At this moment, the wooden door was closed, clearly locked from the inside by someone.
However, dealing with a wooden door was much easier than with an airtight stone wall.
Li Wenli slipped a dagger into the gap of the door, moving it up, down, left, and right. After a short while, the sound of the door bolt falling could be heard from inside.
Bai Sasa joyously picked up her backpack, ready to enter, but Li Wenli stopped her.
"This room has been sealed off for years. There might be toxic gases. Let's wait for it to air out before we enter," he said.
Bai Sasa obediently nodded and sat down beside her older sister, thinking they would need to wait at least a quarter of an hour, but it was only two minutes before Li Wenli allowed them to enter.
Li Wenli stood at the door for a moment, and suddenly a strong wind surged around him.
