Shi Xiaoya looked up, down, left, and right in a full circle, and indeed, she made a discovery.
When she turned back, she noticed that there was a small waist bag placed at the corner of the wall beside the door.
As it was a black waist bag, and the light here was very dim, she did not notice it immediately.
Shi Xiaoya quickly went to pick it up and noticed that there was a torchlight in it, as well as a worn-out notebook and a pen.
Shi Xiaoya hung the waist bag on her waist and took out the torchlight to turn it on. She held the torchlight in her mouth to free her hands to take the notebook and that pen.
She tested the pen on a blank space in the notebook. The pen was working, so she then put away the pen properly.
She opened the notebook. Written on it were the words: The entrance has already been sealed. If I can't find an exit, I will be trapped here forever. I believe the exit here can lead to the ancient castle.