Mag pulled an all-nighter and used his demi-god's super reading ability to finish reading the entire Underground City's chronicle.
This should be an internal circulation version because it started from the Underground City's ancestors' migration from the Norland Continent to Underground City.
35,000 years ago, a strong earthquake caused a section at the south of the Norland Continent to collapse and fall into Underground City.
The living things within the area of tens of thousands kilometers became the first batch of Underground City's immigrants.
The Underground World was as vast as the Norland Continent, but it didn't have as much competition from the strong races as the Norland Continent. Hence, its produce was extremely rich.
After the initial friction and collision, the six races in the fallen zone reached a consensus and decided to develop the Underground City's fertile lands together. This was also the earliest form of the Underground City Federation.
