A near-black opal body with rainbow fire moving just under the surface, flashing blue and green and rose as the die turns against the dark. Crisp white numerals hold steady against the void-black field. The full polyhedral set, plus a d2 and a d16, every one cut from the same dark seam. Quiet until it catches the light, then it burns in every color at once.

Black opal like this is cut only from seams that never see the sun, where the dark itself is what lets the fire show. Cutters work by lamplight alone. True daylight is said to wash the color out for good. Night-hunters and deep-delvers carry it for the same reason: a light that reveals itself only when everything else has gone dark. Each die is polished slow, so the black stays true and the fire stays loud.

1 sets containing 9 dice