Moon CalledAndre Norton
fantasy, young adult
Thora is the Chosen One. Pressed against her breast is the sacred jewel, possessing all the powers of the Moon. Makil is the Man of Pure Light, from the valley of enchantment and the swaying, sensual dance. In the golden scabbard at his side is the magical Sword of Lur.
Together they descend into an underground world of soulless machines and eternal night. High Priestess and Warrior, Jewel and Sword, they must join in blood and battle against the Dark Lord. To fail would mean the Holy Force would fail, and Thora and Makil would forever be entombed in the flesh of evil.
Andre Alice Norton (1912-2005) was an American science fiction and fantasy author (with some works of historical fiction and contemporary fiction) under the noms de plume Andre Norton, Andrew North and Allen Weston. Norton published her first novel in 1934, and was the first woman to receive the Gandalf Grand Master Award from the World Science Fiction Society in 1977, and won the Damon Knight Memorial Grand Master Award from the Science Fiction and Fantasy Writers of America (SFWA) association in 1983.
Andre Norton. Wikipedia.