In "The Masque of the Red Death" describe the black room.

The last, most fantastic room is black with red trim on
its window. These colors suggest the fusion of human blood and the darkness of death.
The black room contains the large ebony clock, which is imposing in appearance and
confounding in its hourly tolling. The guests are disconcerted, pale, confused, and
tremulous at these sepulchral sounds (paragraphs 5, 7, and 8). The eerie black light
together with the dull sound is suffcient to explain the effect of uneasiness. This room
is on the most western side and symbolizes death or the end of
life.