These were scrolls made from Beast skin and could be preserved for a very long time.
A map had been drawn on the Beast skin. It showed one precise location and nothing else.
Lu Yin showed the map to Yu Chen.
"This should be where they're extracting Star Source Liquid from the mother tree," Yu Chen said.
"Extracting Star Source Liquid? Is the Cold Immortal Sect doing that now?" Mist Ancestor said furiously.
Yu Chen nodded. "It should be this location."
Mist Ancestor was enraged. "Those beasts are actually targeting the mother tree! The mother tree is the barrier protecting humanity. If anything happens to it, humanity is finished. No matter how many Progenitors we have, it won't matter. Senior Lu Tianyi despised the extraction of Star Source Liquid. He strictly forbade anyone from doing such a thing in the Fifth Continent, and even clashed with the Sixth Continent over it. I can't believe that now that the Lu family is gone, those beasts are extracting Star Source Liquid themselves."
Lu Yin said gravely, "All four ruling powers are doing it. I even uncovered one of their operations before."
Mist Ancestor clenched her teeth. "I'll make them pay for this."
Lu Yin put the Beast skin away and took a few steps. Then he picked up another scroll and glanced at it before turning to Yu Chen. "There was once a behemoth in the Zhongping Realm called Zhongyuan?"
Yu Chen nodded. "Zhongyuan was formed by several Rogue Cultivators. Its founder was a Progenitor-level Rogue Cultivator who completed the Beyond Heaven trials at my Cold Immortal Sect. He was the one who founded Zhongyuan."
Lu Yin set down the scroll. Zhongyuan had been wiped out overnight, and its Progenitor-level founder had vanished without a trace. No one knew what had happened.