Now published in 40 territories outside the United States, here is a look back at the international covers for Sandstorm, 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