The Main Culprit

Zhu Ming slowly got to his feet in a daze. Suddenly, he recalled something and looked anxiously into the array. "Mother Feng… Mother…" The figure in the array was gone and so was the grievous energy.

"Well…" He ran into the array, panicked. "What exactly happened? How did Mother Feng suddenly disappear? Where did she go?"

Yi Qing frowned and stepped forward to scan the array. "This array isn't broken. I don't think she broke the array to escape."

"Then where did she go?" Zhu Ming asked anxiously. He conjured a few spells to locate Mother Feng's aura, but dropped his hands down in defeat after awhile. "I can't detect her aura and there's no sign of any other array in here."

"Could it be that she disappeared into thin air?" Bai Ze asked.

"No." Yi Qing shook his head. "I didn't feel any sorcery earlier."

All of them fell silent. The array wasn't broken and there was no sign of any other array in there. How did she disappear?