Nether Abyss Valley, Three Traits Turn Blue

Having sorted through the data, Li Yuan should have returned, yet he did not set off immediately.

His eight-hundred-zhang perception continued spreading outward. He had already mapped the surface of the rift cluster, but the underground remained hazy. The depths indicated by the Spatial Sensing Formation happened to still lie within his range of investigation.

Li Yuan shifted the focus of his perception downward, passing through the surface rock layers and probing deeper.

At one hundred zhang, the rock layer was dense, with nothing unusual.

At one hundred and fifty zhang, scattered remnants of spatial fluctuations appeared within the rock.

At two hundred zhang, the anomaly suddenly intensified.

Several rifts extended downward from different angles. Rather than vanishing after passing through the rock layers, they converged at a single point below two hundred zhang.

Further down, the Spatial Investigation Technique sensed an enormous hollow.

It was not a natural cave. The edges of the hollow bore clear traces of artificial intervention, and the residual spiritual power was exceedingly ancient.

Li Yuan compared it against the Earth Vein direction of the Old Demonic Abyss Site. The two aligned, so they were most likely connected underground.

He locked onto the widest rift in the cluster and activated the Spatial Severing Technique, following the crack downward and widening the passage until it could accommodate one person.

Spiritual light protected his body as he descended vertically along the fissure.

One hundred zhang, two hundred zhang, three hundred zhang.

The rock walls gradually changed from grayish brown to deep black, while the demonic qi in the air grew ever denser. The Dark Abyss Demonic Origin Art automatically accelerated, drawing the demonic qi flooding into his body into its circulation.

At three hundred zhang, the fissure suddenly opened up.

Li Yuan's footing vanished beneath him, leaving