C250 Probing the Secrets of the Heavens

When I entered the Gray Immortal Temple, I suddenly felt a sinister aura. When I looked carefully, there was a praying mat and a small table in front of Gray Immortal Great Grandpa, and on the table was a pile of bones and horn-like things.

I remembered that my foster father had used human bones to set up a formation to confuse the Ghost Messenger and escape death