บท 820: The Scum Is Lame 

South Region. 

"Hmm… not this one." Cheng Sheng muttered and threw one of the spirit servants which he attacked using a Lightning Talisman to render them unable to move and he could inspect their spirit bodies to further his investigation about the strange spiritual energy of the enemies which, he could guess, is fatal to them cultivators. "Xiao Ling, you come out." He called his sword spirit. 

"Yes, master." Xiao Ling answered as he turned to his human form. 

"Find me the strongest one, which has that strange aura with it." Cheng Sheng spoke and pointed to the spirit servants lying on the ground, comatose. "Its master definitely is strong," he said and grinned.