You chose to look into the crack first.
You get a good look around and find that this place was or maybe still is a torture chamber. Then you look at more of the room. You see a shelf full of different kinds of potions. Then you hear a moaning noise. You look around the room even more and see a huge, muscular, older looking man is making something in a very large pot.
You step away from the door. The man hears you. You become scared for you have nothing to defend yourself with.
But wait, there are things in the room that you recall, such as dead rats or a spinning wheel.