Everything that had happened in the past flashed through Yang Qingyun's mind.
More than thirty years had passed.
Of the five top forces in the former Southern Heaven Domain, it seemed that only two still existed now.
The changes were truly as vast as the vicissitudes of the sea and the mulberry fields.
Yang Qingyun sighed inwardly for a moment, but did not dwell on it. He directly cast those thoughts to the back of his mind.
His vast soul force began to sweep outward, sensing every corner of this stretch of heaven and earth.
He tried to find the location of the ancient Grotto-Heaven Ruins from back then.
However,
"Hmm?"
Yang Qingyun slightly furrowed his brows.
His soul covered an area of a thousand li in every direction. Every inch of space was repeatedly swept over and carefully searched.
Yet what puzzled him was that he had not sensed the slightest abnormality in this world!
The space above and below was all flat and even. There was no distortion or weakness, much less any weak point connected to the Secret Realm Grotto-Heaven!
Something was wrong!
Even if that ancient Grotto-Heaven Ruins opened only once every twenty years, and several years still remained before the next opening, it absolutely should not have left behind no traces whatsoever!
Normally, at the location linked to a Secret Realm Grotto-Heaven, even if the entrance and exit had been closed, faint traces resembling "scars" would still appear in the space around it.
But,
In Yang Qingyun's perception,
this stretch of heaven and earth had retained no spatial traces at all!
"That's impossible..."
Yang Qingyun murmured under his breath.
Without making any visible move, his figure flashed, and he arrived above a mountain platform.
He reached out a hand. Threads of power seized outward from