"So Red Lotus died just like that?"
Lu Chenzhou heard that the Red Lotus Demon Venerable self-destructed, and felt a bit regretful—what a pity, he didn't get to swallow Red Lotus's soul.
But he still had the Black Mountain Demon Saint's soul, also of the Destruction Dao. Now that he was Seventh Realm, after stabilizing his realm he could attempt the devouring—should be enough to let Revolving enter the Fifth Rank.
His attainments in the Revolving Dao, Five Elements Dao, Wind and Thunder Dao, and Cold Ice Dao determined the power of his innate divine ability, [Nine Tribulation Lotus]. He was only Third Rank in Five Elements and Wind and Thunder Daos, and hadn't yet mastered Cold Ice Dao, so he'd need to figure out a way to train it up.
Devouring souls was the fastest route.
Five Elements and Wind and Thunder were all common Laws; those skilled in such paths at Sixth and Seventh Realm among the demon race were everywhere.