"I, George Oldman, would like to ask Master, what's the difference between the Ghost Door Formation and the Ghost Summoning Formation?"
Now the old man no longer underestimates Peter Brown and begins to ask questions while following behind him.
Peter said, "Ghost Door Formation may sound powerful, but it isn't. Ghost Door Formation isn't much stronger than the Ghost Summoning Formation. Put it this way, Ghost Door Formation is just a doorway for ghosts, and it's not guaranteed that ghosts will come or not. But the Ghost Summoning Formation is different; it's a very practical formation. As long as the formation is activated, after someone dies in this area, their ghosts will head towards this direction and be incorporated into the formation."
He pointed to a distant place and said, "See that? That's a hospital. I believe there are many dead people inside. Some who died miserably often carry resentment and gather together, and then are attracted by this formation."