Duskmourn is a more modern-looking world that features electronics such as television sets, mechanical devices like chainsaws, and 80's-style fashion like sneakers. The entire story of Duskmourn unfolds within a giant, endless haunted mansion filled with horrors. This house is no ordinary building; it is a living, plane-spanning entity that thrives on the fear of its inhabitants. The rooms are in a constant state of flux. At times, there seem to be outside environments, but there is always a door or window leading to the next room. Moths, which symbolize Valgavoth, appear everywhere.