Actually, these pieces of information about the Spirit World had already been gathered by Frubor's subordinates.
Gathering various important information from the Spirit World and transmitting it to the higher-ups at irregular intervals was also something Frubor had arranged.
After all, ordinary Ghost Practitioners could hardly come into contact with cultivators from the Spirit World, but as the high-ranking and even top-ranking Ghost Practitioners of the Spirit World, they could not afford to be completely ignorant of information from the Spirit World.
Putting it bluntly, the overall strength of the Spirit World still far surpassed that of the Netherworld, and if one day the top cultivators of the Spirit World took it upon themselves to launch a major invasion of the Netherworld, they shouldn't be caught off guard and clueless about the strength of the top cultivators from the Spirit World.
