Ultimate Weapon

In his Introduction, Robert Silverberg writes: "e;I started [this story] in classic pulp mode, opening with my protagonist's name, showing that he was in big trouble, and providing a setting: "e;Laird Hammill raced frantically through the cold night of Denerix, largest world of the Shanador system. He was somewhere on a dark, vast plain outside the city of Lombrosa, and a half mile behind him lay ...