Being stared at by Ma Youfu, Liu Shixuan and the two others all revealed a wary expression.
In terms of strength, none of them was weaker than Ma Youfu, but the issue was that this guy was a madman.
Would any sane person pick a fight with a madman?
Fighting with Ma Youfu was very likely going to result in mutual destruction.
Thankfully, Ma Youfu didn't make a move. He wanted to avenge his younger brother, and since Liu Shixuan and the others were just fighting him, it was clear they couldn't have used some Clone Technique to kill his brother.
He checked his brother's body and found multiple wounds, most of which were sustained in battle, while others were due to falls.
He immediately imagined the scene: his brother in fierce combat, yet blasted out of the vortex, falling to his death at the bottom of the lake.
As such, the murderer was highly likely still in the lake and hadn't left.
He held his brother's body and stood guard at the entrance of the passageway.