Outside the battlefield raged, Lin Rui had already extracted all the essence of blood and qi within the prison before him.
He changed the mudra with both hands this time, manifesting a white jade seal about the size of two palms behind him.
Below the jade seal, the eight ancient seal characters "Mandated by Heaven, the nation prospers and the people are at peace" were boldly etched, precisely the Imperial Jade Seal temporarily under Lin Rui's control!
With the appearance of this seal, Lin Rui's speed in purifying and extracting these essences of blood and qi significantly increased, nearly doubling.
Meanwhile, Lin Rui also allocated some of his focus to observe the battle outside the fortress.
Erosion Sky Venerable is a strong practitioner at the 'Extreme Longevity' level, indeed one of the most capable aides among the Lord of Darkness's henchmen.
