"Marshal has underestimated the Eighteen Tribes’ thousand years of witchcraft," Chen Qing Xu said. "In the lost witchcraft, there are even vivid and detailed records of turning dead people into an animated corpse, let alone using living beings for refinement.

“They think if a person... or perhaps a ‘Bone of Impurity’, was refined in this way, from childhood, he would have infinite strength or extraordinary wisdom far different from ordinary people, because ‘he’ is actually two people, with ‘four feet and two heads’, he can invite the power of evil gods.”

Gu Yun hesitated and said, "Forgive me for being ignorant of this...matter. Miss Chen, I think this all sounds like a ridiculous story passed among those uncivilized fools.”

Chen Qing Xu said: "With our inherent knowledge and understanding, the Marquis can regard Bone of Impurity as a kind of poison that destroys one's mental state. Some mad men are indeed more powerful than ordinary people and often think differently from ordinary people. When they have not yet lost all their sense completely, it is not strange for them to have unusual intelligence.”

Gu Yun: "...There are still things we can't understand with our innate knowledge."

Chen Qing Xu said, "Marshal, to tell you the truth, I sneaked into Eighteen Tribes to research their witchcraft, not only for your ears and eyes, but also for tracing back the origin of Bone of Impurity.

“But there are very few records about it from the Man people. There is only one tale about an ancient barbarian general, whose name was ‘Wu Er Gu’. This man was cruel and bloodthirsty, but he had won hundreds of battles, single-handedly creating the foundation of the united Eighteen Tribes we see now. He lived until 32 years old, had never married in his life, the reason was because he was neither dead nor alive, neither man nor woman.”

Gu Yun felt goosebumps raise up.

Chen Qing Xu: "I had checked the records of birth, death, and origin of this person and learned that his mother had given birth to twins, one boy and one girl, but afterwards, there was no record of the female baby, nor was there any record that she was dead... there are only two explanations: one is that after their family was defeated, the girl was lost, the other was…”

The pair of boy and girl twins were made into Bone of Impurity, the dead and the living were merged into one, male and female lived together in the same body. This was ‘neither dead nor alive, neither man nor woman’.

Gu Yun pressed his hand under his ribs tightly, Chen Qing Xu asked nervously, "Marquis, did the steel plate come loose?"

Gu Yun bent down and took a breath after a while. He whispered: "Why would anyone do such a thing?"