Dirk Pitt returns, in the thrilling new novel from the grand master of adventure and #1 New York Times bestselling author. While investigating a toxic outbreak in the Caribbean Sea that may ultimately threaten the United States, Pitt unwittingly becomes involved in something even more dangerousa post-Castro power struggle for control of Cuba. Meanwhile, Pitt's children, marine engineer Dirk and oceanographer Summer, are on an investigation of their own, chasing an Aztec stone that may reveal the whereabouts of a vast treasure. The stone was supposedly destroyed on the battleship Maine in Havana Harbor in 1898, which brings them both to Cuba as welland squarely into harm's way. The three of them have been in desperate situations before...but perhaps never quite as dire as the one facing them now.