First Casualty

They are the first time travelers--guinea pigs in an experiment that cannot fail. From a future ravaged by plague, they must travel thousands of years into the past to the dawn of civilization. Among tribes of primitive hunters, they will trace a fatal chain of events--and alter history to save humanity from itself. Three individuals obtain the control of three strange silver boxes of extraordinary power that, if combined, could unlock the secrets of the universe, and each owner battles private demons in their quest to unite the boxes Three individuals obtain control of three strange silver boxes of extraordinary power that, if combined, could unlock the secrets of the universe, and the owners battle private demons in their quest to unite the boxes