At a conference table in the White House Situation Room, the president of the United States receives grim news: the Harbinger League, a network of mysterious figures strangely preoccupied with the future, has attained a dangerous level of power. Within a matter of decades, the League has gained the potential to control global corporations, natural resources, elections--even governments. The president must find a way to stop the League. It is in the conference room that he first learns of "WH52"--the code word for the future 52nd president of the United States, a prime target of the Harbinger...