A heart-stopping novel of adventure and suspense from #1 New York Times bestselling author James Rollins—the first in his critically acclaimed 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

"Gripping...a first-rate nail biter."

—Tampa Tribune

James Rollins—the author of The Doomsday Key, The Last Oracle, The Judas Strain, Black Order, and other pulse-pounding, New York Times bestsellers—carries readers into the heart of darkness in his classic thriller, Amazonia. Lincoln Child, New York Times bestselling co-author (with Douglas Preston) of Cemetery Dance and other Agent Pendergast thrillers,

Revisit the remarkable debut novel that launched the career of New York Times bestselling author James Rollins.

The Earth's last mystery is about to be revealed...The world beneath the world is waiting.

Beneath the ice at the bottom of the Earth is a magnificent subterranean labyrinth, a place of breathtaking wonders—and terrors beyond imagining. A team of specialists led by archaeologist