John Norman 
Renegades of Gor 

Battles rage as the epic science fantasy adventure saga continues. The maritime ubarate of Cos and her allies are mounting an attack on Ar on two fronts—from the South with a major invasion force and in the North with an expeditionary force besieging Ar’s Station, Ar’s base of power in the vast arable basin of Gor’s mightiest river, the Vosk. Dietrich of Tarnburg, a mercenary, has seized Torcodino, with its stores of military supplies, to temporarily halt the march of Cos on Ar in order to buy Ar time to organize for her defense. Cabot has delivered letters from Dietrich to the regent of Ar, apprising him of the situation at Torcodino. Tarl escapes his imprisonment and ponders whether he should then flee Ar’s Station, making his way to freedom through its miseries and desolations, its ruins and flames, or shall he remain, to defend her weakened, betrayed, starving defenders, those who had been his very captors?   Rediscover this brilliantly imagined world where men are masters and women live to serve their every desire.  Renegades of Gor is the 23rd book in the Gorean Saga, but you may enjoy reading the series in any order.