The Messiah Stone — Martin Caidin

Doug Slavers plays the mercenary game, and every time he plays he wins: in Africa, Central America, Vietnam--or right here in the USA. Now he's on the biggest hunt of his life: to find and seize a certain object that, incredibly, confers the power of absolute belief on its owner. Christ once wore it. So did Mohammed. The last to own it was Adolf Hitler. The next will rule the world. Its code name -- THE MESSIAH STONE