Scourge of Antares [Dray Prescot #47]. Dray Prescot, #47

If you are prepared to hurl yourself into adventure, to face peril with a brave heart, to risk all, then the marvelous world of Kregen offers you everything you have ever dreamed. For Dray Prescot the challenges are enormous. His task is to unite the sub-continent of Balintol against the Shanks, but due to the megalomaniac striving for power of various factions within the countries of Balintol, the whole place looks set to go up in flames.
Prescot has uncovered some of the details of a plot by the cultists of the religion of Dokerty to turn ordinary men and women into receptacles for demons, who then destroy wantonly until the frail human body can no longer support the intolerable demonic forces. Now he has escaped from the Dokerty temple with a mysterious young woman, Veda. They are fleeing for their lives as the Suns of Scorpio descend into night...