Central Vein Stabilization

Dark Vein Abyss Zone, three-way fork.

Li Yuan stood at the junction where the main passage split into three branches, his eighteen-hundred-zhang passive perception spreading toward the thickest northeastern branch.

The northeastern branch of Ling Province was about half a zhang wide, carrying the greatest flow of demonic qi. The Ancient Demon Dao Spirit Patterns on its walls were also the most complete. Demonic qi surged northeast along the passage, pointing straight toward the Old Demonic Abyss Site.

Li Yuan stepped into the northeastern branch of Ling Province and advanced swiftly along the passage.

The branch was much narrower than the main passage, yet the demonic qi flowed even faster, its rushing roar echoing low through the tunnel. The deeper he went, the denser the demonic qi became. The Ancient Demon Dao Spirit Patterns on the walls layered over one another, their spiraling compression structures thick and distinct.

Three hundred zhang, four hundred zhang.

At around five hundred zhang deep, the branch suddenly widened.

Ahead lay a natural underground space, roughly sixty zhang across, with an exceptionally high ceiling. The rock walls had been dissolved away, their edges smooth and rounded, while the ground rose and fell unevenly. It was clearly not artificially excavated.

There was more than demonic qi here.

On the western side of the underground space, several natural Earth Veins protruded from deep within the rock strata. Pale cyan spiritual qi slowly seeped from their ends, meeting the dark-purple demonic qi pouring from the eastern Dark Vein in the center.

The two forces collided in midair.

The spiritual qi and demonic qi within the area permeated one another. They neither fully merged nor completely repelled each other, maintaining a strange balance.

Li Yuan stopped at the entrance and took out the Jade Slip Zhou Heng had passed