"Yeah, but it's because they ain't stupid that they wouldn't just wander on up," Joker points out, snapping the book he has closed. Nothing useful in it, at least far as he can tell. Ever so ~politely~, he sets it down by Strange's elbow and browses what else there is.

"Stronger demons, or more demons, could likely do a number on mages, especially if they're the sly sort. That's not even talkin' about if they've got any warlocks under contract, yeah?"