Makamano: The Shark Sight

When Sam learned she was going to be spending her summer on a remote island in the middle of the South Pacific, shipped off to live with family she never knew existed, she was less than thrilled. And judging from the lukewarm welcome she receives from her cousin, this distant part of her family feels the same way.
However, things begin to unravel shortly after her arrival. A mishap with a deadly tiger shark triggers an unnatural chain of events. Sam begins to learn more about the island of Makamano, and the bloody history that changed it forever. Now, armed with a mysterious power and on a quest to recover a lost artifact, Sam and her cousin will fight to save a man lost to the sea ten years ago, and will attempt to journey to a place few have ever gone: the bottom of the Pacific ocean.