However, he still couldn't find the mechanism to open the hidden door.
This was no challenge for Xu Shu. He quickly adjusted his posture and walked ten steps backward in a mysterious pattern, three to the left and seven to the right, entering an "invisible" state, disappearing without a trace in the air.
Woosh~
Amid an undetectable fluctuation, using the bookshelf in front as a pivot, Xu Shu spun two and a half times, passing directly through the wall into the secret passage.
Inside, there was a staircase folding downward, over a meter wide, with dim white wax lamps illuminating the walls, and a faint but bothersome oily smell lingering in the air.
Without pausing, he immediately transformed into a pool of blood again, clinging to the wall and flowing downward.
At first, it was extremely narrow, barely passable for a person, but after traversing four sections of stairs, he suddenly arrived at a lightly concealed green wooden door, with faint orange light visible at the doorway.
