Sandstorm (Sigma Force Novels Book 1)

The explosive first adventure in James Rollins' bestselling Sigma Force series!
A freak explosion in the British museum in London ignites a perilous race for an earth-shaking power source buried deep beneath the sands of history. Painter Crowe is an agent for Sigma Force, a covert arm of the Defense Department tasked with keeping dangerous scientific discoveries out of enemy hands. When an ancient artifact points the way toward the legendary "Atlantis of the Sands," Painter must travel across the world in search of the lost city-and a destructive power beyond imagining.
But Painter has competition. A band of ruthless mercenaries, led by a former friend and ally, are also intent on claiming the prize, and they will destroy anyone who gets in their way.
Ancient history collides with cutting-edge science-with the safety of the world at stake!