The black substance was like hardened rock but with a glistening surface. It formed shapes like walls, protecting Zhang Haoran and the altar. The moment it took a direct hit from the Pillar of Heaven's Judgement—
Dong! Rumble!
A loud sound, like metal being struck, resounded as the entire area trembled under the impact. The ground beneath the defensive wall was pushed back by the force of the strike, the black wall trembled heavily, but, amazingly, it was not destroyed.
Aldrian, watching this, raised his eyebrows. The defensive wall still held even after taking a direct hit from his full-powered Pillar of Heaven's Judgement was truly surprising, but not unexpected. He knew Zhang Haoran might possess methods unknown to him.
Zhang Haoran held knowledge of the higher heavens, after all, and must have many tricks to block attacks like this.