The interior of grave city was filled with monsters.
They scurried around the streets, occasionally rushing into the ruins of buildings, as if they were having fun searching.
After finding a suitable location, they would continuously lay eggs.
In the corners of many buildings, a large number of beast eggs had been laid. Through the translucent eggshell, one could see the young wriggling inside.
The reproduction rate of monsters was extremely fast. These densely packed eggs only needed two to three days to break out of their shells.
It was no wonder that even after killing wave after wave of underworld monsters, there was no sign of the number decreasing.
At this rate of reproduction, there would only be more and more in the future.
Monsters were similar to wild beasts. When there was plenty of water and grass, they would give birth to a large number of offspring, and the number of their population would expand rapidly.
