In Black Rock Mountain, poisonous snakes were everywhere, with many snakes reaching the level of Exotic Beasts. Naturally, some snakes evolved further into Demons.
In fact, as soon as the Twelve Golden Papers formed and revealed the location of the Immortal Martial Treasure Vault, he recognized that the vault was right here, in Black Rock Mountain, also known as Snake Mountain.
For this reason, he researched the records.
He learned that Snake Mountain formed within the past hundred years.
Because it was in a wilderness and sparsely populated, some people noticed it during its early-stage formation, but none connected it to the Immortal Martial Treasure Vault.
Additionally, because Snake Mountain was covered with poisonous snakes, even First-class Experts dared not set foot easily, thus it gradually became a forbidden area, with few records about this place.
However, even in those scarce records, there was information about Snake Demons.