The old monster of the Returning Void Realm who occupied the cave mansion would only open the furnace once a day. Now that the "human material" had been taken away, it meant that for the next two hours, he would focus solely on Alchemy, paying no attention to the happenings in the cave mansion.
Hao Shang thought this as he quickly walked over to a young man with white hair in the pharmacy.
"It's time to start." He whispered into the young man's ear.
The young man seemed unable to see. Upon hearing Hao Shang's words, he silently nodded, took out a small knife from his sleeve, and cut open the palm of his right hand.
Bright red blood immediately oozed from the wound, and soon after, a thumb-sized Gu Worm timidly emerged.
"The Soul-devouring Worm needs at least an hour to create a breach in the formation; we must hurry..." The young man's words were abruptly cut off by a loud noise.