Dungeon Crawl Classics: The One Who Watches from Below

From publisher blurb:

A Level 1 Adventure

The rumors are true! The secret cave of the mystics holds a hoard of treasure vast enough to buy the kingdom seven times over. Gold coins piled as high as snow banks! Gleaming swords and jewel-encrusted wands crackling with arcane energy! Precious gems as large as your fist! The only thing standing between your present circumstances and a life of fabulous wealth is a pesky, slumbering elder god with a penchant for consuming entire worlds, an endless army of vat-grown hybrid monstrosities, a veritable tidal wave of disembodied eyes with awesome powers, giant acid worms, and a curse with the power to rip the still-living eyes from your skull. Do you have the mettle to stare down a god or will your eyes forever adorn the vault of The One Who Watches From Below?