The standoff between the Kunpeng Demon Emperor and the Northern Dark Immortal Emperor lasted only an instant. The moment their two boundless auras collided, a fierce battle that shook heaven and earth erupted.
The once relatively calm surface of the Northern Nether Sea suddenly surged with terrifying waves. Hundreds of millions of water columns shot skyward, then converged into towering water walls a hundred thousand feet high, blotting out the sun like a watery rampart spanning heaven and earth. Laden with terrifying energy capable of destroying the world, they bore down on the Northern Nether Immortal Island with the crushing force of thunder.
The Northern Dark Immortal Emperor stood above the Northern Nether Immortal Palace, his imperial robes snapping in the gale. As he gazed at the water wall blotting out the sky, his eyes remained as resolute as steel.
He slowly raised a hand, a dazzling ray of immortal light gathering at his fingertips, and shouted in a deep voice:
"Northern Nether Mystic Ice, freeze the four seas!"
As his words fell, the immortal light abruptly spread, and the temperature of the entire Northern Nether Sea plummeted. The seawater near the island froze at a speed visible to the naked eye. An ice wall spanning heaven and earth rose into the sky and crashed into the hundred-thousand-foot water wall.
Boom!
The thunderous crash shook the nine heavens. The collision of ice and water unleashed endless shock waves of energy that swept across the entire sea region.
Countless Low-Tier Sea Monsters were instantly ground to dust beneath that power. Even Liu Changxu and the others within the grand formation felt their blood churn from the aftershocks and had to circulate their immortal power at full strength to withstand them.
In the sky, the Kunpeng Demon Emperor's immense figure blotted out