C52 The appearance of a wraith

Before the gate opened, the Mr. Ning gave Li Wa and I each a yellow orange-like fruit. He told us to fill our eyes with the juice of the fruit so that we could see ghosts that ordinary people wouldn't be able to see.

I asked him why did he not give us this fruit when we were transcending the Undead. Mr. Ning said that most of the Undead were souls that accidentally died