From the Himalayas' frozen peaks to the Congo's diamond fields, from a lost era's subterranean labs to the Smithsonian's glittering halls, Sigma Force will face its most daunting challenges to...
In the frozen abyss of the Polar Ice Cap, an American deep-sea scientific research team discovers a Russian ice station hidden deep within a submerged iceberg. As word of the existence of the secret...
An inexplicable explosion rocks the antiquities collection of a London museum and the race begins to determine how it happened, why it happened, and what it means.
