Is That the Metal That Stores Investiture?

In miss bornara too, we see the little medallions which allow a with waxen van to communicate with the persons from the southern country that we haven't really seen yet. Speaks a different language. But by wearing these medallions that have connections stored in them, they're able to speak toeach now. This is hinting and is the beginning of understanding how mis born era three and miss born era four are going to play out.