Actually, just now Helian Tiehua mentioned the situation where the Young Master on this side was killed and they didn't hear a single sound. That was because their voices were soundproofed by these four servants, so they heard nothing.
However, although Helian Tiehua and the others heard nothing, it doesn't mean these four servants didn't hear any sound. Although they soundproofed the main building, they could still hear the movements around them and were constantly watching Ye Qing's situation.
Yet, as Helian Tiehua said, throughout the process, there was not the slightest movement from Ye Qing's side; they didn't hear the Young Master calling for help. In other words, when the Young Master died, he didn't even have time to call for help and was killed directly.
This situation made them more certain that the one who killed the Young Master must be extremely powerful, definitely done by someone beyond a peerless master.
