A new alternate history of America from the author of The Peshawar Lancers, the bestselling novel the Chicago Sun-Times called “a pleasure to read” and Harry Turtledove hailed as “first-rate adventure all the way.” 1945: An ex-marine has discovered a portal that permits him to travel between the America he knows-and a virgin America untouched by European influence. 21st century: The two realities collide…