"And Ghost? He lives here at Supernatural? He's a ward of Supernatural?"

"Hardly. Ghost is a stray cat. He goes anywhere he wishes., He's got friends all over the planet. He's big stuff, I understand, at the College of Comparative Religions on the Himalayan Campus. But he manages to drop in here on a fairly regular basis. He and Oop hit it off from the moment Supernatural made its first contact with Ghost."

"Pete, you call him Ghost. What is he, really?"

"Why, he is a ghost."

"But what's a ghost?"

"I don't know. I don't think anybody does."

"But you're with Supernatural."

"Oh, sure, but all my work has been with the Little Folk, with emphasis on goblins, although I have an interest in every one of them. Even banshees and there's nothing that comes meaner or more unreasonable than a banshee."

"There must be specialists in ghosts, then. What do they have to say about it?"

"I'd guess they might have a few ideas. There are tons of literature on spookery, but I've never had the time to go into it. I know that back in the early ages it was believed that everyone, when they died, turned into a ghost, but now, I understand, that no longer is believed. There are certain special circumstances that give rise to ghosts, but I don't know what they are."

"That face of his," said Carol. "A little spooky, maybe, but somehow fascinating. I had a hard time to keep from staring at him. Just a dark blankness folded inside his sheet which, I suppose, is not a sheet. And at times a hint of eyes. Little lights that could be eyes. Or was I imagining?"

"No. I've imagined them myself."

"Will you," asked Carol, "grab hold of that fool cat and pull him in a foot or so. He's slipping out onto the faster belt. He has no sense whatever. He'll go to sleep any time, at any place. Eat and sleep is all he thinks about."