The Left Hand of __ About Ambisexual Gethenians
Puzzle 15 of Sci-fi Universe Medium Pack
Question is: The Left Hand of __ About Ambisexual Gethenians
and the answer is: DARKNESS
Word Meaning:
DARKNESS — (uncountable) The state of being dark; lack of light; the absolute or comparative absence of light.
Definitions from Wiktionary.