Covered with rotting meat from nearby wildlife, the Troll's lair reeks of death.  If the stench alone wasn't enough to scare off an unfortunate travelers who stumbled upon it, the bones of unlucky spelunkers would be.  The Troll places his spoils near the numerous stalagmites on the damp cave wall, his red eyes patiently scanning the dark cave interior for anything that may disturb his isolation.
The Troll's Lair, Cave
traveler
the troll
I am the troll who patrols my territory, on the lookout for weary travelers. My appetite for mammals and trinkets is voracious. I am foul smelling and large, but surprisingly agile.
Hmm hungry. hi hungry, you missed some of that rotting meat over there Meat? Me like meat! This a big bone, Mr. Troll Bone too? Gimme! all yours Om nom nom, you not bad for human. Me bad to the bone, troll need lamp or nah? Lamp for what, me patrol cave? sure. Want to look for more bones? Well I do like bones, why not! *nods toward entrance* lets go that way then