Above the Grand Void Mountain Range, the Shadowless Formation stretched across the sky.
Countless Human cultivators, along with innumerable peerless prodigies and outstanding talents, continuously reinforced the grand formation, doing everything in their power to withstand the attacks of the Demon and Divine Races.
Beyond the mountain range, countless billions of demon beasts relentlessly battered the formation, while boundless tribulation aura flooded the vast void.
By this point in the battle, countless low-level demon beasts had already been reduced to ashes. Even many demon immortals and divine spirits of the Ascension Immortal realm were no more than insignificant motes of dust amid this calamity.
Their minds had been eroded by the tribulation aura filling the heavens, and their souls were no longer under control. They continuously crashed against the formation without stirring even the slightest ripple. Their only use was to deplete the immortal spiritual qi, spirit stones, and immortal sources within the Grand Void Mountain Range.
Beneath the killing formation formed from the twenty-four innate treasures of the Grand Void Mountain Range, even half-step Celestial Immortals would be reduced to ashes if they forced their way through.
This assault continued for several thousand years. The killing had made the enormous Grand Void Mountain Range boil with Killing Intent, and no one knew how many demon immortals and divine spirits had fallen. Yet there was still no sign that the Grand Void Mountain Range would be breached.
Until this day, when the Azure Yang Imperial Son arrived with the Divine Race. Looking at the Grand Void Mountain Range before him, he frowned slightly.
After observing it for a long while, he said, "The Grand Void Grotto-Heaven possesses no ordinary foundation. Using the All-Heavens Array Diagram as its foundation, they have set up the Twenty-Four Heavens Grand Formation within the Grand