Deep within the Heavenly Tomb, Xiao Ze held a crystal sphere in his hand.
Spatial force permeated the surface of the sphere. As Xiao Ze continued his meticulous construction, the space contained within it grew increasingly stable. He had no intention of expanding the sphere any further; he was not creating this space as a residence for his clansmen, but rather as a private sanctuary for his own cultivation. Consequently, vast size was unnecessary.
His primary requirement for this space was stability, enough to withstand the weight of immense soul power. His secondary requirement was the ability to seal that soul power, preventing any leakage.
Chapter 440