But before he could do anything, he felt the ground trembling and it became more intense and he was forced to stop and step out of the cell.
"What just happened? It can cause the ground in this prison to tremble, are there 13th level combat level experts exchanging moves?" He instantly rejected this thought. On the third floor, it was impossible to have such a level of expertise, and perhaps even if they were involved, their combat power would be something shocking. It would not just be a matter of the ground shaking massive damage might be caused.