The passageway hidden behind the wall was dark.0

In fact, it wasn’t just black. It was so dark that not even the outlines could be seen.0

The entire place didn't seem to be connected to the outside world. Although something like a light-emitting strip was stuck to the corner, there was no response when people approached it.0

With the light from their VM, Yaya and Teng Teng explored the passage with excitement and anxiety.0

Teng Teng, with a red nose, rubbed her arms with both hands, and glanced left and right. "It's so cold here... Why does it feel like the temperature here is lower than outside?"0

"It really is a bit cold... Also, it feels so creepy..." Yaya hunched up her shoulders and looked at the front nervously, "Do you think something strange would suddenly pop...0