Worlds of the Imperium
Author: first_name: Keith
last_name: Laumer
Language: English
Year: 1962

For Brion Bayard, the discovery of an alternate world to Earth where history took a different turn in the road was not a pleasant experience. His kidnapping brought him some startling revelations. Here was a world in which appeared identical doubles of famous personages—including a dangerous and hated dictator named Brion Bayard!
His assignment seemed simple enough. Dressed as his double, Brion was to enter the enemy stronghold, kill the dictator, and take his place until law and order could be