Into the Darklands
Everyone knows that monsters live below. You’ve all heard the stories of the deformed men who dwell in blue-litten tunnels, the shapeless crawling horrors with acid for skin, and the dark-skinned demon-worshiping elves. You may scoff at some of the stranger stories, of fish capable of controlling the minds of nations or of hidden lost worlds of primeval wonder and horror. I have been below, and I know better than to scoff. Count your blessings, up-lander, since when night falls your sun is never more than a few hours away. Here, the night lasts forever, and the monsters never sleep.
—Koriah Azmeren (Pathfinder Chronicles, Volume 4)