C602 Rescue Ghost

I was confused.

The red handkerchief is indeed on me, but it was always on my backpack, so I didn't take it out.

Why did Bobo say that the handkerchief was covering the ghostly old man's face?

Also, what do you mean by 'the descendant of the exorcist'?

Ghosts weren't existences that were immortal, but like humans, they would be injured, and similarly, they would die