According to Dong Li, her black tortoise had showed her to that demonic stone in the Dark Forest.

The demonic stone contained the profound mysteries of dark power. Like what humans referred to as Heavenly Talismans, it seemed to have formed naturally.

As for why it came to form in the Sixth Demon Realm, Dong Li had no idea either.

Given her current understanding of dark power, she couldn’t derive the profound knowledge of dark power from the stone by herself.

It was ...