"Well, the land seemed quite big enough for all to share, until black iron came over the water."
Black iron does that in a way, but you have to be close to feel it.
Why couldn't you find that black iron or whatever it was?
But this business with black iron and machines is wrong.
He could hope that the black iron and stone would protect them.
Most black iron is not so strong as when it was forged.
You cannot continue to hold chaos at bay with black iron.
He came up grinning, holding a long, black iron bar.
There has to be a certain concentration of the black iron for it to throw off white fire.
Making a musket by hand out of black iron took too much time and effort.