That was a large oil painting dominated by black and red hues, hanging on the wall closest to the spiral staircase.
Like most of the paintings in this "mansion," it was blurry and chaotic, its surface covered with rough and eerie lines and color blocks, making the viewer feel dizzy and unable to discern any meaningful content, as if a lunatic had scribbled uncontrollably during a hallucination.
However, when Duncan's gaze lingered on the canvas, staring at it for a long time, he suddenly realized that something in those dark and chaotic blotches seemed to be slowly changing—lines were emerging from the shadows, and amidst the jumbled colors, shapes gradually became distinguishable.