Following Wu Xiaoxiao, Su Nan entered the secret realm.
This place was also an independent space, but unlike the cave dwelling of the Cave Immortal, this secret realm was small, very small indeed.
There was no vitality here; apart from ruins, there was nothing else.
Along a stone path, Wu Xiaoxiao led Su Nan to a stop at the end of the road, where Su Nan could faintly feel a dangerous aura permeating from a barren land a hundred meters ahead.
Wu Xiaoxiao said, "The Thunder Sea is directly ahead. It's not visible now, but it will only appear when someone enters it."
Su Nan nodded, and in front of his eyes, information of foreknowledge kept popping up.
[You followed the Outsiders into the cave dwelling left by an Ancient Powerhouse. This used to be the dwelling of a Saint Level expert, extremely dangerous. But, after tens of thousands of years, the dangers in the cave dwelling are no longer fearsome.]