Worlds of the Imperium — Keith Laumer

When Brion Bayard was kidnapped and brought to the alternate world where Earth's history took a different turn, it was not a pleasant experience. It was, however, a startling experience. Here was a world that was just like the Earth he was taken from--with just a few subtle changes. On top of all this, Brion was given a puzzling assignment by his captors. He was to secretly enter a palace, and kill a dangerous and tyrannical dictator. There was one, small catch--the hated dictator in this world was the mirror image of Brion Bayard. For on an Alternate Earth, Brion's is his own worst enemy!


Of the vast number of alternate Earths, only three worlds are in contact with one another. Between and around them swirls the zone of horror and desolation called the "Blight"--the remains of the countless Earths that discovered the Maxoni Drive and failed to control it--Earths where life is no longer found, or no longer recognizable...

One man holds the key to survival in a universe where life itself is a diminishing probability. His mission: assassinate his alternate self!