By Frandar Hunding In the clay smelter you shall build a charcoal fire, of a heat to blacken teeth. You shall add a layer of iron-sand upon the charcoal. After six yarbans you shall add a layer of charcoal atop the iron. You shall repeat this process, layering iron-sand over charcoal, for three days. After cooling, you shall separate the low-carbon steel from the high-carbon steel. You shall use the low-carbon steel to form the core of the sword. You shall use the high-carbon steel to form the skin of the sword. You shall sharpen the sword-skin until it may shave an egg without breaking it.