White Officer informed Tian You, Tian Peng, Black Fiend, the Dragon Kings of the Four Seas, the chiefs of Yin Mountain, and so on.
This was all the top echelon of the Daoist Sect's law lineage. Previously, for concealment, they communicated privately, some having never even met because they were part of a secret alliance. If discovered, the consequences were unimaginable, and such could also ruin the Daoist Sect Leader's arrangements.
Therefore, this was Tian You's most worrisome aspect. As for that so-called Imperial Tomb, he was completely in the dark and had no idea what it entailed.
It was only mentioned in passing, but intuition told Tian You that the Imperial Tomb was not just ordinarily important. White Officer's brief allusion was probably due to the fear of leaking secrets.
Tian You secretly thought that he might have to go this time.
