Urgency, Containment! (Seeking Subscription)

Wu Tao cultivated in the room Luo Datong had arranged for him.

In the Devil World, devil essence qi filled heaven and earth, while spiritual power was exceedingly scarce. If one wished to absorb the spiritual power between heaven and earth for cultivation, it would consume an enormous amount of mental energy.

However, the Cultivation Cities on the Boundary Wall Battlefield had been established by the Star Sea Cultivation World for over a million years. Since they were meant to station cultivators here long-term to resist the Devil World's devil race invasion, the issue of cultivation naturally had to be resolved.

Beneath the Cultivation Cities of the Three Great Immortal Palaces and Nine Great Immortal Sects lay a Fourth-Rank High-Grade Spirit Vein.

It was said that this Fourth-Rank High-Grade Spirit Vein had been excavated from the Star Sea Cultivation World by the Divine Monarchs of the Three Great Immortal Palaces working together. They had used grand formations to place it at the central point of twelve Cultivation Cities, then used various formations to draw upon it, allowing those twelve cities to provide cultivators with normal cultivation conditions.

"I heard that back then, the Star Sea Cultivation World had the Three Great Immortal Palaces and Ten Great Immortal Sects. The Boundless Immortal Sect was the strongest among the Ten Great Immortal Sects. For some reason, this sect threw in its lot with the Devil World's devil race on the Boundary Wall Battlefield. After evidence was found against it, the Three Great Immortal Palaces joined forces to wipe it out, then excavated the Boundless Immortal Sect's Fourth-Rank High-Grade Spirit Vein. That Fourth-Rank High-Grade Spirit Vein is the one beneath the twelve Cultivation Cities."

Wu Tao thought this as he sensed the spiritual power within the spirit-drawing formation. The spiritual power concentration within