An Egyptian hieroglyph…a Celtic shield…a secret Gutenberg book…an English mariner’s log…an eminent scientist’s lab notes…and the fate of humanity hanging in the balance. At dawn, the fanatical Fist of God cult plans to unleash a plague that will render all non-believers sterile. A series of ancient clues scattered across the globe may hold the key to mankind’s survival…but only if pathologist Sebastian Cole—with help from NSA operatives Alton and Mallory Blackwell—can piece together the cryptic pieces of information in time.