All he could see was a floor covered in a thick layer of dust.
But a Golden Core cultivator's eyes could easily see through the dust and make out what lay beneath.
It was an extraordinarily complex teleportation formation, more intricate than any he had seen before.
Densely packed formation patterns intertwined into tiny miniature formations, which together constituted the entire teleportation formation.
The mystic principles it contained would probably leave even a low-level formation master dizzy and unable to unravel the underlying workings.
At least, that would be the case for Zhuo Mengzhen.
At that thought, Liu Yu smiled inwardly. Having shared her bed for decades, he knew exactly how accomplished she was in formations.
A black token lay quietly on the teleportation formation.
Great Shifting Token.
Liu Yu picked up the token, wiped off its dust, and examined it carefully in his hand.
This ancient teleportation formation was unusually complex, clearly intended for long-distance travel.
During long-distance teleportation, the crushing pressure of spatial power could not be overlooked. Even a high-level cultivator might perish through a moment's carelessness.
Given the black token's various features and the significance of its deliberate placement on the teleportation formation, recognizing its function was not difficult.
The Great Shifting Token was a special magical artifact more sophisticated than a teleportation talisman. It could protect a cultivator's body during teleportation and could be used repeatedly.
Judging by the outcome, although the master of this grotto-heaven set all manner of dangerous trials, his ultimate goal was still to pass down those two treasures.
He even thoughtfully prepared an escape route for those who came after him.
Looking at it that way, he probably wasn't a demonic cultivator.
Though, from an ordinary cultivator's perspective...
Putting away the Great Shifting Token, Liu Yu smiled faintly as various