The race is on to stop the devastating proliferation of the ultimate bioweapon. What begins as a quest for answers soon leads to a horrifying series of revelations at the crossroads of biological warfare and nanoscience. At this dangerous intersection, a skilled and sadistic assassin, an infamous Japanese war criminal, and a ruthless U.S. government official are all players in a harrowing game of power, treachery, and intrigue--a game whose winner will hold the world's fate literally in the palm of his hand.