The Great Calamity

Spirit Vein Tuning Art, a side-path technique for organizing and evolving spirit veins, was classified as an array formation.

The transformation undergone by the Red Mountain spirit vein could also be understood as Spirit Vein Tuning Art. This was likewise the foundation upon which the Spirit Law Household established itself.

Over a thousand years, Red Mountain had evolved from a minor eighth-grade spirit vein ranked below the eighteenth tier into the minor first-grade spirit vein it was today. This was precisely due to Spirit Vein Tuning Art.

Moreover, the flesh-and-blood structure had not merely been tuned. It had been used to construct an array formation engraved upon the earth itself.

The nature of this array had already reached the fourth stage.

A forbidden array!

The first stage was a minor array. Its power was extremely low, but its defining feature was that it could move. The Mobile Blocking Barrier belonged to this type.

The second stage was a grand array, arranged across the earth with array flags. It could not move, but it could draw on the spiritual energy of heaven and earth, allowing the array caster to borrow the power of heaven and earth and explosively increase their battle strength.

The third stage was a killing array, a grand array purely designed to slay enemies, with its killing power specially enhanced. Such arrays generally used a supreme treasure as their array core. Once deployed, even cultivators of the same rank would find that the heavens would not answer their cries and the earth would not respond to their pleas. This was a killing array.

The fourth stage was the forbidden array. It used the spirit veins of the entire land as its array disk and an entire city as its array core. Once the array was formed, it became