Tribesmen of Gor

In the tenth volume of John Norman's Gor series, Tarl Cabot faces a pivotal challenge on the harsh and caste-bound planet of counter-earth as he is called to prove his loyalty amidst a looming conflict involving the mysterious Others. Leaving the decadent city of Port Kar, he ventures into the wilds of Gor to defend its rulers and the Priest-kings, aware that the future of both Gor and Earth hangs in the balance.