The system's voice spoke quickly, and by the time Lin Yi reacted, the system had already indicated that the dimension had been opened.
Not only that, as the system announced the completion of the dimension opening, a massive change occurred simultaneously in reality.
Right before Lin Yi's eyes, a black vortex suddenly appeared on the wall.
Although the vortex wasn't large, seemingly about a meter in width, its profound depth made Lin Yi dumbfounded at his spot, with a tinge of unease in his heart.
It wasn't that Lin Yi was timid; anything unknown that suddenly appeared would terrify any human.
Especially since the vortex was black, and black is inherently a color humans fear.
The black vortex swirled rapidly, its interior vaguely resembling a bottomless pit to Lin Yi.
It was impossible to discern its depth or know what lay behind the vortex.
In an instant, countless thoughts flashed through Lin Yi's mind.
Could this be a passage to the moon behind this wall?
