Endless Night

A mid-level party of seven adventurers, led by a paladin, becomes trapped in a vast subterranean ecosystem after a moving battle against orcs collapses their route home. The party includes a rogue, ranger, cleric, evoker mage, summoner mage, and a fighter of a single standard fantasy race, with varied genders and ancestries. They must cross underground seas, foul-beast territory, cities ruled by dark elves and deep dwarves, and lairs of mind flayers and other eldritch horrors while finding another way out.