Leaving the dean's office and confirming that there was nothing more to scavenge on the third floor of the academic building, Lin Xun returned to the stairs at the entrance of the hallway.
[At the entrance of the hallway, there are stairs leading to the lower floors of the academic building. You look at the wall at the side; it is marked with the character of the third floor.]
[A rusty iron ladder is embedded in the wall next to you.]
[Looking up, the ladder extends to the ceiling where there's a square hatch, which appears to be able to lead to the rooftop of the academic building.]
[Will you descend the stairs, or climb the iron ladder on the side to the rooftop?]
Lin Xun decided to explore from top to bottom, first finishing the upper structure before going to the basement lab.
[You climb up the iron ladder, using both your hands and feet.]
[You open the hatch at the ceiling and climb onto the rooftop of the academic building...]