The dungeon exists inside a dark cave. Enchanted torches light the cave up and lead the way to this ancient dungeon. Creatures can be seen populating the dungeon, but it is unknown if they are malevolent or benign.
Inside a desolate cave, Dungeon
bandit
bat
I am a creature of the night. I like dark spaces and dislike light. I like to fly at night and just wonder around the realm.
Who goes there? Are you friend or foe? I'm a friend to all! Ahh good. So many who go here are foe. Be careful. What brings you to this lonely cave? I seem to be lost in this cave! Perhaps we can work together to take this magical gem and enchanted torch? Very good very good. What shall you do with this gem? I will gladly trade you this fine jewel for that gem Hm. Sounds like a little trick to me.  I also have a shield or a boot for trade but I do not think a bat would need a boot You know little about bats then. I love to hide in all manner of objects.  Then I will gladly offer you my boot or my shield for that torch You can have this jewel I suppose. I have little use for it in this cave.  Although I am a bandit I see an opportunity for us to work together in stealing from travelers and splitting the loot. What do you say?