Ellick was a special case within the Eternal Night Council. He was constantly conducting insane experiments, and the results of some even threatened the other councilors.
Ellick was so mad that he had even used two Lower Members of the Eternal Night Council for human experiments.
As a result, Ellick was excluded from the Upper Council.
However, Ellick had managed to retain a certain status because someone was protecting him.
It was said that his experiments could provide the Chairman and Vice-Chairman with valuable information and experimental evidence.
Therefore, the Blood Crystal Stone left in Ellick's brain after his death was likely a crystallization resulting from his communication with that foul language, and it did not represent the majority of the Upper Council members.
Fang Zhen didn't know if this answer counted as completing his mission objective, but it was, at least for now, the most in-depth answer he could obtain.
