The latest pulse-pounding thriller from New York Times bestsellers Preston & Child. Nora Kelly, a young curator at the Santa Fe Institute of Archaeology, is approached by historian Clive Benton with a once-in-a-lifetime proposal: to lead a team in search of the so-called ''Lost Camp'' of the tragic Donner Party. This was a group of pioneers who earned a terrible place in American history when they became snow-bound in the California mountains in 1847, their fate unknown until the first skeletonized survivors stumbled out of the wilderness, raving about starvation, murder-and cannibalism. Benton tells Kelly he has stumbled upon an amazing find: the long-sought diary of one of the victims, which has an enigmatic description of the Lost Camp. Nora agrees to lead an expedition to locate and excavate it - to reveal its long-buried secrets. Once in the mountains, however, they learn that discovering the camp is only the first step in a mounting journey of fear. For as they uncover old bones,