A thick glass lens rimmed in obsidian casing, Terrin'ukia's Monocle is tinted with a sanguine hue, enabling the wearer to see all hidden exits in a room without using the "secrets" ability in Vision. A silk braid extends from one side of the casing, attached to a burnished bronze clasp. The catch mechanism is furnished to represent the Spider Queen, Lachesis: half-spider and half-woman.