Kur of Gor

An alien race bent on conquering Counter Earth has Tarl Cabot in its sights. The Kur race once had a planet of its own, but somehow it was rendered unviable, either destroyed or desolate, apparently by the Kurs’ own hands. So they searched for a new home and found not one but two suitable planets—planets they set their minds to conquering. But these planets, Earth and its sister planet Gor, the Counter Earth, were not undefended. The Kur attempted their conquest four times, only to be beaten bac