The General Tier's Demon Energy Soldiers possess such mighty Power, let alone the Heroic Spirit level Absolute Skill.
Moreover, there's some good news: the Inheritance Hall contains many special Corpse Refinement methods, which can greatly help Chu Xiu utilize corpses.
Regarding the mountain's coordinate, it's a coordinate within the Abyss. However, it's not the location of the Demon Sect's, as after the defeat in the great battle between righteousness and evil, the defeated Demon Cultivators were completely wiped out, leaving nothing at the original spot.
That coordinate is actually the coordinate of a scattered Demon Sect stronghold.
When the Demon Sect was annihilated, although most of the Demon Cultivators were eradicated, some escaped. After all, the Demon Cultivator forces were vast and spread throughout the Immortal Cultivation Realm. Over the million-year continuous pursuit, a very small number of legacies still spread in the corners.
