"But how did they..." Beiting Lin was about to ask how they managed to advance to Heaven Rank when he suddenly thought of the Divine Realm medicinal pills. Could it be that they contained a large amount of demonic energy? Where did this demonic energy come from?
Considering Yan Ye also had another identity, as a member of the Dark Demon Palace, could it be that the demonic energy came from Yan Ye?
What Beiting Lin considered, the other three Venerables also thought of. But having lived for over a hundred years, they wouldn't ask such questions out loud if Yan Ye didn't bring them up.
