The consort has stopped digging. Below it has excavated quite a sizable space, and Xu Xin finds that what lies beneath his feet is all black coal!
"So much! This is just too much!"
The cave is filled with coal fragments that the consort has shattered while digging. Xu Xin quickly gathers them up.
[Obtained coal*367]
Goodness, how long has it been digging to extract this much!
Xu Xin takes out his iron pickaxe and swings it down. "Crack," the ground breaks apart, scattering several pieces of coal.
This is steady; the coal output is plentiful. With this coal mine, he can produce steel fire!
One steel fire requires 25 pieces of coal and 1kg of mutant vine sap. He initially thought the material consumption was high and might not be mass-producible. But he didn't expect the coal output to be ridiculously abundant!
Moreover, he doesn't need to do anything himself. The consort only has to dig casually for half a minute to yield several hundred to a thousand pieces of coal!