In the literary realm the term “mercury” sometimes transcends its scientific or mythological associations to evoke a distinctive, liquid metallic hue—a cool, silvery glow that seems to capture both transience and transformation. Although most references to mercury tend to be technical or emblematic of the messenger god’s mutable character, a few writers have harnessed its chromatic qualities to great poetic effect. For instance, the evocative image of a “mercury vapour light” creates an otherworldly, ghostly gleam that not only illuminates a scene but also hints at an elusive, shifting beauty [1]. This selective use of mercury as a color underscores its capacity to merge the precise with the poetic, lending a tangible shimmer to abstract moods and ephemeral moments.