It's A Long Way To The Bottom (If You Wanna Hack And Slash)
The Silver Hole of Endless Wailing
The Silver Hole is rumored to have a great and ancient treasure, but repels adventurers with harrowing moans and impenetrable mist. The Party ventured inside to find it filled with murky water and bones of deceased creatures. At the end, they encountered Bruta, an ancient troll that has been trapped there for over 500 years after an adventurer of ages past slaughtered her trollish clan and employed the aid of a druid to bind her to the wall of the cave.