The Black-and-White Whirlpool forcefully sucked, and despite the origin forcefully struggling, it was directly absorbed into the whirlpool and assimilated.
After the swallowing absorbed the Thunder Dao origin, the Black-and-White Millstone glowed much stronger than before, and a thunder symbol even appeared on it. This thunder symbol was like a chaotic thunderbolt that had ten types of colours.
Ten types of colours?
Hints of shock appeared in Qingfeng's eyes.
Qingfeng clearly remembered that the Thunder Immortal Chant he trained only had nine colours, but now ten types of thunderbolts appeared before him. It was definitely extremely powerful, and horrific.
Qingfeng's Thunder Immortal Sword slightly trembled, as that was definitely an ancient existence, and the most original source of Thunder Dao energy.
Hints of desire appeared in Qingfeng's eyes, but he immediately pressed it down.