Working Late, Burning the __ Oil
This page is the CodyCross answer for the clue below from House of Horrors, Group 1113, Puzzle 1 (Disembodied Voice).
Question is: Working Late, Burning the __ Oil
and the answer is: MIDNIGHT
Word Meaning:
MIDNIGHT — The middle of the night: the sixth temporal hour, equidistant between sunset and sunrise.
Definitions from Wiktionary.