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
knight
spelunker
I am a spelunker.  I work with a group of fellow spelunkers.  We explore caves in hopes of finding lost treasures once hidden.  We were hired by the king to discover lost royal treasure.  To our misfortune we are now lost.
Hobbyist? Why, I was hired by the king to find royal treasures! I ended up a little lost though. *covers nose from horrid smell* Ah, well, um, er - i do apologize. I wasn't aware the king had sent out adventurers at the same time I've been sent to dispatch this foul beast. You mean this lovely troll? *gags* What did he do to deserve such a treatment? Well for one thing, that troll has reduced our beloved Farmer Gentry to this bit of rotting flesh. We can no longer sit idly by as our village is ravaged! Have you seen the beast? Oh dear! I didn't know such a thing. I have not seen him, but I can certainly smell him. I wonder if he has any hidden treasures down here? Well we're both here on the king's orders, perhaps I can provide you protection for a cut of the treasures. Surely the king doesn't need to know.