Boom!
The thunderstorm cloud spat out more lightning.
Seeing this, Ye Xuan could not help but narrow his eyes.
Right below the thunderstorm cloud, there was a pool.
Rather than calling it a pool, it was more like a lake.
However, unlike an ordinary lake, the surface of the lake was crackling with heavenly lightning.
The lightning bolts that fell from the thunderstorm cloud all landed in this lake.
This was the Heavenly Lightning Pool.
Boom!
The flashes of lightning, and rumble of thunder, was unceasing. Low-level cultivators would probably suffer injuries from the sound of thunder alone.
The faces of Zhao Yuyan, Yue, and Huang Ling paled!
This was not ordinary lightning. These lightning bolts contained the power to injure a core formation stage expert.
If all of the lightning contained within the thunderstorm cloud were to erupt at once, even a unity realm expert might not be able to survive.