Chapter 612
As a matter of fact.
This Blood Stone was a Blood Demon Stone created by Ye Yu; within the stone, there laid a formation of the Ghost Race.
The actual purpose of this Blood Stone was to mark the souls of many.
Without anyone realizing, the formation within the Blood Stone absorbed a thread of everyone's soul. As to why Ye Yu had absorbed so many souls, Qinchuan now had some idea.
Although the Ghost Race formation was strong, Qinchuan's strongest attribute was his soul, and the formation had made a mistake targeting it. A thread of Emperor Soul had just entered the Blood Stone, taking control of the formation within.
That was why he could easily control whether or not Ji Huo'er and the others reacted when they infused mana.
As for the different colors the Blood Stone showed when absorbing mana, it wasn't too closely related to inheriting imperial fortunes, but it was related to the physique of the physical body.