C1606 Fire spirit vein!
Evidently, Feng Yan's intention to ask such a question was very simple, because the pill furnace that Chu Chen had previously selected from the Valley of Wind and Thunder could be said to be an existence equivalent to scrap iron in the eyes of Feng Yan;
Naturally, in such a situation, for Feng Yan, if Chu Chen really needed to concoct pills, he would need an even better furnace to concoct pills