Fantasy roman - Primitiva människor enslavade av överlägsen ras från blodportaler?

Jag tror att du letar efter " Star Requiem " en> kvartett av Adrian Cole.

Redigerad från förord i den fjärde boken, "Labyrinth of Worlds ":

Man once ruled over an Empire that stretched throughout countless worlds, worlds that formed a complex cycle, a self-contained chain.

In his hunger for knowledge, Man unlocked the door to another realm, that of the alien race, the Csendook, and thus began a thousand year war in which these ferocious aliens, faster and stronger than Man, began the inexorable conquest of his Empire.

In desperation, facing extinction, Man's Imperator Elect and his Consulate sought to escape the Csendook tide. On the world of Eannor, the Imperator's Prime Consul and the principal scientist, Zellorian, used dark and forbidden powers to create a gate into a separate cycle of worlds, a feat thought to be impossible. Zellorian brought the Imperator Elect, his remaining Consulate and the last of Man's army through to the world of Innasmorn, the Mother of Storms.

Innasmorn is a world of elemental forces, where the storms are worshipped as gods by its inhabitants. They, who are themselves partly elemental, have no use for technology and have almost completely outlawed the use of metals. When they learn of the arrival of the intruders, the Men of the Imperator, they begin preparations for war.

A small group of Innasmorians under Ussemitus, a woodsman, search for a forbidden land far in the west of Innasmorn, which is said to contain ancient powers. They fear that Zellorian will seek out these powers and attempt to harness them in his new thirst for control.

[Elsewhere] Aurangzar, now Supreme Sanguinary of the Csendook, is obsessed with the belief that the Imperator Elect is still alive. He sends one of his loyal commanders, Vorenzar, on the trail of the Imperator...

Den del där en Csendook "jaktfest" går in i en av portalerna:

Using an Opener, one of the Csendook sub-races bred for the creating of gates between worlds, Vorenzar finds a way through to Innasmorn.

Vid en annan punkt i berättelsen skickas konsulen genom porten:

Zellorian sends Pyramors back to Eannor in exchange for the safety of his rebels. As he travels through the gate between world cycles, Pyramors meets an Accrual, a parasitic being that feeds on the blood and sacrifices that create gates. The Accrual promises Pyramors a return to Innasmorn if he aquires sacrifces for it.

Du kan också läsa in kapitlen i boken här .

Obs : Det finns likheter mellan denna serie och författarens egen " Blood Red Angel "som publicerades senare. I stället för en utomjordisk ras är den härskande klassen i den boken högt utvecklade människor som kallas "Lightbenders". Men de är grymma bara detsamma. De använder sina portaler att jaga och samla mat, inklusive humana arter.

Jag tror inte att det här är vad du är ute efter, men en del av din beskrivning påminner mig om Julian Mays Pliocene Saga ...