Cole Samson, marine salvage expert, has been hired to explore a vast underwater oil bed by Unified Drilling. But this is no ordinary geological survey- it’s also the test flight of the top-secret airship Leviathan. A cryptic message from a waitress in a roadside diner sets Cole Samson and his team on a perilous quest to the top of the world when the discovery of a bizarre weapon from the Cold War pits him against the ruthless, Gregor Strelstin, arms merchant and killer, in a high stakes struggle across the frozen solitude of the Arctic.