What is the Okoulous?

The Okoulous gazes from depths unknown and time immemorial, watching, waiting.

Is it an eye? Is it an opening, a portal to some other malevolent dimension?

Is it a gaping maw, which exists only to devour?

Does its sinister will creep into the cities of men, weaving its influence among the souls of mortals?

Or does the Okoulous merely rest, biding its time until the moment when it shall emerge, as prophecy foretold, to unleash tempest, deluge, and tremor upon the surface world?

We among the living should count ourselves fortunate if we never learn the answers to these questions.