Answer:
I don't understand your question
The metaphor is the literary devices that compares two unrelated thing using implied language, the comparison does not use the words “like” or “as” to compare instead the similitude between the object is implicit, when Bart Edelman says “petroleum morgue” we get the picture of dark morgue like petroleum. The answer is metaphor.
I think the impatient because it encourages you to continue reading his or her story.