A research ship is adrift off the coast of Antarctica . . . Weeks earlier, one of the crew messaged NUMA claiming to have made a world-shattering discovery. Followed by silence. Kurt Austin and Joe Zavala are despatched to the icy waters. They find a sinking ship, her crew murdered, the vessel ransacked - and one research scientist missing. What was discovered? Who wanted it badly enough to kill everyone? And where did they vanish to? One way or another Kurt's heading for Antarctica to learn the truth. But he won't just be risking sub-zero temperatures, avalanches and blizzards. For someone is preparing to turn this secret discovery into a weapon of chilling power - unless Kurt can find them first . . .