C121 Nine Heavens Thunder

Black Rock City was the largest city under the Devil Clan. The horn here was made from Kui Cow Bone and would ring once every three days to summon the demon experts who were still outside the region.

The situation in the city was no different from that of the Immortal Dao Sect's Divine City. Both sides were lined with ancient paths and many inns. A few fiendish demons were still trading