Every story has an ending. The ending must be worth.
Who cares, what is actually happening here, if you will not be rewarded?
Adventure matters, but the ending matters too. You opened a door and faced
the dream of every human being. Happiness and greed. Money, gold, trinkets
from every other adventurers, who never returned from this place.
You started laughing, louder and louder, until you started even crying
You were feeling dominance, you were better, than anyone else, who tried to reach the treasure room
You finally did it!
You finally... happy.
Wait... Did the door just locked?
Happy death