Clear frost-blue glass you can see straight through, a cold cornflower body that deepens where the facets stack and the light bends. Bright silver numerals sit against the glass, catching the light while the body stays translucent around them, so you read the near face and the far side of the die at once. Real see-through crystal, not a frosted coat over something solid. The full polyhedral set, plus a d2 and a d16, every one cut clear. Cold and clean in the hand, like a held breath of winter air.

Frost crystal is drawn from still meltwater that froze through in a single night, so quiet it never clouded, grown in the deep cold where nothing stirs to spoil it. Cutters work it only in the hard months, when the air bites enough to keep an edge sharp and the body clear; let it warm too fast and the glass fogs for good. Frost-walkers and winter-born casters favor it for the way light passes clean through, carrying nothing but the cold. Each die is faceted by hand before the thaw can reach it.

1 sets containing 9 dice