Terry Gene Carr (1937-1987) was one of the most important editors in the science fiction field. Although most remembered for his long-running anthology series "Universe," which launched in 1971 and lasted seventeen volumes until 1987, Carr also edited two series of Ace Science Fiction Specials, which presented works by up-and-coming authors such as William Gibson (Neuromancer), Michael Swanwick (Into the Rift), Ursula K. le Guin (The Left Hand of Darkness), Alexei Panshin (Rite of Passage), and many more. His editing career was devoted, in many ways, to discovering and developing new talent in the field. His editing reach included "Year's Best" volumes of science fiction and fantasy, as well as quite a few other anthologies (both original and reprint).

"Warlord of Kor" was originally published in 1963 as half of an Ace Double, selected by legendary editor Donald A. Wollheim. It is an exciting interplanetary adventure, as humans probe the mysteries of the planet Hirlaj and the few remaining aliens who live there.