The location of the imperial divine vein.
Streaks of mountain ranges, this place was once a site for mining the spiritual divine vein, a border area to four prefectures, and was under the control of Thunder Knife Sect.
But with the submission of Guihai Prefecture, it naturally became the territory of the Great Wu Dynasty.
However, no one knew that as the divine vein was continuously excavated downward, it suddenly collapsed, revealing an underground area housing an imperial vein.
The imperial divine vein produces imperial heavenly stones, which are extremely valuable.
But the existence of the imperial divine vein is secondary, there was also the thunder stone, which Chu Yuan has been constantly acquiring. This is the key material in making the Thunderbolt Cannon.
The production of the Thunderbolt Cannon was still falling behind.
