lived above the water. He loves his home, and his family is happy. though lifeis full of dangers, not only from the natural predators but also the brutal pirates.
Then Ty meets Gemma, a topsider, an orphan who has come to the undersea settlement searching for her missing brother. The deeper Ty and Gemma dig for information about her brother, the more attention they attract.