"Do not underestimate them."
Setting Sun Patriarch spoke, his expression rather surprised. "This formation carries quite a bit of the bearing of the Heaven-Opening Grand Formation."
As his words fell, Setting Sun Patriarch flicked his sleeve, revealing a resplendent Heavenly Wheel—the Heaven-Opening treasure, the Setting Sun Celestial Wheel.
The Setting Sun Celestial Wheel had been polished from a fragment of Setting Sun Heavenly God's bone. Shaped like a crescent moon, it resembled a broken sun, yet it was in truth an incomparably fierce offensive Heaven-Opening treasure.
It contained boundless killing intent, as though it held a trace of the endless hatred left behind when Setting Sun Heavenly God fell. Its slaughtering power was formidable even among mid-grade Heaven-Opening treasures.
Under Setting Sun Patriarch's control, this world-shaking treasure cleaved down with unmatched sharpness, as though it meant to sink the entire Guixu Sea Region.
"Focus yourselves! Activate the formation with all your strength!"
As the Setting Sun Celestial Wheel bore down upon them, the immortals within the Guixu Sea Region changed color, and a majestic voice rang out in every direction.
For a time, countless cultivators across the Celestial Archipelago activated the formation with all their strength. Endless starlight gathered above the nine heavens, pushing the Celestial Stars Grand Formation to its utmost power.
At that instant, the Setting Sun Celestial Wheel slammed into the Celestial Stars Grand Formation, making the entire formation's radiance shudder violently.
Among the tens of thousands of spirit islands, the light over more than a hundred islands was extinguished in an instant. Clearly, the spirit treasures anchoring the formation had been destroyed by the backlash of that strike.
On the many spirit islands, over thirty percent of the cultivators coughed blood on the spot and suffered severe internal injuries. Some cultivators with unstable foundations were even