Carrying a bellyful of doubts, Ling Feng strode swiftly toward the vicinity of the Pill Furnace.
Feeling the terrifying aura of flames around Ling Feng, the spiders lying on the ground immediately shrank back into the dark corners, not daring to make any rash moves.
Ling Feng looked up and saw that there seemed to be an air hole above, casting a beam of light that was precisely aimed at the top of the Pill Furnace.
Then, Ling Feng squatted down and studied the Array below, finally gaining some insights.
It turned out that the Pill Furnace was actually using the Array as a medium to connect heaven and earth, drawing the essence of the sun and moon from above, while below it connected to the Earth Veins, using the spiritual energy of both to continuously drive the Array, condensing a very faint "Void Spiritual Fire" for the purpose of Alchemy.
