The force in her body was forcibly stored using a special method. Although she had quite a bit of force, it would ultimately run out. She couldn't convert the Heaven and Earth Force into her own, and there was no telling how long they would stay in the Mystic Forest.
Just when she was fretting about this matter, the distant dark clouds started rolling in over them, and the clear and blue sky darkened in no time. From a distance, it looked like a drop of thick black ink spreading across an azure-blue painting.
Roar!
An alarming roar suddenly resounded through the mountains, striking fear in them.
"What was that?" asked Shangguan Wan upon sensing a dangerous aura.
Mu Qinghe took a look in the direction the roar came from. "I think a high-grade fiend is about to break through!"
"To be able to trigger such a phenomenon… Could it be a ninth-grade fiend?"
