The standard hexagonal gear symbolized modern industrial precision and had a different kind of beauty.
This was an item that, when placed in a toolbox or component box, would not catch the attention of an adult in modern society.
However, now that it was on the neck of the mummified corpse, everyone's eyes were immediately attracted to it.
"Is this the sign on the heads of those mysterious people?" Su Mo asked without hesitation.
"Yes, it's the symbol on their heads! The appearance and size are the same! The only difference is this gear has more teeth!" Although Liu Jie was shocked, he still managed to answer the question frantically.
The information about the happenings in the center of the mountain had just been shared yesterday.
Now, they could see with their own eyes the traces left behind by the other party early in the morning.
