Hanging Rock is the popular name for Mount Diogenes,
Hanging Rock is a mamelon, created 6.25 million years ago by stiff magma pouring from a vent and congealing in place. Often thought to be a volcanic plug, it is not.
THE HISTORY OF THE MISSING GIRLS!
While exploring Hanging Rock on a picnic trip, the girls experience several incomprehensible phenomena. Driven giddy by some supernatural suggestion of the monolith, they throw their corsets over the cliff. However, the corsets never fall to the bottom and instead hang in space in an impossible fashion. The girls and Miss McCraw notice a mystical "hole in space". Marion, Miranda, and Miss McCraw transform into lizard-like creatures and crawl into a hole in the rock, which another boulder then covers, leaving Irma alone and clawing at the fallen rock.
then again it’s a book… or is it?