If the incident of accidentally entering the War God Hall could be called a misunderstanding, then there was no misunderstanding about visiting the Heavenly Emperor and arriving at the Heavenly Palace.
As for the Heavenly Palace's internal environment and layout,
Lu Yuan knew them like the back of his hand.
As for the outside,
namely the Inner City and Outer Urban Area,
Lu Yuan did not know much about them. After all, several hundred thousand years later, those places had already been razed to the ground, with other kinds of structures built over them. The original ruins had been cleared away. Although everyone in the Myriad Heavens knew from the records that this land had originally been the Heavenly Palace's territory, the Heavenly Palace had been sealed away by the Heavenly Emperor. Even if they knew, or had specifically come to see it, no one would notice anything amiss or be able to drag out the Ancient Heavenly Palace.
Still, it had to be admitted that those ruins held considerable value.
The cultivators of the Sky Luo Continent,
especially those near the Ancient Heavenly Palace,
had relatively high tactical awareness.
After all, although the Ancient Heavenly Palace's Inner City and Outer Urban Area had been destroyed in the war against the Extraterrestrial Evil God Race, quite a few things had been left behind. At the root of it, the place had been built on a pyramid-like structure. While the Inner City's overall strength could not compare to the Heavenly Emperor, the Five Hall Masters, the Three Prefecture Lords, and the several hundred thousand Great Luo Heaven Army soldiers within the Heavenly Palace itself, many independent Supreme-level cultivators lived in the Inner City. Moreover, while the families of Heavenly Palace disciples lived there, that did not mean they were powerless. On