He once used his Spiritual Sense to delve into Zhenbei Prison and found that there were two layers of an Underground Palace in the prison, and the material style of the Underground Palace in Laojun Mountain seemed exactly the same as the second layer of Zhenbei Prison.
Besides that.
The Underground Palace within Laojun Mountain appeared very spacious on the surface, but it seemed that everyone was only free to come and go in this area.
At the edge of the marketplace, there was a special wall over three meters high.
Behind the wall, there were fluctuations of Spiritual Power.
Jiang Feng, well-versed in Restriction Arrays, immediately saw that there was a powerful Restriction Array behind the wall, preventing anyone from entering the depths of the Underground Palace.
"Could it be that the rumors are not unfounded, and there is indeed an Underground Palace beneath Dragon Capital, even larger than the city itself?"
Jiang Feng marveled inwardly.
