In 1532, the greatest existing civilization in the Americas was overthrown by fewer than 200 conquistadors. Hundreds of tons of gold was plundered and shipped back to Spain, for the glory of the crown. But rumors have persisted since the conquest that the treasure obtained by the Spaniards was only a grain of sand in comparison to what was secreted away by the surviving Incas in mysterious underground chambers, supposedly built long before the arrival of the Spanish by a people unknown. Chinkana: The Subterranean Mysteries of the Incas, collects in one place all of the myths and legends surrounding the vast networks of subterranean roads and temples that are rumored to honeycomb the Sacred Valley of the Incas.