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
a captured knight
I was captured in the most recent battle.  I am lucky to still be alive.  I have to escape soon.
Psst...over here! My fellow knight! How did you end up here? They threw me in here after I was captured in battle.  The Troll was gone and they locked me in here!  Can you unlock it. Be careful...the Troll has horrible smell but great eyesight! I will try! Is the troll still nearby?  He went out the other entrance of the cave but I know he'll be back soon!  Maybe use that bone to break the lock? I'll try using this giant club the troll left behind. It looks much sturdier.  Ok, that's even better.  You sure you can lift it?  I'll back away from the door and lock.  Did you hear that? I think I see his red eyes in the distance! He must have heard us talking!  Oh no!  Crouch down!  I don't want you killed because of me. I don't think he saw me yet, but I can't break this lock without attracting his attention. What should we do now? I have an idea. Poor turtle, but we must live!  Hit the lock with the club and bash it in and then throw the turtle as far as you can toward the entrance.  Maybe he will think that's the loud noise and then we can sneak out once he leaves again. Okay, get ready to run as soon as the lock's broken! We can't have you being captured again! 