C585 Stone Room
This seemed to be a secret passage, and the place I had just slid down seemed to be an entrance to the secret passage.
I looked up. It was pitch black overhead, so I couldn't tell where I had fallen. The only thing I could see was that the slide was very vertical and very slippery. There was no way to get up.
I could only go along the secret passage.
There was no visible light in the passage