C694 The History of Alchemy(part I)

Speaking of which, Wen Yuan didn't know how to concoct pills. However, after studying for the past few days, he found out that Ji Teng did not lie to him. If this book of knowledge about alchemy was spread out, it would definitely cause a storm of blood, both in the open and in the dark.

Because the contents of this book were really too valuable. As long as it was a power that knew what was good