The two elders looked at each other and saw a trace of shock in each other's eyes. This transparent cage was made of energy, and the energy was very dense. There was no excess energy leaking out, so they only felt a faint energy fluctuation and didn't notice the existence of the cage.
They weren't ordinary cultivators, but rather, they were condensing spirit realm experts. Their mental strength was much stronger than ordinary cultivators, but they couldn't sense the existence of the cage. This was enough to show that the cage wasn't simple.
The two of them couldn't help but use more force to hold the cage. They wanted to see how hard the cage was. 10%, the cage was fine. 20%, it was still fine. 30%, it was fine. 40%, it was fine. 50%, it was fine. 60%. They felt the energy in their hands disappear, but the cage didn't disappear. Only the energy in the piece they were holding disappeared. This made their expressions change.
