Description of Black Sands by Colleen Coble
Mano Ohana believes he made a fateful mistake that cost the life of his best friend, Kale Silva. The night before he is to bring Kale's belongings to his family, Mano discovers nothing is what it seems: His friend is still alive--but he's in serious danger, a danger that threatens to spill over to the rest of the Silva family--and the entire Hawaiian islands.