Just as Gu Xi had expected, the walls surrounding this Half a City were also built from Purple Quality stone.
And it was stone aligned with the undead and Negative Energy.
It had been built from a type of stone called Stonebone.
Stonebone was actually a stone ore that had absorbed Undead Aura and slowly developed all sorts of bone-like effects.
This kind of stone ore was relatively rare in some places, but extremely abundant in others.
City walls built from this stone would gain effects such as undead traps or bone walls.
They also had self-repairing capabilities.
All things considered, it was a fairly useful construction stone for city walls.
Gu Xi simply had not expected this Half a City to be completely surrounded by Stonebone.
It seemed that when this city had existed, its level of development had been quite high.
They entered the city through its gates, and the first thing they saw was an enormous plaza.
This design was unlike that of an ordinary city. Normally, a city entrance should have led to a main road, with buildings lining both sides.
Such a large plaza was clearly unusual.
But upon closer inspection, Gu Xi discovered that the enormous plaza, which could hold at least three hundred thousand people, was piled full of corpses.
All of them were human corpses, and it was obvious they had been processed.
Every corpse had been washed clean.
"These are two million human bodies, all of them processed and delivered together with this Half a City."
Seeing Gu Xi's expression, Luna deliberately explained.
However, Gu Xi's attention was not on the corpses. His gaze passed over them and fell upon the ground beneath.
"There used to be a building here, right? It was torn down?"
"Yes. After the city was delivered,