The following sounds like a campfire horror story, to be savoured for a thrill up the spine, but I have it on good authority that it is entirely true:
There are many treasures to be found within the walls of the world’s libraries, protected from the world. At the same time there are just as many things that perhaps the world is being protected from by those libraries.
In the attic of Farnham library, there is a papier-mache sculpture of a frog. It sits there in the dark in its own room, set aside from the main part of the roof space all alone. It’s roughly the size of a man, and those who have seen it say that if you were to remove the frog’s head, then what remained would look just like a body. Nobody goes up there to look at it. They all know it’s up there, silently waiting.