Condition: Acceptable. Please see the images for more details.
Blurb: “Envoys from Earth The two of them were hand picked for the mission to the distant planet of Turquoise. Detective Captain C. St. Cyr combined in a unique way the qualities of lightening fast intelligence and dazzling inborn intuition. Detective Lieutenant U. Tuli was unsurpassed in her blending of computer-like logical abilities and almost religious devotion to duty. Now both of them were heading for the most disturbing trouble spot in the galaxies - to deal with a dark threat to the perfect harmony of the interplanetary confederation.”
Cover art: Unknown