Flash of Gold — Tom Lowe

In the world of maritime treasure hunting, former college professor Walt Baker is about to hit the lottery. More than 300 years ago, legendary Spanish galleon, Santa Ramona, sank in a hurricane somewhere off the coast of Florida. The ship was carrying gold, silver, jewels, and artifacts worth an estimated 10 billion in today's dollars. With ten billion at stake, the best criminal minds will scheme to take what's not theirs. When they try to frame Sean O'Brien's friend, Nick Cronus, for the murder of one of Walt Baker's divers, O'Brien begins to put the puzzle pieces together and sees a frightening picture ... not only for Nick but also for Walt, his daughter, and every member of the salvage crew.When one of the richest treasures in nautical history is found on the ocean floor, the sharks start to circle. And as they come closer, they begin enclosing around one man, because the only thing standing in their way to recover billions is Sean O'Brien.