Seven-Colored Divine Sand had originally been the Immortal Island's strongest barrier.
Each grain of Seven-Colored Divine Sand was as heavy as a mountain. Countless grains gathered together, spinning at a speed that surpassed even the Golden Crow Rainbow Transformation Art.
Even a Celestial Immortal would struggle to find a gap to slip through.
No magical treasure could easily pierce this barrier, either.
Thus, over countless years, no one had ever broken through.
The Dongfang Family had studied the Immortal Island for countless years before finally discovering that the Seven-Colored Divine Light was actually Seven-Colored Divine Sand.
Dongfang Qingcang had scoured all manner of ancient texts before finally finding the powerful Yin-Yang Stillness Formation.
With little lifespan remaining, he had taken the risk, hoping to enter the Immortal Island.
To his surprise, joining forces with over ten thousand Nascent Soul Realm human cultivators and Demon Kings to lay out the formation had actually worked.
Dongfang Tao and the Seven Kill Sword Saint had also become privy to this matter.
By now, events had spiraled beyond anyone's control.
The various immortal cultivation factions had learned how to enter the Immortal Island, and now the incarnations of over two hundred and forty Eternal Giants and titans of immortal cultivation had entered it.
This meant that, from this day onward, the Immortal Island was no longer a forbidden zone.
Once the Ancient Immortals' formations and restrictions on the island were broken, those Eternal Giants and titans of immortal cultivation would be able to freely wield their divine abilities and spells.
At that point, all the treasures on the Immortal Island would be plundered.
Lin Fei knew that this would probably be his last visit to the Immortal Island.
If he could not stop the other Eternal Giants and titans of immortal cultivation, he would