Spatial Teleportation Arrays are founded upon spatial nodes. In the Eastern Continent, there are three thousand stable large-scale spatial nodes, upon which the Wu Clan established three thousand Heavenly-grade Spatial Teleportation Arrays.
Beneath the Heavenly-grade Spatial Teleportation Arrays, there are Earth-grade, Xuan-grade, and Huang-grade Spatial Teleportation Arrays, though neither their transmission distance nor their efficiency can compare to the Heavenly-grade ones, nor are they guarded by the Will of Heaven and Earth.
Ever since the Wu Clan created the three thousand Heavenly-grade Spatial Teleportation Arrays and reaped a massive amount of merit, many other clans began to imitate them.
Chapter 39