I’m always happy to use the words eldritch and horror in the same sentence. The stone the tide unearthed showed carvings of creatures: which creatures I wasn’t sure, but they possessed a heaping helping of tentacles, wings, eyes, and talons.
That explained a lot. The mysterious disappearances from the beach, the green lights hovering over the moonless bay, the shrieking of ghastly voices on windless nights.
This was perfect.
There is a demographic who would risk madness and death to glimpse anything described as eldritch horror.
I started the R’yleh Diving Club and waited for the freaks to pour in.
The nightmare corpse-city of R’lyeh…was built in measureless eons behind history by the vast, loathsome shapes that seeped down from the dark stars. There lay great Cthulhu and his hordes, hidden in green slimy vaults.
— H. P. Lovecraft, “The Call of Cthulhu” (1928)
The Green-Walled Tower 