Pei Ling watched his own body walk up to the pill furnace in the alchemy room, deftly form hand seals, draw out Nine Netherworld Fire from the talisman, and ignite the furnace.
While the pill flame heated the furnace, the system began processing the ingredients.
First was Ghost River Cart.
Pei Ling had already experienced how formidable this material was yesterday. It could naturally attack the soul. However, its assault had no effect at all on the system. It was quickly dealt with and tossed into the furnace.
Next came Cold Iron Grass. As its name suggested, the entire plant looked like a clump of cold iron wires, with none of the appearance of a plant at all.
It needed to be gradually warmed with spiritual power before it would melt into liquid.
According to Yan Gu's explanation during class, processing Cold Iron Grass wasn't difficult in any other respect. The hard part was controlling spiritual power with precision.
That was also one of the system's strengths.
The next ingredient was Crocodile Scale Tiger Bone. This one was simple: all he had to do was find a way to grind it into powder.
The finer the powder, the better its medicinal properties could be brought out.
The system spared no effort, grinding that one liang of Crocodile Scale Tiger Bone over and over several times...
Pei Ling's spiritual power and physical strength were so depleted that he even felt short of breath.
Fortunately, the Red Sun Flower and Enlightenment Beast Blood only needed a little processing before they could go into the furnace. The other auxiliary ingredients weren't especially troublesome either.
Soon, the system had processed all the ingredients and officially began refining the pills.
Pei Ling watched coldly from the sidelines. The system had almost perfectly replicated Yan Gu's