TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
PROBLEM: Category: "FALL" 
Clue: This Poe tale appropriately begins in the fall, on a "dull, dark and soundless day"

SOLUTION: "the fall of the house of usher"

PROBLEM: Category: BOOK & AUTHOR 
Clue: Lt. Joe Leaphorn & Navajo policeman Jim Chee return in this author's 1996 mystery "The Fallen Man"

SOLUTION: tony hillerman

PROBLEM: Category: IMAGINARY RACES 
Clue: Hesiod mentions 3 of these fearsome creatures: Stheno, Euryale & Medusa

SOLUTION:
gorgons