The Valley-Westside War: A Novel of Crosstime Traffic: 6

Usually Crosstime Traffic concerns itself with trade. Our world owns the secret of travel between parallel continuums and we mean to use it to trade for much-needed resources with the worlds next door. Preferably without letting them know about any of that parallel-worlds stuff.. But theres one parallel world thats different. In it the atomic war broke out in 1967 at the height of the Summer of Love. Now Crosstime Traffic has been given a different sort of mission: find out what on earth or on the many earths went wrong in The Valley-Westside War the sixth book in Harry Turtledoves parallel adventure series.