A New York Times Bestseller -- A top secret, U.S. government-sponsored undersea lab conducting vital biomedical research on a rare jellyfish known as the Blue Medusa suddenly disappears. At the same time, off Bermuda, a bathysphere is attacked by an underwater vehicle and left helpless a half mile below the surface, its passengers left to die. Suspecting a connection, Kurt Austin puts the NUMA team on the case. A hideous series of medical experiments...an extraordinarily ambitious Chinese criminal organization...a secret new virus that threatens to set off a worldwide pandemic. Austin and Zavala have been in tight spots before, but this time it?s not just their own skins they?re trying to save -- it?s the lives of millions.
