Amberser had cast a High-Level Invisibility Spell before he boldly walked into the Peel Family territory.
Although the family had a long history, they had no means to break a High-Level Invisibility Spell.
Thus, passing through layers of guards unhindered, Amberser entered the mining area as if it was uninhabited land.
Towering furnaces spewed black smoke, and after the ores were selected, they were melted on-site into various metal ingots.
The Peel Family's mines were quite a special composite vein. Aside from the iron and copper ores that were mixed together, there were many other miscellaneous metals, as if several veins were forcibly combined, which did not appear to be naturally formed.
Such veins were very troublesome to mine. Different metals had different smelting methods. They needed to be sorted first, then melted and separated at different furnace temperatures.
The more mixed the metals were, the more troublesome it was to separate them.
