Upon reaching the turning corner to the third floor staircase, Yan Junze first released his own "Shadow," letting it stand right at the inevitable path at the corner, in this way, it could also block the Reaper for a moment, and, incidentally, warn him in advance.
Then, he took the Gute Gorgeous Oil Lamp from this spot and headed to the third floor.
After arriving at the third floor, Yan Junze immediately lit the oil lamp, still placing it at the top of the staircase, to attract other strangenesses to swarm to this place.
The magnetic field here was already extremely chaotic; the flashlight couldn't be turned on. Relying on his previous memories, he didn't use his lighter either, simply holding the Black Spirit Umbrella as he walked to the end of the corridor.
The purpose of holding the Black Spirit Umbrella was to guard against strangenesses in the chaotic magnetic field that might suddenly attack him in a frenzy, so it was still best to be cautious.