The Sign of the Mute Medusa

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.