On the planet Kregen that circles Antares, the brightest star of the Constellation of the Scorpion, two forces contend for the world's destiny.

A Fortune for Kregen [Dray Prescot #21]
Fame and fortune may await the winners of the life and death game called Jikaida, but for Dray Prescot his triumphs seemed only to bring infamy and misfortune. An Earthman transposed to the distant world that circles the twin suns of Antares, Prescot had to find a way out of his Jikaida City exile for his homeland needed him in its hour of danger. But it seemed that fate now would place him in an even more terrifying game a treasure hunt played out in the illusion webbed catacombs of a haunted valley where desperate men came to find fortunes at the risk of their followers lives and their own sanity.

A Life for Kregen [Dray Prescot #19]
The world Kregen circles the twin suns of Antares, far distant from the skies of Earth. Yet Kregen is the ground on which the Earthman Dray Prescot must stand and fight for all he holds dear. For Prescot is the unwilling battle arm of the mysterious Star Lords who contend for that planet with the powerful Savanti. Yet Prescot's ambitions are his own, for he has inherited the remnant of a shattered empire and must fight to bring hope and freedom to all its peoples. By his side stands his princess, Delia of the Blue Mountains, and a band of stalwart companions of many races and species. But arrayed against him are flying armadas, armed hordes, the wizardry of a super scientist, and, most shocking of all, the fury and steel claws of his own daughter, Dayra!

A Sword for Kregen [Dray Prescot #20]
The most popular game among the many peoples of Kregen, world of Antares, is one that resembles chess, called Jikaida. Jikaida is a battle of wits and war game pieces that suited well the tension charged atmosphere that enveloped Dray Prescot. For reconquering Vallia was assuming the aspect of such a game move versus countermove, horde against horde! Then Dray Prescot found himself no longer in control of just a game he had become a living chessman on a real life board at the dreaded arena of Jikaida City. There every move was accompanied by bloodshed and behind every game might hang the fate of a city, an island, or even a nation!

A Victory for Kregen [Dray Prescot #22]
The ending of Prescot's stark adventures as a living chess piece in the city of blood games was to be as terrifying as the perils that had gone before. Because now that transposed Earthman had to fight his way back to his embattled Vallian homeland across a sky full of danger and a sea full of death. And when he returned if he could he would find the combat joined, his son at doom's door, his troops up against superior odds, and a battle he must personally fight that would be two battles in two different places at the same time!