Three days later.
An army with battle intent soaring to the heavens halted outside the Dragon Demon Palace's stronghold. At the very front of the army, eight imposing figures floated in midair.
Three days earlier, the Northern Heavens Spiritual Academy had suddenly mobilized its entire army and swept in from the outskirts of the Dragon Demon Palace. Led by one Earthly Sovereign and six Sovereign experts, the Northern Heavens army had advanced with unstoppable momentum, smashing through the Dragon Demon Palace's outer defenses and heading straight for its headquarters.
In the beginning, the upper echelons of the Dragon Demon Palace had assumed this was merely another routine clash with the Northern Heavens Spiritual Academy and had not paid it much attention. By the time they fully realized what was happening, the Northern Heavens army had already reached the gates of their headquarters.
After learning that the Northern Nether Dragon Kun, the guardian divine beast of the Northern Heavens Spiritual Academy, had stepped into the Earthly Sovereign realm, the Dragon Demon Palace's upper ranks decisively shut their gates and refused to emerge, relying on the Ancient Spiritual Array surrounding their headquarters to hold their ground.
This Ancient Spiritual Array could withstand the full-force strike of an Earthly Sovereign. The Northern Nether Dragon Kun had only just entered the Earthly Sovereign realm, so whether he could break this Ancient Spiritual Array was still uncertain.
As long as they defended their headquarters, the Dragon Demon Palace would still have a chance to turn things around.
The Dragon Demon Palace's headquarters was an ancient palace buried deep underground. At this moment, the Ancient Spiritual Array on the surface flashed rapidly with spiritual light. The array was extraordinarily powerful, requiring five Sovereign experts to exert themselves fully just to activate it.
Beneath the dim underground,