Shoggoth Mother by feline
The poor investigator stumbles into a cave and discovers something rather nasty... I suddenly got an inspiration when I was eating instant noodles with tuna and cheese. Go figure.
Of course according to Lovecraft shoggoths are only about 15 feet in diameter, but I liked the idea of an overgrown one just sitting there in its cave for millennium after millennium, eating everything that happens to wander in, or possibly fed by cultists, and growing, ever growing...
Yeah. Instant noodles are good for your mental health.