A desperate attempt in 1917 to preserve the wealth and power of the Romanov Empire. A Cold War bomber lost with a deadly cargo. Mysterious deaths on the Black Sea linked to modern day smugglers of nuclear materials. At the center of it all is Dirk Pitt and his team from NUMA. As the danger escalates, there's only one man who can avert catastrophe. From London to Washington, from the Black Sea to the Mediterranean, the action never stops, as Pitt races...

Dirk Pitt of the National Underwater and Marine Agency leads a team to the Antarctic to find out why dolphins and seals are disappearing from around Seymour Island. This brings him in conflict with a mining company which is using deadly sound waves to drill for diamonds. But it also brings romance with the villain's beautiful daughter. By the author of Sahara.

A potential breakthrough discovery to reverse global warming . . . a series of unexplained sudden deaths in British Columbia . . . a rash of international incidents between the United States and one of its closest allies that threatens to erupt into an actual shooting war . . . NUMA director Dirk Pitt and his children, Dirk. Jr. and Summer, have reason to believe there's a connection here somewhere, but they also know they have very little time to...

A mysterious ship sealed fast in a giant North Atlantic iceberg becomes the cause and focus of Air Force Major Dirk Pitt's investigation into international conspiracy and terror.