As a transmigrator, Yuangeng knew a great deal about the spacetime he inhabited.
The great realm he currently occupied, once called the Primordial Ancient Realm, was actually only one of several great realms on this shore of the Boundary Sea, alongside the Foreign Realm, the Immortal Domain, and the Burial Domain. Farther beyond lay the even deeper, even more unfathomable Boundary Sea.
On the other shore of the Boundary Sea, similar spacetimes also existed.
Yet the Boundary Sea and the spacetimes on both its shores combined were, in truth, only one of the Myriad Heavens and Worlds. There were far too many other enormous conglomerations of spacetime like the Boundary Sea. They were like the stars in the firmament, shining, but far from alone.
The true heart of the Myriad Heavens and Worlds was Above the Heavens, a supreme realm that had endured since ancient times, almost eternal and imperishable.
And the former owner of the Stone Door Yuangeng now possessed had been an existence more exalted than any spacetime, any Great Dao, or anything at all.
"Hum!"
The instant he touched the Stone Door, Yuangeng felt his flesh and his Primordial Spirit dragged into a bottomless temporal vortex. It was a violent, surging undercurrent beneath the surface of the River of Time, tearing at him without restraint.
Before the eternally surging River of Time, even though Yuangeng believed his true combat strength already rivaled or even surpassed that of many beings in the realms of True Immortals and undying beings, he still felt small and insignificant. Here, any wave thrown up by time could smash him into drifting ash.
Fortunately, the Stone Door was the most trustworthy anchor Yuangeng could grasp. Its existence had long stood above time and space, granting even Yuangeng a portion of its "eternal" nature.