Behold the idynoth, a race that hails from some cosmic, primordial ocean. Some call it "Bythos", others "Tehom" or "Abzu". Their world connects with ours through the dark waters in oceanic trenches or deep lochs, and they come bearing strange gifts and the promise of immortality.
Basically, I wanted to make my own Deep Ones, except without any of the racism old Howard stuffed his fishy people with.