Ghoul is almost completely positive that nothing will happen. Hillingdon makes him think of a beehive more than anything. Kind of freaky to be around, but they won't attack unless somebody starts kicking at it.

He'd better be right. Too late to leave now.

"Came to visit somebody in there. It's a ghost, actually. You seen him before?" Probably not. He forgets that ghosts are hard for a lot of people to see.