Lee Phillips, a pistol toting cowboy-historian stumbles on five vulture-eaten bodies and a dangerous and deadly mystery in a remote canyon of Big Bend National Park, Texas. The canyon harbors two deadly secrets. In an abandoned mine U.S. and Mexican conspirators have hidden a hoard of refined mercury--enough to poison and murder hundreds of thousand of innocents.Nearby, the Ark of the Convenant rests in a camoflaged adobe vault--placed there by the 7 Guardians of this holiest of holy relics. Mariscal is a killing ground and Lee becomes a target.Lee must use all his academic training, his...