Lake Geneva public library, see if you can start a rumor the way the Necronomicon card catalog entry at Yale did.
Though it used to be fictional, it now exists. I have a copy on my shelf.
Weird tales of creatures and things from places unknown reside between it's covers and stories of madness and insanity grace it's pages.
I highly suggest it.
You have the fake version from 1977 which you could get for 8.99...or THE Necronomicon....looks to run around $25.
Of course whether you dare read it or not...that's your OWN decision...