The fact that the Blood King possessed Ancestor God's Blood had originally been the Blood King's secret.
Because Yi Yun was from the Tianyuan Realm and had heard Jiang Xiaorou recount the Blood King's rise, he inferred that the Blood King might possess Ancestor God's Blood.
The Ruins Emperor probably did not know this secret.
However, when Yi Yun's pill emerged from the furnace, it had caused a phenomenon in which the bloodlines of humans, demons, and gods had merged into one. Although it had lasted only a few breaths,
the Ruins Emperor had probably already discerned something from those few breaths of the phenomenon. He had likely seen Ancestor God's Blood before, and that was how he sensed the aura of the Ancestor God within the phenomenon!
The Ruins Emperor had seen through it. The two Ancestors should have seen through it as well!
Refining pills with Ancestor God's Blood was absolutely intolerable to the God Race. To the God Race, the Ancestor God was like the Heavenly Demon Ancestor to the Demon Race.
If Yi Yun refined pills using the demon cores of the two Ancestors from the Ruins Emperor Palace, and the Heavenly Demon Ancient Clan found out, what would happen then?
The mere leak of this matter would be enough to bring the God Race's full-scale pursuit down upon Yi Yun!
And the Blood King could not possibly protect Yi Yun.
This was the Ruins Emperor's bargaining chip. His earlier mention of Jiang Yu Chan and the rest had merely been casual; this was the true trump card.
Yi Yun understood. At the end of the day, what the Ruins Emperor wanted was the formula for the Myriad Manifestations Asura Pill!
For a pill that could greatly benefit the Demon Race, naturally, the wisest course was