C922 Interlaced Point

A few sparse animal patterns appeared on the walls around the steel bunker where the Book of Hereafter was located. This caused Mu Xinshu to be curious. In this place, such a thing had appeared. What did the animal designs have to do with the steel bunker in front of him?

Towards this, Mu Xinshu thought for a long time, but still couldn't come up with anything