"No wonder the old man placed such a strong seal on the ancient painting. Without cultivation at the Aerial Mastery Stage, one wouldn't even qualify to discover the barrier."
Ning Fan sighed but hesitated to jump into the vortex.
It couldn't be helped. The scene presented by the barrier looked too sinister, even somewhat disgusting.
If it wasn't the imagined entrance to the Ancient Sky City, it would be a complete disaster.
At this moment, the spinning speed of the shadow vortex began to slow down, and its dark, ink-like color gradually faded.
"Not good. The barrier is about to disappear."
Ning Fan realized instantly that the appearance of the barrier was likely related to the angle of the light.
But this was just a guess after all. "Who knows when it will appear next?"
Worried about the old man's safety, Ning Fan steeled himself and jumped in directly.
