It had been two hours. Blood Fairy could not find any solution. Lu Li had been sitting still on the ground while thinking about that critical point.
From reading the books on Inhibition Formations collected by Tian Lingzi, Lu Li had now had a general—if not proficient—understanding of Inhibition Formations.
Inhibition Formations had static ones and dynamic ones.
Static ones were pre-determined to function following a certain pattern. The Inhibition Formations to collect Xuan Energy, for example, could gather Xuan Energy continuously until the Inhibition Formations became invalid.
An Inhibition Formation of illusion would be triggered once some stepped in and would never change. Such a formation would operate based on the pre-arranged rules.
Dynamic Inhibition Formations were more flexible. Usually, there would be people operating such Inhibition Formations which could change and alternate at any time easily.