Despite his rage, Duan Gantai couldn't afford to leave Ning Cheng behind at this point unless he, too, didn't care about the treasures here anymore.
"Heh, Brother Duan and I are thinking the same thing. I also suspect that the Hengyuan Pill Pool of the Su Clan is in the front yard," Ning Cheng chuckled and swept his Divine Sense outwards. Soon, he found a defensive formation in the front yard that was different from the surroundings.
It was normal for the Su Clan's large courtyard to have defensive formations, but an abnormal one like this could still be discerned by Ning Cheng's level of formation expertise. Had Duan Gantai not reminded him, Ning Cheng might not have thought of it at all. Now that Duan Gantai had mentioned it, Ning Cheng directly summoned his long spear and smashed it down onto the concealed defensive formation.