Just the surge of aura from an altar was enough to make Qin Fengming and Yu Chen feel fear. It sounded almost unreal.
The two of them were certainly not afraid that the altar could absorb Heaven and Earth Origin Energy. Rather, they had both thought of a possibility: this altar might be connected to some powerful mechanism.
Profound Ghost Saint Ancestor had spent countless efforts and resources arranging this place. It was impossible for it to be guarded only by the mechanism beetles on the outskirts. There had to be even more terrifying and powerful arrangements hidden within.
Neither of them knew exactly what it was. Precisely because they did not know, the chill crawling up their backs grew stronger.
Watching the aura surge and converge above the altar, blue light flickered in Qin Fengming's eyes. He circulated his cultivation art and prepared to respond in an instant.
The altar was only several zhang tall. As the Vital Energy and Power gathered around it, it suddenly changed.
Those hard stones, resembling cyan iron, seemed to come alive. They actually began to stir slowly. The movement was slight, but under Qin Fengming and Yu Chen's gazes, they sensed it at once.
The speed at which the Vital Energy and Power gathered gradually increased. Before the time it took to finish a cup of tea had passed, the surroundings suddenly resounded with howling wind. The humming lingering above the altar also grew louder and more immense.
"This... could this be..."
Suddenly, Yu Chen cried out in alarm, his face filled with terror and disbelief.
"Fellow Daoist Yu, did you think of something? Please tell me frankly." Seeing Yu Chen's expression and his faltering words, Qin Fengming's mind tightened as he hurriedly asked.
In an instant, Yu Chen's expression became dull again,