If the doors on the third floor could at most be considered basic seals, then the door leading to the fourth level was undoubtedly an advanced seal. Sealing formations and sealing runes overlapped in layer upon layer, and beyond them, a restriction lay buried in the deepest layer.
Yun Huanling carefully examined the patterns on the door and could not help sending Su Jiu a voice transmission. "Anyone who can combine formations and runes like this is probably no less skilled than I am."
Su Jiu said nothing, but her gaze shifted slightly. What she left unsaid was that it was not just Yun Huanling-even she would need some time to set up a seal like this.
This person might not possess exceptional talent, but he certainly knew and understood far more than ordinary cultivators. More than that, his cultivation might already have reached a level far beyond their own.
Su Jiu gathered her wandering thoughts and returned her attention to the door. To unravel the runes and formations on it, the first thing they had to do was undoubtedly distinguish one from the other.
This task was not difficult for Su Jiu. The difficulty lay in removing those layers of formations and runes without triggering the restriction beneath them.
All four of them apart from Qi Song were studying the formations, while the others behind them exchanged bewildered looks, clearly unsure what was going on.
Just then, a man stepped out from the crowd. There was a trace of arrogance on his face, and he seemed quite confident.
However, the four were so absorbed in their work that none of them noticed his approach.
Chu Luohen was clearly considering a solution as well. Having cultivated for nearly a hundred years longer than Su Jiu, however, he soon
came up