Husband-and-wife team Sam and Remi Fargo are in Mexico, packing medical supplies in the wake of an earthquake, when they come upon a remarkable discovery--the mummified remains of a man clutching an ancient sealed pot. Within the pot is a Mayan book, a codex larger than any known before.

The book contains astonishing information about the Mayans, their cities, and about mankind itself. The secrets are so...