Hi all, I own a Star Trek Concordance, and used to own a Darkover Concordance. I'm hoping there is a Dark Shadows Concordance. These sorts of books are often popular with fans, and contain things like maps/floorplans, character and location descriptions, timelines, and so forth. Much of this type of information is normally included in a "show bible," but publications for fans are usually nicer.
What I'm not really looking for are photos from the sets or PR department, production ancecdotes and all that sort of thing. In other words, not a book about the tv show, but a book about the fantasy world. Not a novel, but a reference book.
Does anyone know if there is such a thing for Dark Shadows? Thanks!